CN111861780A - Method and device for determining production of production layer in production well and storage medium - Google Patents
Method and device for determining production of production layer in production well and storage medium Download PDFInfo
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Abstract
The application discloses a method and a device for determining the yield of a production zone in a production well and a storage medium, and belongs to the technical field of oilfield development. The method is applied to a yield splitting system, and when the yield of a production zone in a production well is determined through the system, firstly, according to the acquired production zone information and first production data of the target production well corresponding to different production moments in the production process, dividing the production process of the target production well to obtain at least one production stage, selecting a corresponding yield splitting method based on the type of each production stage, determining the yield of the production layer of the target production well according to the yield splitting method corresponding to each production stage and the yields in a plurality of production cycles, the first production data and/or the second production data in the production stage, therefore, when the yield of the production layer of the target production well is determined, the best-matched yield splitting method can be selected for different production stages of the target production well, and the accuracy of the determination result is improved.
Description
Technical Field
The application relates to the technical field of oilfield development, in particular to a method and a device for determining the yield of a production zone in a production well and a storage medium.
Background
In the process of oil field development, technicians usually need to determine the development utilization situation of a reservoir according to the current accumulated production reserve and geological reserve of the reservoir, make a development scheme of the reservoir within a certain period of time in the future according to the development utilization situation of the reservoir, and then implement various potential excavation measures on the reservoir based on the development scheme so as to achieve the purpose of improving the crude oil recovery rate of the reservoir to the maximum extent. Wherein the current cumulative production reserve of the reservoir is determined based on the production of the individual production zones from each production well distributed over the reservoir.
In the related art, a method for determining the production of each production zone in a production well is provided, which comprises the following steps: firstly, for each production well distributed on a reservoir to be researched, daily output and production geological data of the production well are obtained, and then a proper output splitting method is selected from a plurality of existing output splitting methods by technical personnel according to the obtained data and production experience, wherein the output splitting method is used for distributing the total output of the production well to each production layer according to different weights. And finally, according to the selected yield splitting method, carrying out yield splitting on the daily yield of the production well to obtain the yield of each production layer in the production well. And after selecting a proper yield splitting method, continuously using the yield splitting method to split the production data of the production well in the whole production process of the production well, thereby obtaining the yield of each production layer of the production well in the whole production process.
Because the yield splitting method is manually selected by technicians according to production experience, the yield splitting method is influenced by various human factors, so that the selected yield splitting method is not matched with a production well, and the accuracy is low. Moreover, the production condition of the production well may change during the production process, which results in that the selected yield splitting method is no longer suitable for the production well, and if the yield splitting method is still used for performing yield splitting, the determined yield result deviates from the actual yield, and the accuracy is low.
Disclosure of Invention
The application provides a method and a device for determining the yield of a production zone in a production well and a storage medium, which can solve the problems of inaccurate yield of the production zone in the production well, complex determination process and low efficiency determined by using related technologies. The technical scheme is as follows:
in a first aspect, a method for determining the production of a production zone in a production well is provided, which is applied to a production splitting system, and the method comprises:
obtaining the yield of a target production well in a plurality of production cycles in the production process, and production zone information, first production data and second production data corresponding to different production times in the production process;
Wherein the first production data comprises crude oil viscosity and relative water uptake for each pay zone in the target production well and communication date of the target production well with an adjacent production well, and the second production data comprises permeability and thickness for each pay zone in the target production well and well spacing of the target production well from an adjacent production well;
dividing the production process of the target production well according to the production zone information and the first production data corresponding to different production times to obtain at least one production stage and the stage type of each production stage;
obtaining an output splitting method matched with each production stage in the at least one production stage from the stored corresponding relation between the stage type and the output splitting method;
and calculating the yield of each production layer of the target production well in the production process by a yield splitting method matched with each production stage in the at least one production stage according to the at least one production stage, the yields in the plurality of production periods and the first production data and/or the second production data corresponding to different production times.
Optionally, the dividing the production process of the target production well according to the production zone information and the first production data corresponding to different production times to obtain at least one production phase and a phase type of each production phase includes:
determining production stage division nodes of the production process of the target production well according to the production zone information and the first production data corresponding to different production times;
dividing the production process of the target production well according to the production stage division nodes to obtain at least one production stage;
determining first production data corresponding to each of the at least one production phase from first production data corresponding to different production times;
and determining the stage type of each production stage according to the first production data corresponding to each production stage.
Optionally, the determining a production staging node of the production process of the target production well according to the production zone information and the first production data corresponding to different production times includes:
determining a production well type of the target production well, wherein the production well type comprises a water injection well and a production well;
Determining node division parameters according to the type of the production well, the production zone information corresponding to different production time and first production data;
and determining the production stage division nodes of the production process of the target production well according to the change condition of the node division parameters.
Optionally, the determining a node partitioning parameter according to the production well type, the production zone information corresponding to different production times, and the first production data includes:
if the production well is a water injection well, determining production zone information corresponding to different production time, and crude oil viscosity and relative water absorption corresponding to each production zone in the target production well as the node division parameters;
and if the type of the production well is a production well, determining production zone information corresponding to different production time, crude oil viscosity and relative water absorption corresponding to each production zone in the target production well, and communication date of the target production well and an adjacent production well as the node division parameters.
Optionally, the determining a production stage partitioning node of the production process of the target production well according to the variation of the node partitioning parameter includes:
Detecting whether each of the node division parameters changes with time;
and if any one of the node division parameters changes along with time, determining the change time of the changed parameter as a production stage division node of the production process of the target production well.
Optionally, the determining the stage type of each production stage according to the first production data corresponding to each production stage includes:
for any production stage A in the at least one production stage, if the viscosity and the relative water absorption of the crude oil corresponding to the production stage A are both zero and the communication date of the target production well and the adjacent production well is both null, determining that the stage type of the production stage A is a formation coefficient production stage;
if the relative water absorption corresponding to the production stage A is zero but the corresponding crude oil viscosity is not zero, and the communication date of the target production well and the adjacent production well is a null value, determining that the stage type of the production stage A is a flow coefficient production stage;
if the relative water absorption corresponding to the production stage A is zero and the communication date of the target production well and the adjacent production well is not null, determining that the stage type of the production stage A is a communication coefficient production stage;
And if the relative water absorption amount corresponding to the production stage A is not zero, determining that the stage type of the production stage A is a water absorption profile production stage.
Optionally, the stage type and yield splitting method includes a plurality of stage types and yield splitting methods respectively corresponding to the plurality of stage types, and the plurality of stage types include a formation coefficient production stage, a flow coefficient production stage, a communication coefficient production stage and a water absorption profile production stage;
the yield splitting method corresponding to the formation coefficient production stage is a formation coefficient yield splitting method, the splitting method corresponding to the flow coefficient production stage is a flow coefficient yield splitting method, the splitting method corresponding to the communication coefficient production stage is a communication coefficient yield splitting method, and the splitting method corresponding to the water absorption profile production stage is a water absorption profile yield splitting method.
Optionally, the determining the yield of each production zone of the target production well in the production process according to the at least one production phase, the yields in the plurality of production cycles, the first production data and/or the second production data corresponding to different production times, and the yield splitting method matched with each production phase of the at least one production phase comprises:
Determining a production volume for each of the at least one production phase based on the at least one production phase and the production volumes over the plurality of production cycles;
determining first production data corresponding to each of the at least one production phase according to the at least one production phase and first production data corresponding to different production times, and/or determining second production data corresponding to each of the at least one production phase according to the at least one production phase and second production data corresponding to different production times;
determining the yield of each production layer of the target production well in each production stage in the at least one production stage according to the yield of each production stage in the at least one production stage and the corresponding first production data and/or second production data of each production stage in the at least one production stage by a yield splitting method matched with each production stage in the at least one production stage;
and correspondingly adding the yields of all the production layers of the target production well in the at least one production stage to obtain the yield of each production layer of the target production well in the production process.
Optionally, the determining, according to the yield of each of the at least one production phase and the first production data and/or the second production data corresponding to each of the at least one production phase, the yield of each production zone of the target production well in each of the at least one production phase through a yield splitting method matched with each of the at least one production phase includes:
for any production stage A in the at least one production stage, if the yield splitting method matched with the production stage A is a formation coefficient yield splitting method, determining the yield of each production layer of the target production well in the production stage A through the formation coefficient yield splitting method according to the yield of the production stage A and the corresponding permeability and thickness of the production stage A;
if the yield splitting method matched with the production stage A is a flow coefficient yield splitting method, determining the yield of each production layer of the target production well in the production stage A through the flow coefficient yield splitting method according to the yield of the production stage A, and the permeability, the thickness and the small layer crude oil viscosity corresponding to the production stage A;
If the yield splitting method matched with the production stage A is a flow coefficient yield splitting method, obtaining the permeability and thickness corresponding to each production layer in adjacent production wells of the target production well, and determining the yield of each production layer of the target production well in the production stage A through the flow coefficient yield splitting method according to the yield of the production stage A, the well spacing between the target production well and the adjacent production wells and the permeability and thickness corresponding to each production layer in the adjacent production wells;
and if the yield splitting method matched with the production stage A is a water absorption profile yield splitting method, determining the yield of each production layer of the target production well in the production stage A through the water absorption profile yield splitting method according to the yield of the production stage A and the relative water absorption corresponding to the production stage A.
In a second aspect, there is provided a production determining apparatus for a production zone in a production well, for use in a production split system, the apparatus comprising:
the production system comprises a first acquisition module, a second acquisition module and a third acquisition module, wherein the first acquisition module is used for acquiring the yield of a target production well in a plurality of production cycles in the production process, and the production zone information, the first production data and the second production data which correspond to different production time in the production process;
Wherein the first production data comprises crude oil viscosity and relative water uptake for each pay zone in the target production well and communication date of the target production well with an adjacent production well, and the second production data comprises permeability and thickness for each pay zone in the target production well and well spacing of the target production well from an adjacent production well;
the dividing module is used for dividing the production process of the target production well by a user according to the production zone information and the first production data corresponding to different production time to obtain at least one production stage and the stage type of each production stage;
the second acquisition module is used for acquiring the yield splitting method matched with each production stage in the at least one production stage from the stored corresponding relation between the stage type and the yield splitting method;
and the calculation module is used for calculating the yield of each production layer of the target production well in the production process through a yield splitting method matched with each production stage in the at least one production stage according to the at least one production stage, the yields in the plurality of production periods and the first production data and/or the second production data corresponding to different production times.
Optionally, the dividing module includes:
the first determining unit is used for determining production stage division nodes of the production process of the target production well according to the production zone information and the first production data corresponding to different production times;
the dividing unit is used for dividing the production process of the target production well according to the production stage dividing nodes to obtain at least one production stage;
a second determining unit configured to determine first production data corresponding to each of the at least one production phase from the first production data corresponding to different production times;
and the third determining unit is used for determining the phase type of each production phase according to the first production data corresponding to each production phase.
Optionally, the first determining unit includes:
a first determining subunit for determining a production well type of the target production well, the production well type comprising a water injection well and a production well;
the second determining subunit is used for determining node division parameters according to the type of the production well, the production zone information corresponding to different production times and the first production data;
and the third determining subunit is used for determining the production stage division node of the production process of the target production well according to the change condition of the node division parameter.
Optionally, the second determining subunit is specifically configured to:
if the production well is a water injection well, determining production zone information corresponding to different production time, and crude oil viscosity and relative water absorption corresponding to each production zone in the target production well as the node division parameters;
and if the type of the production well is a production well, determining production zone information corresponding to different production time, crude oil viscosity and relative water absorption corresponding to each production zone in the target production well, and communication date of the target production well and an adjacent production well as the node division parameters.
Optionally, the third determining subunit is specifically configured to:
detecting whether each of the node division parameters changes with time;
and if any one of the node division parameters changes along with time, determining the change time of the changed parameter as a production stage division node of the production process of the target production well.
Optionally, the third determining unit is specifically configured to:
for any production stage A in the at least one production stage, if the viscosity and the relative water absorption of the crude oil corresponding to the production stage A are both zero and the communication date of the target production well and the adjacent production well is both null, determining that the stage type of the production stage A is a formation coefficient production stage;
If the relative water absorption corresponding to the production stage A is zero but the corresponding crude oil viscosity is not zero, and the communication date of the target production well and the adjacent production well is a null value, determining that the stage type of the production stage A is a flow coefficient production stage;
if the relative water absorption corresponding to the production stage A is zero and the communication date of the target production well and the adjacent production well is not null, determining that the stage type of the production stage A is a communication coefficient production stage;
and if the relative water absorption amount corresponding to the production stage A is not zero, determining that the stage type of the production stage A is a water absorption profile production stage.
Optionally, the stage type and yield splitting method includes a plurality of stage types and yield splitting methods respectively corresponding to the plurality of stage types, and the plurality of stage types include a formation coefficient production stage, a flow coefficient production stage, a communication coefficient production stage and a water absorption profile production stage;
the yield splitting method corresponding to the formation coefficient production stage is a formation coefficient yield splitting method, the splitting method corresponding to the flow coefficient production stage is a flow coefficient yield splitting method, the splitting method corresponding to the communication coefficient production stage is a communication coefficient yield splitting method, and the splitting method corresponding to the water absorption profile production stage is a water absorption profile yield splitting method.
Optionally, the calculation module includes:
a fourth determining unit for determining the production volume of each production phase of the at least one production phase according to the at least one production phase and the production volumes in the plurality of production cycles;
a fifth determining unit, configured to determine, according to the at least one production phase and the first production data corresponding to different production times, first production data corresponding to each of the at least one production phase, and/or determine, according to the at least one production phase and the second production data corresponding to different production times, second production data corresponding to each of the at least one production phase;
a sixth determining unit, configured to determine, according to the yield of each of the at least one production phase and the first production data and/or the second production data corresponding to each of the at least one production phase, the yield of each production zone of the target production well in each of the at least one production phase through a yield splitting method matched with each of the at least one production phase;
and the adding unit is used for correspondingly adding the yield of each production zone of the target production well in the at least one production stage to obtain the yield of each production zone of the target production well in the production process.
Optionally, the sixth determining unit is specifically configured to:
for any production stage A in the at least one production stage, if the yield splitting method matched with the production stage A is a formation coefficient yield splitting method, determining the yield of each production layer of the target production well in the production stage A through the formation coefficient yield splitting method according to the yield of the production stage A and the permeability and the thickness corresponding to the production stage A;
if the yield splitting method matched with the production stage A is a flow coefficient yield splitting method, determining the yield of each production layer of the target production well in the production stage A through the flow coefficient yield splitting method according to the yield of the production stage A, and the permeability, the thickness and the small layer crude oil viscosity corresponding to the production stage A;
if the yield splitting method matched with the production stage A is a flow coefficient yield splitting method, obtaining the permeability and thickness corresponding to each production layer in adjacent production wells of the target production well, and determining the yield of each production layer of the target production well in the production stage A through the flow coefficient yield splitting method according to the yield of the production stage A, the well spacing between the target production well and the adjacent production wells and the permeability and thickness corresponding to each production layer in the adjacent production wells;
And if the yield splitting method matched with the production stage A is a water absorption profile yield splitting method, determining the yield of each production layer of the target production well in the production stage A through the water absorption profile yield splitting method according to the yield of the production stage A and the relative water absorption corresponding to the production stage A.
In a third aspect, there is provided an apparatus for determining production from a producing formation in a production well, the apparatus comprising:
a processor and a memory for storing processor-executable instructions;
wherein the processor is configured to perform any of the methods provided in the first aspect above.
In a fourth aspect, a computer-readable storage medium is provided, in which a computer program is stored, which, when executed by a processor, implements any of the methods provided in the first aspect above.
The technical scheme provided by the embodiment of the application at least has the following beneficial effects: the embodiment of the application is applied to a yield splitting system, and when the yield of a production zone in a production well is determined, the production process of a target production well can be rapidly split according to the obtained production zone information and first production data of the target production well corresponding to different production times in the production process, a yield splitting method matched with the type of the production stage is selected according to the type of the production stage corresponding to at least one split production stage, and then the yield of each production stage is split according to the selected yield splitting method of each production stage in the at least one production stage and the yields, the first production data and/or the second production data in a plurality of production periods in the corresponding production stage, so that the yields of all production zones of the target production well are obtained. Because the production split system divides and matches the production stages of the production well with the most appropriate production split method according to the production zone information and the first production data of the production well corresponding to different production times in the production process, the influence of human factors on the selection of the production split method is avoided, and the accuracy of matching each production stage in the production well with the production split method is improved. In addition, the production well is divided into different production stages, and the yield of the corresponding production stage is split to each production zone according to the most suitable yield splitting method for each production stage, so that the problem that the determined result deviates from the actual yield due to the fact that the yield splitting method is only used for splitting the yield of all the production stages of the target production well in the related technology is solved, and the accuracy of the yield result of the production zone in the production well is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic diagram of an output splitting system provided by an embodiment of the present application;
FIG. 2 is a schematic diagram of another mass splitting system provided by embodiments of the present application;
FIG. 3 is a schematic flow chart of a method for determining production from a producing zone in a production well according to an embodiment of the present disclosure;
FIG. 4 is a schematic flow chart of another method for determining production from a producing zone in a producing well according to an embodiment of the present disclosure;
FIG. 5 is a schematic diagram of an apparatus for determining production from a production zone in a production well according to an embodiment of the present disclosure;
fig. 6 is a schematic structural diagram of a terminal 600 according to an embodiment of the present application.
Detailed Description
To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.
First, terms referred to in the embodiments of the present application will be described.
Production in production cycle
The production in the production cycle refers to the total production of the production well in one production cycle, when the production well is a production well, the production in the production cycle refers to the total oil production of the production well in one production cycle, and when the production well is a water injection well, the production in the production cycle refers to the total water injection of the water injection well in one production cycle. The unit of the production cycle can be day, week, month, half year, etc.
Productivity layer information
The pay zone information refers to the layer number information of the pay zone of the production well currently in the mining state, and the pay zone information comprises the layer numbers of all the pay zones of the production well currently in the mining state.
Relative water absorption capacity
Relative water absorption is the percentage of the total water absorption of the whole well that is absorbed by each sub-zone of the productive well in the productive state when the well is a water injection well.
Communication date of target production well and adjacent production well
The communication date of the target production well and the adjacent production well refers to the date when a certain production layer in the target production well and the adjacent production well generate the water drive channel, and specifically, the date when the water drive channel is generated by the certain production layer in the target production well and the adjacent production well is detected for the first time can be used as the communication date.
Well spacing of a target production well from an adjacent production well
The well spacing between the target production well and the adjacent production well is the linear distance between a certain production level of the target production well and the same production level of the adjacent production well.
Yield splitting method
The yield split method refers to a method of determining the yield of each productive zone by assigning a weight to each productive zone of a production well, and assigning the total yield of the production well to each productive zone by each productive zone weight.
Next, an application scenario related to the embodiment of the present application is described.
In the process of producing and developing a reservoir according to the existing development scheme, when the oil production quantity of an oil production well in the range of the reservoir is reduced and the water content is increased, or the water injection pressure of a water injection well in the range of the reservoir is reduced, a dominant seepage channel is formed between the water injection well and the oil production well, and the like, the current development scheme is not suitable for the current production condition of the reservoir, and a new production scheme suitable for the current production condition of the reservoir is urgently needed to be made. Before a new production scheme is determined, scheme optimization needs to be carried out according to the utilization degree of the reservoir, the current accumulated production reserves of the reservoir need to be determined through calculation of the utilization degree of the reservoir, and as one reservoir is provided with a plurality of production layers, the current accumulated production reserves of each production layer can be accurately determined only through determination of the current accumulated production reserves of each production layer. Under the condition, the yield determining method applied to the production zones in the production wells in the yield splitting system can accurately and quickly determine the yields of the production zones of all the production wells in the range of the reservoir to be researched, so that the current accumulated production reserves of each production zone in the reservoir can be quickly determined, the accuracy of the determination result is improved, and the manual labor intensity is reduced. Before various excavation measures are carried out on the reservoir, the method provided by the embodiment of the application can be applied to obtain the latest reservoir development utilization situation, and the construction scheme of the excavation measures is scientifically adjusted according to the latest reservoir development utilization situation.
Finally, a system architecture related to the embodiments of the present application is introduced.
The method for determining the yield of the production zone in the production well can be applied to a yield splitting system, and the yield splitting system at least comprises a database server, a data acquisition management module, a production stage dividing module and a yield splitting module.
Fig. 1 is a schematic diagram of an output splitting system provided in an embodiment of the present application. Referring to fig. 1, the yield splitting system may include at least a database server 101, a data collection management module 102, a production staging module 103, and a yield splitting module 104. Wherein each module is specifically configured to:
the database server 101 is used for storing the data results, data indexes, documents and other contents of each module.
The data acquisition management module 102 is configured to acquire, from an oil and gas field generation management system including geological data and production data of production wells, production volumes of target production wells in a plurality of production cycles in a production process, and production zone information, first production data and second production data corresponding to different production moments in the production process.
And the production stage division module 103 is used for dividing the production process of the target production well into different production stages according to the production zone information and the first production data of the target production well corresponding to different production moments in the production process.
And the yield splitting module 104 is used for matching a corresponding yield splitting method for each production stage of the target production well and determining the yield of each production layer of each production stage of the target production well according to the corresponding splitting method.
FIG. 2 is a schematic diagram of another mass splitting system provided in embodiments of the present application. As shown in fig. 2, the yield splitting system includes 7 functional modules, which are a dynamic data management module 201, a basic information management module 202, a system management module 203, a production diagram drawing module 204, a key data checking module 205, a small-layer yield splitting module 206, and a small-layer dynamic analysis module 207.
The dynamic data management module 201 can implement the kinetic energy of importing scheme configuration, manual data management and structured data query.
The basic information management module 202 can realize the management function of basic information such as oil and gas field information, small-layer information, station information, library information, well information, business units, address units and the like.
The system management module 203 can realize the management functions of roles, users, personal information, data services, help topics, product information and other information.
The production map drawing module 204 may be configured to draw a production well complex production curve, an injection well complex production curve, a perforation status view, a production profile, an injection profile, a formation parameter equivalent map, and the like.
The critical data collation module 205 may perform collation functions for sub-segment data, perforation data, production profile data, injection profile data, perforation and sub-segment data, and profile and perforation data.
The sub-layer yield splitting module 206 may implement split record browsing and sub-layer yield splitting functions.
The small-layer dynamic analysis module 207 can realize the dynamic analysis function of the small-layer mining curve, the small-layer contrast curve, the small-layer descending curve, the small-layer water flooding curve and the small-layer data.
Through the yield splitting system provided by fig. 2, the yield of each production well on the target reservoir in a plurality of production cycles in the production process, the production zone information, the first production data and the second production data corresponding to different production moments in the production process can be automatically obtained, each production well is divided into production stages according to the data, the most suitable splitting method is matched for each production stage, and the production zone in the production well is split by using the most suitable splitting method matched with each production stage, so that the accuracy of determining the yield result of the production zone in the production well is improved.
It should be noted that all modules included in the yield splitting system may be disposed in one terminal, or may be disposed in multiple terminals.
Fig. 3 is a flowchart illustrating a method for determining a production rate of a production zone in a production well according to an embodiment of the present application, where the method may be applied to a terminal, which may be a mobile phone, a tablet computer, a computer, or the like. Referring to fig. 3, the method comprises the steps of:
step 301: obtaining the yield of a target production well in a plurality of production periods in the production process, and production zone information, first production data and second production data corresponding to different production times in the production process; the first production data comprises the viscosity and the relative water absorption of crude oil corresponding to each productive layer in the target production well and the communication date of the target production well and the adjacent production well, and the second production data comprises the permeability and the thickness corresponding to each productive layer in the target production well and the well spacing between the target production well and the adjacent production well.
Step 302: and dividing the production process of the target production well according to the production zone information and the first production data corresponding to different production times to obtain at least one production stage and the stage type of each production stage.
Step 303: and obtaining the yield splitting method matched with each production stage in at least one production stage from the corresponding relation between the stored stage types and the yield splitting method.
Step 304: and calculating the yield of each production layer of the target production well in the production process by a yield splitting method matched with each production stage in the at least one production stage according to the at least one production stage, the yields in the plurality of production periods and the first production data and/or the second production data corresponding to different production times.
The embodiment of the application is applied to a yield splitting system, and when the yield of a production zone in a production well is determined, the production process of a target production well can be rapidly split according to the obtained production zone information and first production data of the target production well corresponding to different production times in the production process, a yield splitting method matched with the type of the production stage is selected according to the type of the production stage corresponding to at least one split production stage, and then the yield of each production stage is split according to the selected yield splitting method of each production stage in the at least one production stage and the yields, the first production data and/or the second production data in a plurality of production periods in the corresponding production stage, so that the yields of all production zones of the target production well are obtained. In the embodiment of the application, the yield splitting system divides and matches the production stages of the production well with the most appropriate yield splitting method according to the production zone information and the first production data of the production well corresponding to different production times in the production process, so that the influence of human factors on the selection of the yield splitting method is avoided, and the accuracy of matching each production stage in the production well with the yield splitting method is improved. In addition, the production well is divided into different production stages, and the yield of the corresponding production stage is split to each production zone according to the most suitable yield splitting method for each production stage, so that the problem that the determined result deviates from the actual yield due to the fact that the yield splitting method is only used for splitting the yield of all the production stages of the target production well in the related technology is solved, and compared with the related technology, the accuracy of the yield result of the production zone in the production well is improved.
Optionally, the dividing the production process of the target production well according to the production zone information and the first production data corresponding to different production times to obtain at least one production phase and a phase type of each production phase includes:
determining production stage division nodes of the production process of the target production well according to the production zone information and the first production data corresponding to different production times;
dividing the production process of the target production well according to the production stage division nodes to obtain at least one production stage;
determining first production data corresponding to each of at least one production phase from first production data corresponding to different production times;
and determining the stage type of each production stage according to the first production data corresponding to each production stage.
Optionally, determining a production staging node of the production process of the target production well according to the production zone information and the first production data corresponding to different production times, comprises:
determining the production well type of a target production well, wherein the production well type comprises a water injection well and a production well;
determining node division parameters according to the type of the production well, and production zone information and first production data corresponding to different production times;
And determining the production stage division nodes of the production process of the target production well according to the change condition of the node division parameters.
Optionally, determining a node partitioning parameter according to the type of the production well, and the production zone information and the first production data corresponding to different production times, includes:
if the type of the production well is a water injection well, determining production zone information corresponding to different production time, and crude oil viscosity and relative water absorption corresponding to each production zone in the target production well as node division parameters;
and if the type of the production well is a production well, determining the information of the production zones corresponding to different production times, the crude oil viscosity and the relative water absorption corresponding to each production zone in the target production well and the communication date of the target production well and the adjacent production wells as node division parameters.
Optionally, determining a production stage division node of the production process of the target production well according to the variation of the node division parameter, including:
detecting whether each parameter in the node division parameters changes along with time;
and if any one of the node division parameters changes along with time, determining the change time of the changed parameter as a production stage division node of the production process of the target production well.
Optionally, determining a stage type of each production stage according to the first production data corresponding to each production stage includes:
for any production stage A in at least one production stage, if the crude oil viscosity and the relative water absorption corresponding to the production stage A are both zero and the communication date between the target production well and the adjacent production well is both null, determining that the stage type of the production stage A is a formation coefficient production stage;
if the relative water absorption corresponding to the production stage A is zero but the corresponding crude oil viscosity is not zero, and the communication date of the target production well and the adjacent production well is null, determining that the stage type of the production stage A is a flow coefficient production stage;
if the relative water absorption corresponding to the production stage A is zero and the communication date between the target production well and the adjacent production well is not null, determining that the stage type of the production stage A is a communication coefficient production stage;
and if the relative water absorption amount corresponding to the production stage A is not zero, determining the stage type of the production stage A as a water absorption profile production stage.
Optionally, the stage type and yield splitting method includes a plurality of stage types and yield splitting methods respectively corresponding to the plurality of stage types, and the plurality of stage types include a formation coefficient production stage, a flow coefficient production stage, a communication coefficient production stage and a water absorption profile production stage;
The yield splitting method corresponding to the formation coefficient production stage is a formation coefficient yield splitting method, the splitting method corresponding to the flow coefficient production stage is a flow coefficient yield splitting method, the splitting method corresponding to the communication coefficient production stage is a communication coefficient yield splitting method, and the splitting method corresponding to the water absorption profile production stage is a water absorption profile yield splitting method.
Optionally, determining the production of each production zone of the target production well in the production process according to the at least one production phase, the production in the plurality of production cycles, the first production data and/or the second production data corresponding to different production times, and the yield splitting method matched with each production phase in the at least one production phase comprises:
determining a production volume for each of the at least one production phase based on the at least one production phase and the production volumes over the plurality of production cycles;
determining first production data corresponding to each of the at least one production phase based on the at least one production phase and the first production data corresponding to different production times, and/or determining second production data corresponding to each of the at least one production phase based on the at least one production phase and the second production data corresponding to different production times;
Determining the yield of each production layer of the target production well in each production stage in the at least one production stage according to the yield of each production stage in the at least one production stage and the first production data and/or the second production data corresponding to each production stage in the at least one production stage by a yield splitting method matched with each production stage in the at least one production stage;
and correspondingly adding the yields of all the production layers of the target production well in at least one production stage to obtain the yield of each production layer of the target production well in the production process.
Optionally, determining the production of each production zone of the target production well in each production phase of the at least one production phase by a yield splitting method matched with each production phase of the at least one production phase according to the production of each production phase of the at least one production phase and the corresponding first production data and/or second production data of each production phase of the at least one production phase, comprises:
for any production stage A in at least one production stage, if the yield splitting method matched with the production stage A is a formation coefficient yield splitting method, determining the yield of each production layer of the target production well in the production stage A through the formation coefficient yield splitting method according to the yield of the production stage A and the corresponding permeability and thickness of the production stage A;
If the yield splitting method matched with the production stage A is a flow coefficient yield splitting method, determining the yield of each production layer of the target production well in the production stage A through the flow coefficient yield splitting method according to the yield of the production stage A, the permeability, the thickness and the small layer crude oil viscosity corresponding to the production stage A;
if the yield splitting method matched with the production stage A is a flow coefficient yield splitting method, obtaining the permeability and thickness corresponding to each production layer in the adjacent production wells of the target production well, and determining the yield of each production layer of the target production well in the production stage A through the flow coefficient yield splitting method according to the yield of the production stage A, the well spacing between the target production well and the adjacent production wells and the permeability and thickness corresponding to each production layer in the adjacent production wells;
and if the yield splitting method matched with the production stage A is a water absorption profile yield splitting method, determining the yield of each production layer of the target production well in the production stage A through the water absorption profile yield splitting method according to the yield of the production stage A and the relative water absorption corresponding to the production stage A.
All the above optional technical solutions can be combined arbitrarily to form an optional embodiment of the present application, and the present application embodiment is not described in detail again.
Fig. 4 is a flowchart illustrating another method for determining the production of a producing zone in a producing well according to an embodiment of the present application, where the method may be applied to a terminal, which may be a mobile phone, a tablet computer, a computer, or the like. Referring to fig. 4, the method includes the steps of:
step 401: the method comprises the steps of obtaining the yield of a target production well in a plurality of production cycles in the production process, and production zone information, first production data and second production data corresponding to different production times in the production process, wherein the first production data comprise the crude oil viscosity and the relative water absorption amount corresponding to each production zone in the target production well and the communication date of the target production well and adjacent production wells, and the second production data comprise the permeability and the thickness corresponding to each production zone in the target production well and the well spacing between the target production well and the adjacent production wells.
The target production well refers to a production well of which the yield of a production zone is to be determined, specifically, the type of the target production well can be divided into two types, one type is a production well, the other type is a water injection well, and according to the specific type of the target production well, a yield splitting method corresponding to the specific type can be selected to determine the yield of the production zone of the target production well, so that the accuracy of a determination result is improved. In practical applications, the target production well may be selected by a user in the yield splitting system, or may be determined by the yield splitting system. For example, the yield splitting system may determine all production wells on a reservoir as target production wells and determine the production of the production zones in all target productions.
The production in the production cycle refers to the total output of the production well counted from the wellhead of the production well in one production cycle, when the production well is a production well, the production in the production cycle refers to the total oil output of the production well counted from the wellhead of the production well in one production cycle, and when the production well is a water injection well, the production in the production cycle refers to the total water injection counted from the wellhead of the production well in one production cycle.
It should be noted that the unit of the production cycle may be day, week, month, half year, etc., and the production cycle may be determined according to the requirement of the user on the complexity of the calculation process and the accuracy of the calculation result, the shorter the production cycle is, the more the output number of the production cycle used in the calculation process is, the more the calculation process is complex, and the more the calculation result is accurate, which is not limited in the embodiment of the present application.
In the actual production process, the yield in the production cycle can be obtained by user input, can be obtained by input of other equipment, and can also be obtained by acquiring corresponding data from an oil-gas field generation management system containing geological data and production data of a production well through a data acquisition management module in the yield splitting system.
The production zone information corresponding to different production time in the production process of the target production well refers to the zone number information of all production zones of the target production well in the production process, wherein the well is currently in a mining state at different production time. Alternatively, the pay zone information is a numerical set composed of the zone numbers of all pay zones in the mining state corresponding to the same production time, for example, the pay zone information of the B well in 1, 10 and 2019 days may be (k1, k2, k4, k5, g1), and the pay zone information in 1, 20 and 2019 days may be (k1, k2, k3, k4, k5, g 1).
In the embodiment of the application, the production zone information of the target production well corresponding to different production time in the production process can be obtained by user input, can be obtained by sending of other equipment, and can also be obtained by collecting from an oil and gas field generation management system containing geological data and production data of the production well through a data collection management module in the yield splitting system. For example, the production zone information corresponding to different production times of the B-well in the production process is stored in the oil and gas field generation management system for 60 total, and the data acquisition management module in the yield splitting system can acquire the production zone information corresponding to the different production times of the 60B-wells in the production process and store the information in the database server.
Wherein the viscosity of the crude oil of the pay zone refers to the viscosity of the crude oil produced from the pay zone in the target production well. In the embodiment of the application, the crude oil viscosity of the production zone can be obtained by inputting of a user, can be obtained by sending of other equipment, and can also be obtained by collecting from an oil-gas field generation management system containing geological data and production data of a production well through a data collection management module in the yield splitting system. For example, the oil and gas field generation management system stores 100 crude oil viscosities of each production zone corresponding to different production times of the B-well in the production process, and the data acquisition management module in the yield splitting system can acquire the crude oil viscosities of each production zone corresponding to different production times of the 100B-wells in the production process and store the crude oil viscosities in the database server.
Wherein, the relative water absorption of the production zone refers to the percentage of the water absorption of each small zone in each production zone of the production well in a production state to the total water absorption of the whole well when the production well is a water injection well. In the embodiment of the application, the relative water absorption of the production zone can be obtained by user input, can be obtained by sending from other equipment, and can also be obtained by collecting from an oil-gas field generation management system containing geological data and production data of a production well through a data collection management module in the yield splitting system. For example, the relative water absorption of each production zone of a certain production time of the B well in the production process is stored in the oil and gas field generation management system, the relative water absorption of each production zone of the production time can be collected through a data collection management module in the yield splitting system, and the relative water absorption of each production zone can be determined according to the relative water absorption of each production zone.
The communication date of the target production well and the adjacent production well refers to the date when a certain production layer in the target production well and the adjacent production well generate the water drive channel. Specifically, the date when the water flooding channel is generated between a certain production layer in the target production well and the adjacent production well is detected for the first time can be used as the communication date. In the embodiment of the application, the communication date between the target production well and the adjacent production well can be obtained by user input, can be obtained by sending of other equipment, and can also be obtained by collecting from an oil and gas field generation management system containing geological data and production data of the production well through a data collection management module in the yield splitting system. For example, the date corresponding to the first time that the water drive channel is produced between the B-well and the adjacent B-well is detected to be 10, month and 20 days in 2018, the oil and gas field generation management system records the information in the record table of 10, month and 20 days in 2018, the data acquisition management module in the yield split system can acquire the information from the oil and gas field generation management system, and the date corresponding to the first time that the water drive channel is produced between the B-well and the adjacent B-well is determined to be 10, month and 20 days in 2018.
Where the permeability of a producing formation refers to the ability of the rock to allow fluid to pass through at the location of the reservoir where the different producing formations of the target producing well are located. The permeability of the pay zone is expressed in percent, for example, the permeability of a k1 pay zone for a B well is 20%, or the permeability of a g1 pay zone for a B well is 25%. In the embodiment of the application, the communication date between the target production well and the adjacent production well can be obtained by user input, can be obtained by sending of other equipment, and can also be obtained by collecting from an oil and gas field generation management system containing geological data and production data of the production well through a data collection management module in the yield splitting system. For example, the permeability corresponding to each production zone of the B well is recorded in the oil and gas field generation management system, and the permeability corresponding to each production zone of the B well can be acquired from the oil and gas field generation management system through the data acquisition management module in the yield split system, and the data are stored in the database server.
Wherein the thickness of the pay zone refers to the thickness of each pay zone of the pay zones in the target production well in the reservoir. In the embodiment of the application, the thickness of the production zone can be obtained by user input, can be obtained by sending from other equipment, and can also be obtained by collecting from an oil-gas field generation management system containing geological data and production data of a production well through a data collection management module in the yield splitting system. For example, the oil and gas field generation management system records the thickness of the reservoir corresponding to each production zone of the B well, and the data acquisition management module in the yield split system can acquire the thickness of the reservoir corresponding to each production zone of the B well from the oil and gas field generation management system and store the data in the database server.
The well spacing between the target production well and the adjacent production well refers to a linear distance between a certain production layer of the target production well and the same production layer of the adjacent production well. In the embodiment of the application, the well spacing between the target production well and the adjacent production well can be obtained by user input, can be obtained by sending by other equipment, and can also be obtained by collecting from an oil and gas field generation management system containing geological data and production data of the production well through a data collection management module in the yield splitting system. For example, the well spacing from the B well to the B well is recorded in the oil and gas field generation management system, and the well spacing from the B well to the B well can be acquired from the oil and gas field generation management system through the data acquisition management module in the yield splitting system and is stored in the database server.
In the production process of the target production well, if the development plan of the pay zone of the target production well is adjusted, the number of the pay zone of the target production well is changed, or if a new water absorption profile test is performed on the target production well, the relative water absorption amount of each pay zone of the target production well is changed, or if a crude oil viscosity test of the pay zone is performed on the target production well, the crude oil viscosity of each pay zone of the target production well is changed. Since the change of the data may cause the type of the production phase to change, and the corresponding yield splitting method of each production phase also changes, in order to make the yield splitting method applied to each production phase the best matching yield splitting method with the production phase, the production process of the target production well may be divided before determining the yield of the production zone of the target production well, so as to obtain at least one production phase and the phase type of each production phase.
After obtaining the production volumes of the target production well in a plurality of production cycles in the production process and the production zone information, the first production data and the second production data corresponding to different production times in the production process, the production process of the target production well can be divided according to the production zone information and the first production data corresponding to different production times according to the following steps 402 to 405 to obtain at least one production stage and the stage type of each production stage.
Step 402: and determining a production stage division node of the production process of the target production well according to the production zone information corresponding to different production times and the first production data.
It should be noted that, because the production zone information and the first production data of the target production well are both data corresponding to different production times of the target production well in the production process, at different production times, the production zone information and the first production data of the target production well may change with the change of a development scheme or a measure type, where the measure type refers to an oil-water well operation type such as a production position, a production mode, and a production parameter in a wellbore, which is changed for the purpose of increasing production and injection of the oil-water well, and specifically, the measure type may be divided into hydraulic fracturing, unblocking (physical, chemical), layer adjusting, layer repairing, hole repairing, upward returning, recovery, commingling, water plugging (physical, chemical), separate production, diversion production, major repair, and the like.
For example, when the unit of the production cycle is day, the pay zone information of the B well is (k1, k2, k4, k5, g1) on the day of 12/20/2018, whereas the B well development plan is changed on the day of 12/21/2018, k3 is added as a pay zone for production, and the pay zone information of the B well at the production time is (k1, k2, k3, k4, k5, g 1).
For another example, on the day of 12/20/2018, the technician did not determine the crude oil viscosity of each pay zone in the B well, and at this time, the crude oil viscosity of each pay zone in the B well was 0, whereas on the day of 12/21/2018, the technician determined the crude oil viscosity of each pay zone in the B well, and obtained the crude oil viscosity of each pay zone in the B well as being (k1, 30mP · s, k2, 40mP · s, k3, 35mP · s, k4, 38mP · s, k5, 38mP · s, g1, 40mP · s).
For another example, the relative water absorption of each pay zone in the B well was not determined by the technician on the day of 12/20/2018, where the relative water absorption of each pay zone in the B well was 0, and was determined by the technician on the day of 21/12/2018, to give the relative water absorption of each pay zone in the B well as (k1, 20%, k2, 10%, k3, 10%, k4, 30%, k5, 15%, g1, 15%).
In addition, to more accurately determine the production volume of each production zone of the target production well, production zone information and first production data corresponding to different production times from the date of commissioning of the target production well may be obtained. Alternatively, the unit of production time may be day, week, month, bi-month, semi-year or year, and preferably the unit of production time is day, i.e. the production zone information and the first production data of the target production well are acquired each day during the production process.
Specifically, the production stage division node of the target production well may be determined directly according to the production zone information and the first production data corresponding to different production times, or the production well type of the target production well may be determined first, and then the production stage division node of the target production well may be determined according to the production well type of the target production well, the production zone information and the first production data corresponding to different production times, which is not specifically limited in this embodiment of the present application.
Optionally, when the production well type of the target production well is determined first, and then the production stage division node of the target production well is determined according to the production well type of the target production well, the production zone information corresponding to different production times and the first production data, the method can be specifically implemented through the steps 4021 and 4023.
Step 4021: and determining the production well type of the target production well, wherein the production well type comprises a water injection well and a production well.
It should be noted that in oilfield flooding development, the medium for driving the flow of crude oil in the reservoir is water, and the energy of the original water in the reservoir is not enough to drive the flow of crude oil, so that a water injection well and a production well can be arranged in the reservoir to inject water into the reservoir through the water injection well, thereby increasing the capacity in the reservoir and driving the flow of crude oil in the reservoir to the production well. Thus, in a reservoir, the production well types of the target production well are generally divided into two main categories, one being a water injection well and one being a production well. In addition, because the flowing media and the production characteristics of the water injection well and the oil production well are different, in order to more accurately determine the yield of each production zone, the water injection well and the oil production well can be distinguished, so that the production stage division node of the target production well can be determined according to the most appropriate method.
Step 4022: and determining node division parameters according to the type of the production well, and the production zone information and the first production data corresponding to different production times.
It should be noted that, the production wells are of different types, and the corresponding first production data are also different. For example, when the production well type is an injection well, the first production data corresponding to the injection well includes the viscosity and relative water uptake of crude oil corresponding to each pay zone in the target production well; when the production well is a production well, the production well and the adjacent water injection well are not formed at the initial stage of water-drive oil extraction, but are formed when a water flow dominant channel is formed after a stable production stage, so that the communication date between the target production well and the adjacent production well is only the data included in the corresponding first generated data when the production well of the target production well is the production well.
Specifically, if the production well is a water injection well, determining production zone information corresponding to different production times of a target production well, and crude oil viscosity and relative water absorption corresponding to each production zone in the target production well as node division parameters; and if the type of the production well is a production well, determining production zone information corresponding to different production time of the target production well, crude oil viscosity and relative water absorption corresponding to each production zone in the target production well, and communication date of the target production well and the adjacent production well as node division parameters.
Step 4023: and determining the production stage division nodes of the production process of the target production well according to the change condition of the node division parameters.
It should be noted that, when the node division parameter changes, it indicates that the target production well has been developed and adjusted or a new production measure is implemented at the time corresponding to the change of the node division parameter, and when a new node division parameter is obtained, if the previous yield splitting method is still used to split the yield of the current production stage, the accuracy of the determination result is reduced, so after the node division parameter is determined, the production stage division node of the production process of the target production well can be determined according to the change condition of the node division parameter.
Specifically, when determining the production stage division node of the production process of the target production well according to the variation of the node division parameters, it may be first detected whether each parameter of the node division parameters varies with time, and if any parameter of the node division parameters varies with time, the variation time of the varied parameter is determined as the production stage division node of the production process of the target production well.
It should be noted that, because the node division parameter includes a plurality of parameters, and in the plurality of node division parameters, any parameter changes with time, and the yield splitting method matched with the production phase also changes in the production phase from the time when the parameter changes to the time when the next node division parameter changes, it is necessary to detect whether each parameter in the node division parameters changes with time, and if any parameter in the node division parameters changes with time, the change time of the changed parameter is determined as the production phase division node of the production process of the target production well.
Taking a target production well as a water injection well as an example, in 2018, 10 and 20 days, the information of a production zone in the target production well is changed, the information of the production zone is changed from (k1, k2, k4, k5 and g1) to (k1, k2, k3, k4, k5 and g1) in 2018, 10 and 19 days, and other node division parameters are not changed, so that the 2018, 10 and 20 days can be used as production phase division nodes of the production process of the target production well. On the other hand, on day 1/2019, the relative water absorption amount in the target production well changes from (k 1: 20%, k 2: 10%, k 3: 10%, k 4: 30%, k 5: 15%, g 1: 15%) to (k 1: 10%, k 2: 30%, k 3: 20%, k 4: 20%, k 5: 10%, g 1: 10%) on day 31/12/2018, while the other node division parameters are not changed, so that day 20/10/2018 can be used as a production stage division node of the production process of the target production well.
Step 403: and dividing the production process of the target production well according to the production stage division nodes to obtain at least one production stage.
It should be noted that, when the number of production stage division nodes is denoted as N and the number of production stages is denoted as M, the direct relationship between the number of production stage division nodes and the number of production stages is N +1 — M, and the value of N is a positive integer greater than or equal to zero. For example, when the number of production phase division nodes is 0, the resulting number of production phases is 1, and when the number of production phase division nodes is 1, the resulting number of production phases is 2.
In addition, because the node division parameter is changed when the production phase division node of the target production well is divided, when the production process of the target production well is divided according to the production phase division node, the production phase division nodes can be arranged in time sequence, then the previous production phase division node is used as the starting time of the production phase, and the time corresponding to the previous production cycle of the current production phase division node is used as the finishing time of the production phase, so that a production phase is determined.
For example, when the production cycle of one target production well B is day, the commissioning date of the target production well B is 2015 year 1 month 1 day, and the production determination date of the pay zone of the target production well B is 2018 year 12 month 31 day, the production cycle of the target production well B is 2015 year 1 month 1 day to 2018 year 12 month 31 day, and according to the method of step 402, the production phase division nodes of the production process of the target production well B are determined to be 2017 year 12 month 1 day and 2018 year 6 month 1 day. According to the two determined production stage division nodes, the production process of the target production well B can be divided into 3 stages, namely a first production stage from 1/2015 to 11/2017 and 30/11/2017, a second production stage from 12/1/2017 to 5/2018 and 31/2018, and a third production stage from 6/1/2018 and 12/30/2018.
It should be noted that the production cycle and the production phase dividing node of the target production well are exemplary data in the embodiment of the present application, and do not constitute specific limitations on the production cycle and the production phase dividing node of the target production well.
Step 404: first production data corresponding to each of the at least one production phases is determined from the first production data corresponding to the different production times.
It should be noted that after the production process of the target production well is divided to obtain at least one production stage, the first production data corresponding to different production times can be divided into the first production data corresponding to each of the at least one production stage according to the production time corresponding to the at least one production stage, so that when the stage type of each production stage is determined, only the first production data corresponding to the production stage needs to be obtained, and only the first production data corresponding to the production stage needs to be verified, so that the stage type of each production stage can be determined, thereby greatly reducing the amount of calculation and shortening the determination time of the determination process.
For example, dividing the production process of the target production well B into 3 production stages, namely a first production stage of 2015 year 1 month 1 day-2017 year 11 month 30 days, a second production stage of 2017 year 12 month 1 day-2018 year 5 month 31 days, and a third production stage of 2018 year 6 month 1 day-2018 year 12 month 30, the first production data between 2015 year 1 month 1 day-2018 year 12 month 30 days is also divided into three stages.
Taking the crude oil viscosity corresponding to each pay zone in the target producing well B as an example, the crude oil viscosity corresponding to each pay zone in the target producing well B from 1 month and 1 day in 2015 to 11 months and 30 days in 2017 can be determined as the crude oil viscosity corresponding to each pay zone in the first production stage of the target producing well B, the crude oil viscosity corresponding to each pay zone in the target producing well B from 1 month and 1 day in 2017 to 5 months and 31 days in 2018 can be determined as the crude oil viscosity corresponding to each pay zone in the second production stage of the target producing well B, and the crude oil viscosity corresponding to each pay zone in the target producing well B from 6 months and 1 day in 2018 to 12 months and 30 days in 2018 can be determined as the crude oil viscosity corresponding to each pay zone in the third production stage of the target producing well B. The determination method of the relative water absorption corresponding to each pay zone in the target production well B, the communication date between the target production well and the adjacent production well and the determination method of the crude oil viscosity corresponding to each pay zone are the same, and the embodiment of the application is not repeated.
It should be noted that the production phase of the target production well and the first production data corresponding to each determined production phase are exemplary data in the embodiment of the present application, and do not constitute a specific limitation on the production phase of the target production well and the first production data corresponding to each determined production phase, in practical applications, the production phase of the target production well and the first production data corresponding to each determined production phase may also be other data, which is not specifically limited in the embodiment of the present application.
Step 405: and determining the stage type of each production stage according to the first production data corresponding to each production stage.
It should be noted that the stage type can be used to select the yield splitting method that matches the production stage of the target production well most. In practical applications, the production phases of the target production well are divided according to the production zone information and the first production data corresponding to different production times of the target production well, so that for each divided production phase, a combination type of the first production data exists. Based on this, the combination types of the first production data may be classified to determine the phase type of the production phase from the different combination types of the first production data.
Alternatively, the phase types of the production phase may include a formation coefficient production phase, a flow coefficient production phase, a communication coefficient production phase, and a water absorption profile production phase, depending on the combination type of the first production data. That is, the phase type of each production phase may be determined as a formation coefficient production phase, a flow coefficient production phase, a connectivity coefficient production phase, and a water absorption profile production phase according to the first production data corresponding to each production phase.
In particular, for any one of the at least one production phase a, the phase type of this production phase a can be determined as follows:
1) and if the crude oil viscosity and the relative water absorption corresponding to the production stage A are both zero and the communication date of the target production well and the adjacent production well is both null, determining that the stage type of the production stage A is a formation coefficient production stage.
2) And if the relative water absorption corresponding to the production stage A is zero but the corresponding crude oil viscosity is not zero, and the communication date of the target production well and the adjacent production well is null, determining that the stage type of the production stage A is a flow coefficient production stage.
3) And if the relative water absorption corresponding to the production phase A is zero and the communication date of the target production well and the adjacent production well is not null, determining that the phase type of the production phase A is a communication coefficient production phase.
4) And if the relative water absorption amount corresponding to the production stage A is not zero, determining the stage type of the production stage A as a water absorption profile production stage.
It should be noted that, when the stage type of the production stage a is determined, when the relative water absorption is zero, since the difference in crude oil viscosity between the production zones is small, the technician does not test the crude oil viscosity of each production zone of the target production well, so that the crude oil viscosity data of the production zone is also zero, and no matter the target production well is a water injection well or a production well, the communication date between the target production well and an adjacent production well is null, the stage type of the production stage a can be determined as the formation coefficient production stage.
When the relative water absorption is zero, the viscosity difference of crude oil between the production layers is large, so that technicians test the viscosity of the crude oil of each production layer of the target production well to obtain the crude oil viscosity data of each production layer, and the communication date between the target production well and the adjacent production well is null no matter the target production well is a water injection well or a production well, so that the stage type can be determined as the flow coefficient production stage.
When the target production well is a production well, if the relative water absorption corresponding to the production stage a is zero and the communication date between the target production well and the adjacent production well is not null, it indicates that the target production well and the adjacent water injection well directly have a communication relationship in the production stage a, and at this time, the stage type of the production stage a can be a communication coefficient production stage.
The relative water absorption is the most intuitive and reliable data when the yield of the production zone of the target production well is determined, so that no matter the target production well is a water injection well or a production well, if the relative water absorption corresponding to the production phase A is not zero, the phase type of the production phase A is determined as a water absorption profile production phase, and the production phase is the production phase capable of determining the yield of each production zone most accurately in the production process of the target production well.
After determining the phase type for each of the at least one production phase of the target production well, a yield split method matching each of the at least one production phase may be determined according to step 406.
Step 406: and obtaining the yield splitting method matched with each production stage in at least one production stage from the corresponding relation between the stored stage types and the yield splitting method.
It should be noted that, the stage type of each production stage in the at least one production stage corresponds to a unique yield splitting method, the corresponding relationship is stored in the corresponding relationship between the stage type and the yield splitting method, and in practical applications, when the stage type of each production stage in the at least one production stage is determined, the yield splitting method matched with each production stage in the at least one production stage can be obtained from the stored corresponding relationship between the stage type and the yield splitting method.
Optionally, the stage type and yield splitting method includes a plurality of stage types and yield splitting methods respectively corresponding to the plurality of stage types, and the plurality of stage types include a formation coefficient production stage, a flow coefficient production stage, a communication coefficient production stage and a water absorption profile production stage, where the yield splitting method corresponding to the formation coefficient production stage is the formation coefficient yield splitting method, the splitting method corresponding to the flow coefficient production stage is the flow coefficient yield splitting method, the splitting method corresponding to the communication coefficient production stage is the communication coefficient yield splitting method, and the splitting method corresponding to the water absorption profile production stage is the water absorption profile yield splitting method.
The formation factor yield splitting method is to determine the splitting weight of each production layer of the target production well in the formation factor production stage according to the corresponding permeability and thickness of each production layer of the target production well, and then determine the yield of each production layer of the target production well in the production stage according to the splitting weight of each production layer and the yield of the target production well in the production stage.
The flow coefficient yield splitting method is that the splitting weight of each production layer of a target production well in a flow coefficient production stage is determined according to the crude oil viscosity, permeability and thickness corresponding to each production layer in the target production well, and then the yield of each production layer of the target production well in the production stage is determined according to the splitting weight of each production layer and the yield of the target production well in the production stage.
The connected coefficient yield splitting method is that when a target production well is a production well, the splitting weight of each production layer of the target production well in a connected coefficient production stage is determined according to the water injection quantity received by each production layer of the target production well and split from adjacent production wells, and then the yield of each production layer of the target production well in the production stage is determined according to the splitting weight of each production layer and the yield of the target production well in the production stage. Before that, the water injection amount split from the adjacent production wells received by each production zone of the target production well can be determined according to the permeability and the thickness of each production zone in the production well adjacent to the target production well in the production stage and the well spacing between the target production well and the adjacent production wells.
The water absorption profile yield splitting method is that according to the corresponding relative water absorption of each production layer in a target production well, the splitting weight of each production layer in the water absorption profile production stage of the target production well is determined, and then according to the splitting weight of each production layer and the yield of the target production well in the production stage, the yield of each production layer in the production stage of the target production well is determined.
It should be further noted that, according to the principle of each yield splitting method, in the practical application process, the use priority may be set for the formation coefficient yield splitting method, the flow coefficient yield splitting method, the communication coefficient yield splitting method and the water absorption profile yield splitting method, wherein when the target production well is a water injection well, the use priority of the water absorption profile yield splitting method is set to be high, the use priority of the flow coefficient yield splitting method is set to be medium, and the use priority of the formation coefficient yield splitting method is set to be low. And when the target production well is an oil production well, setting the use priority of the water absorption profile yield splitting method to be highest, setting the use priority of the communication coefficient yield splitting method to be high, setting the use priority of the flow coefficient yield splitting method to be medium, and setting the use priority of the formation coefficient yield splitting method to be low.
Step 407: and calculating the yield of each production layer of the target production well in the production process by a yield splitting method matched with each production stage in the at least one production stage according to the at least one production stage, the yields in the plurality of production periods and the first production data and/or the second production data corresponding to different production times.
It should be noted that, after the production process of the target production well is divided into at least one production stage and a unique yield splitting method is matched for each production stage in the at least one production stage, the yield in the production stage can be split according to the yield splitting method corresponding to the production stage to obtain the yield of each production layer in a plurality of production cycles in the target production well, and then the yield of each production layer in the target production well is obtained according to the yield of each production layer in a plurality of production cycles in the target production well.
In addition, when the method for determining the yield of the production zone in the production well is used for simultaneously determining the yields of the production zones of a plurality of target production wells located in the reservoir range, the production well types of the target production wells can be firstly classified to determine the yields of the production zones of the plurality of target production wells belonging to the water injection well and the plurality of target production wells belonging to the production well, and then according to the method provided by the embodiment of the application, the yield of the production zone of each target production well in the plurality of target production wells belonging to the water injection well is determined, and then the yield of the production zone of each target production well in the plurality of target production wells belonging to the production well is determined, so that the yield of the production zone of each production well of the plurality of target production wells is determined to be more accurate.
Specifically, the production of each pay zone of the target production well during production may be calculated according to steps 4071-4074.
Step 4071: the production volume for each of the at least one production phase is determined based on the at least one production phase and the production volumes over the plurality of production cycles.
It should be noted that each production stage in the at least one production stage corresponds to the production cycle of the production stage, and when determining the yield of each production in each production stage, the yields of the plurality of production cycles may be divided into the yields in the plurality of production cycles corresponding to the production cycle of each production stage according to the production cycle corresponding to each production stage, and then the yield of each production stage in the at least one production stage may be determined according to the yields in the plurality of production cycles corresponding to the production cycle of each production stage.
For example, the unit of the production cycle of the production volumes in the plurality of acquired production cycles is day, the production processes of the target production well B are respectively a first production phase of 2015 1 month 1 day to 2017 11 month 30 day, a second production phase of 2017 12 month 1 day to 2018 year 5 month 31 day, and a third production phase of 2018 year 6 month 1 day to 2018 year 12 month 30 day, the production cycle corresponding to the production cycle of the first production phase is determined to be 2015 1 month 1 day to 2017 year 11 month 30 day, the production cycle corresponding to the production cycle of the second production phase is 2017 year 12 month 1 day to 2018 year 5 month 31 day, and the production cycle corresponding to the production cycle of the third production phase is determined to be 2018 year 6 month 1 day to 2018 year 12 month 30 day. Then, the daily yields between 1/2015 and 11/30/2017 can be accumulated to determine the yield of the first production stage, between 12/1/2017 and 5/31/2018 and to determine the yield of the second production stage, and between 6/1/2018 and 12/30/2018 and to determine the yield of the third production stage.
Step 4072: determining first production data corresponding to each of the at least one production phase based on the at least one production phase and the first production data corresponding to the different production times, and/or determining second production data corresponding to each of the at least one production phase based on the at least one production phase and the second production data corresponding to the different production times.
It should be noted that, because the crude oil viscosity and the relative water absorption amount corresponding to each production zone in the first production data and the data of the communication date between the target production well and the adjacent production well are unchanged, after determining the node division parameters based on the first production data, determining the production stage division nodes of the production process of the target production well according to the change conditions of the node division parameters, and dividing the production process of the target production well according to the production stage division nodes, the obtained first production data of each production stage in at least one production stage is determined, and based on this, the first production data corresponding to each production stage in at least one production stage can be quickly determined according to at least one production stage and the first production data corresponding to different production times.
When the second production data corresponding to each of the at least one production phase is determined, the same method as the method of determining the yield of each of the at least one production phase according to the yields of the at least one production phase and the production periods in step 3071 is used, and when the second production data corresponding to each of the at least one production phase is determined, the second production data corresponding to different production times may be divided into the second production data in the production periods corresponding to each of the production phases according to the production periods corresponding to each of the production phases, and then the second production data of each of the at least one production phase may be determined according to the second production data in the production periods corresponding to the production periods of each of the production phases.
Step 4073: and determining the yield of each production layer of the target production well in each production stage in the at least one production stage according to the yield of each production stage in the at least one production stage and the corresponding first production data and/or second production data of each production stage in the at least one production stage by a yield splitting method matched with each production stage in the at least one production stage.
It should be noted that, by determining the yield, the first production data, and the second production data of the target production well in each production stage in the at least one production stage, and the yield splitting method corresponding to each production stage, the yield of the target production well in each production stage in the at least one production stage can be split, so as to determine the yield of each production zone of the target production well in each production stage in the at least one production stage. When the yield of each production zone of the target production well in each production stage in at least one production stage is determined, the data used is different because the yield splitting method corresponding to each production stage is different. In particular, for different production split methods, the production of the respective pay zone of the target production well within each of the at least one production phase may be determined as follows.
1) For any production stage A in at least one production stage, if the yield splitting method matched with the production stage A is a formation coefficient yield splitting method, determining the yield of each production layer of the target production well in the production stage A through the formation coefficient yield splitting method according to the yield of the production stage A and the corresponding permeability and thickness of the production stage A.
Specifically, if the yield splitting method matched with the production phase a is a formation factor yield splitting method, the yield of each production zone of the target production well in the production phase a can be determined by the following formula (1):
wherein Q isnRefers to the production of the nth pay zone of the target producer well in production phase A, Q refers to the production of the target producer well in production phase A, KnRefers to the permeability, H, of the nth productive zone of the target producing well during production phase AnRefers to the thickness of the nth pay zone of the target production well within production phase a, and n refers to the target production well having n pay zones within production phase a.
2) And if the yield splitting method matched with the production stage A is the flow coefficient yield splitting method, determining the yield of each production layer of the target production well in the production stage A through the flow coefficient yield splitting method according to the yield of the production stage A, the permeability, the thickness and the small layer crude oil viscosity corresponding to the production stage A.
Specifically, if the yield splitting method matched with the production phase a is the flow coefficient yield splitting method, the yield of each production zone of the target production well in the production phase a can be determined by the following formula (2):
Wherein Q isnRefers to the production of the nth pay zone of the target producer well in production phase A, Q refers to the production of the target producer well in production phase A, KnRefers to the permeability, H, of the nth productive zone of the target producing well during production phase AnRefers to the thickness, mu, of the nth productive layer of the target production well in production phase AnRefers to the crude oil viscosity of the nth pay zone of the target producing well in production phase a, and n refers to the target producing well having n pay zones in production phase a.
3) And if the yield splitting method matched with the production stage A is a flow coefficient yield splitting method, obtaining the permeability and thickness corresponding to each production layer in the adjacent production wells of the target production well, and determining the yield of each production layer of the target production well in the production stage A through the flow coefficient yield splitting method according to the yield of the production stage A, the well spacing between the target production well and the adjacent production wells and the permeability and thickness corresponding to each production layer in the adjacent production wells.
It should be noted that, when the flow coefficient yield splitting method is applied to determine the yield of each production zone of the target production well in the production phase a, the target production well must be a production well, and the order of the yields of the production zones of the target production wells is determined for a plurality of target production wells at the same time, before applying the method, the yield splitting method for the production zones of the production wells provided according to the embodiments of the present application has completed the yield determination for the production zones of all target production wells belonging to the water injection wells in the plurality of target production wells, and the flow coefficient yield splitting method can be used to determine the yield of the production zones for the target production wells belonging to the production wells on the basis of obtaining the yields of the production zones of all target production wells belonging to the water injection wells in the plurality of target production wells.
Specifically, if the yield splitting method matched with the production stage a is a connected coefficient yield splitting method, the water injection amount from each production zone of the multiple water injection wells adjacent to the target production well to the corresponding production zone of the target production well may be determined according to the following formula (3):
wherein Q ismIs the yield, Q, of the nth producing zone of one adjacent water injection well communicated with the target producing well and split to the target producing wellnRefers to the production zone of an adjacent water injection well communicating with the nth production zone of the target production well, KnRefers to the permeability, H, of the pay zone of an adjacent water injection well communicating with the nth pay zone of the target production wellnRefers to the thickness of the pay zone of one adjacent water injection well in communication with the nth pay zone of the target production well, and L refers to the well spacing of the pay zones of one adjacent water injection well in communication with the target production well.
After the yield of the nth production layer from one adjacent water injection well communicated with the target production well is split and divided to the target production well, if a plurality of adjacent water injection wells are communicated with the target production well, the yield of the nth production layer from each water injection well in the plurality of adjacent water injection wells communicated with the target production well to the target production well can be respectively determined through a formula (3), and the yield Q of the nth production layer from the production well adjacent to the target production well is split and divided is obtained by adding the yields of each water injection well to the target production well pn。
Then, the production of each productive zone of the target production well in production phase a is determined by the following equation (4):
wherein, PnRefers to the production of the nth pay zone of the target producer well in production phase A, P refers to the production of the target producer well in production phase A, QpnRefers to the production split of the production well adjacent to the target production well to the nth pay zone of the target production well, and n refers to the target production well having n pay zones within production phase a.
Optionally, after determining the yield of each production zone of the target production well in the production stage a by the connected coefficient yield splitting method, further setting a judgment condition for the target production well, if the sum of the determined yields of the production zones is greater than the yield of the target production well, determining the yield result of each production zone of the target production well in the production stage a by the connected coefficient yield splitting method as a final result, if the sum of the determined yields of the production zones is less than the yield of the target production well, subtracting the sum of the determined yields of the production zones by the connected coefficient yield splitting method from the yield of the target production well in the production stage a to obtain a yield difference, splitting the yield difference to each production zone of the target production well by the formation coefficient yield splitting method, summing the two split results, and finally, the yield of each production layer of the target production well in the production stage A is obtained.
4) And if the yield splitting method matched with the production stage A is a water absorption profile yield splitting method, determining the yield of each production layer of the target production well in the production stage A through the water absorption profile yield splitting method according to the yield of the production stage A and the relative water absorption corresponding to the production stage A.
Specifically, if the yield splitting method matched with the production phase a is the water absorption profile yield splitting method, the yield of each production zone of the target production well in the production phase a can be determined by the following formula (5):
Qn=Qηn(5)
wherein Q isnRefers to the production of the nth pay zone of the target producing well in production phase A, Q refers to the production of the target producing well in production phase A, etanRefers to the relative water uptake of the nth pay zone of the target production well in production phase a, and n refers to the target production well having n pay zones in production phase a.
It should be noted that, when determining the yields of the production zones of the target production well in each of the at least one production stage according to the method of step 4073, if the difference between the determined yields of the production zones of the target production well in the production stage a and the actual yield obtained by monitoring the yields of the production zones of the target production well in the production stage a by a technician is greater than a preset value, after step 4073, weights may be further set for the production zones of the target production well in the production stage a by using an expert weight yield split method, so as to correct the yields of the production zones of the target production well in the production stage a, so that the determined yields of the production zones of the target production well in the production stage a better conform to the actual production situation. For example, the preset value is 20m 3Determining the yield of the K1 layer of the target production well in the production stage A to be 100m according to the water absorption profile yield splitting method3The actual production of the target well monitored by the technician for the production of K1 layer in production phase A is 130m3If the difference between the two is greater than the preset value, the target production well can be changed in the production stage AThe weight of the K1 layer, and then the yield of the K1 layer of the target production well in the production phase a is adjusted to be within a preset value of the difference from the actual yield.
It should be noted that the weight set in the expert weight yield split method may be obtained by user input, or may be obtained by sending from other devices, or may be determined according to the actual yield obtained by monitoring the yield of each production zone of the target production well in the production phase a. For example, for a target production well having five pay zones (k1, k2, k4, k5, g1) in total within production phase A, monitoring the five pay zones results in actual production rates (k 1: 130 m)3、k2:50m3、k4:40m3、k5:80m3、g1:70m3) Then the weights can be set to (k 1: 0.35, k2:0.14, k4:0.11, k 5: 0.21, g 1: 0.19), then based on the weights, the production of each pay zone of the target production well within production phase a can be determined.
It should be noted that the weight of the production zone of the target production well in the production phase a, the monitored actual production volume, and the weight of each production zone set according to the expert weight yield splitting method are exemplary data in this application, and do not constitute specific limitations on these data.
Step 4074: and correspondingly adding the yields of all the production layers of the target production well in at least one production stage to obtain the yield of each production layer of the target production well in the production process.
It should be noted that, after the yields of the production zones of the target production well in at least one production phase are determined, the yields of the same production zone of the target production well in different production phases may be added to obtain the historical yields of the same production zone of the target production well in the production process, and further obtain the yields of the production zones of the target production well in the production process. And the production of each production layer of all the production wells in one reservoir in the production process is determined, so that the development utilization condition of the reservoir can be obtained, and further, a development scheme of the reservoir in a certain period in the future can be formulated according to the development utilization condition of the reservoir.
Specifically, when the production of each pay zone of the target production well in at least one production phase is added, the production having the same pay zone number in different production phases is added. For example, the production process of the target production well is divided into a production phase A and a production phase B, wherein the production layer number of the production phase A and the yield of each determined production layer are (k 1: 1300 m)3、k2:500m3、k4:400m3、k5:800m3、g1:700m3) The number of the production zone of the production stage B and the yield of each determined production zone are (k 1: 1000m3、k2:550m3、k4:460m3、k5:840m3) Then it can be determined that the total production of k1 production zone is 2300m in the production process of the target production well3Total yield of k2 pay zone 1050m3Total yield of 860m of k4 productive layer3Total yield of k5 production zone was 1640m3Total yield of 700m for g1 production zone3. It should be noted that the production stages of the target production well, the production zones of the respective production stages and the determined production zones are exemplary data in the embodiment of the present application, and do not constitute specific limitations on the data.
The embodiment of the application is applied to a yield splitting system, and when the yield of a production zone in a production well is determined, the production process of a target production well can be rapidly split according to the obtained production zone information and first production data of the target production well corresponding to different production times in the production process, a yield splitting method matched with the type of the production stage is selected according to the type of the production stage corresponding to at least one split production stage, and then the yield of each production stage is split according to the selected yield splitting method of each production stage in the at least one production stage and the yields, the first production data and/or the second production data in a plurality of production periods in the corresponding production stage, so that the yields of all production zones of the target production well are obtained. In the embodiment of the application, the yield splitting system divides and matches the production stages of the production well with the most appropriate yield splitting method according to the production zone information and the first production data of the production well corresponding to different production times in the production process, so that the influence of human factors on the selection of the yield splitting method is avoided, and the accuracy of matching each production stage in the production well with the yield splitting method is improved.
In addition, the production well is divided into different production stages, and the yield of the corresponding production stage is split to each production zone according to the most suitable yield splitting method for each production stage, so that the problem that the determined result deviates from the actual yield due to the fact that the yield splitting method is only used for splitting the yield of all the production stages of the target production well in the related technology is solved, and compared with the related technology, the accuracy of the yield result of the production zone in the production well is improved.
Fig. 5 is a schematic structural diagram of a production determining apparatus for a production zone in a production well according to an embodiment of the present disclosure. Referring to fig. 5, the apparatus includes:
a first obtaining module 501, configured to obtain yields of a target production well in multiple production cycles in a production process, and production zone information, first production data, and second production data corresponding to different production times in the production process; the first production data comprises the viscosity and the relative water absorption of crude oil corresponding to each productive layer in the target production well and the communication date of the target production well and the adjacent production well, and the second production data comprises the permeability and the thickness corresponding to each productive layer in the target production well and the well spacing between the target production well and the adjacent production well.
The dividing module 502 divides the production process of the target production well according to the production zone information and the first production data corresponding to different production times, so as to obtain at least one production stage and a stage type of each production stage.
The second obtaining module 503 is configured to obtain the yield splitting method matched with each production stage in the at least one production stage from the stored correspondence between the stage type and the yield splitting method.
And a calculating module 504, configured to calculate, according to the at least one production phase, the yields in the multiple production cycles, and the first production data and/or the second production data corresponding to different production times, the yields of the production zones of the target production well in the production process by using a yield splitting method matched with each production phase in the at least one production phase.
Optionally, the dividing module includes:
the first determining unit is used for determining production stage division nodes of the production process of the target production well according to the production zone information and the first production data corresponding to different production times;
the dividing unit is used for dividing nodes according to production stages and dividing the production process of the target production well to obtain at least one production stage;
A second determining unit configured to determine first production data corresponding to each of the at least one production phase from the first production data corresponding to different production times;
and the third determining unit is used for determining the phase type of each production phase according to the first production data corresponding to each production phase.
Optionally, the first determining unit includes:
the first determining subunit is used for determining the production well type of the target production well, wherein the production well type comprises a water injection well and a production well;
the second determining subunit is used for determining node division parameters according to the type of the production well, and the production zone information and the first production data corresponding to different production times;
and the third determining subunit is used for determining the production stage division nodes of the production process of the target production well according to the change conditions of the node division parameters.
Optionally, the second determining subunit is specifically configured to:
if the type of the production well is a water injection well, determining production zone information corresponding to different production time, and crude oil viscosity and relative water absorption corresponding to each production zone in the target production well as node division parameters;
and if the type of the production well is a production well, determining the information of the production zones corresponding to different production times, the crude oil viscosity and the relative water absorption corresponding to each production zone in the target production well and the communication date of the target production well and the adjacent production wells as node division parameters.
Optionally, the third determining subunit is specifically configured to:
detecting whether each parameter in the node division parameters changes along with time;
and if any one of the node division parameters changes along with time, determining the change time of the changed parameter as a production stage division node of the production process of the target production well.
Optionally, the third determining unit is specifically configured to:
for any production stage A in at least one production stage, if the crude oil viscosity and the relative water absorption corresponding to the production stage A are both zero and the communication date between the target production well and the adjacent production well is both null, determining that the stage type of the production stage A is a formation coefficient production stage;
if the relative water absorption corresponding to the production stage A is zero but the corresponding crude oil viscosity is not zero, and the communication date of the target production well and the adjacent production well is null, determining that the stage type of the production stage A is a flow coefficient production stage;
if the relative water absorption corresponding to the production stage A is zero and the communication date between the target production well and the adjacent production well is not null, determining that the stage type of the production stage A is a communication coefficient production stage;
and if the relative water absorption amount corresponding to the production stage A is not zero, determining the stage type of the production stage A as a water absorption profile production stage.
Optionally, the stage type and yield splitting method includes a plurality of stage types and yield splitting methods respectively corresponding to the plurality of stage types, and the plurality of stage types include a formation coefficient production stage, a flow coefficient production stage, a communication coefficient production stage and a water absorption profile production stage;
the yield splitting method corresponding to the formation coefficient production stage is a formation coefficient yield splitting method, the splitting method corresponding to the flow coefficient production stage is a flow coefficient yield splitting method, the splitting method corresponding to the communication coefficient production stage is a communication coefficient yield splitting method, and the splitting method corresponding to the water absorption profile production stage is a water absorption profile yield splitting method.
Optionally, the computing module comprises:
a fourth determining unit for determining the production volume of each of the at least one production phase according to the at least one production phase and the production volumes in the plurality of production cycles;
a fifth determining unit, configured to determine first production data corresponding to each of the at least one production phase according to the at least one production phase and the first production data corresponding to different production times, and/or determine second production data corresponding to each of the at least one production phase according to the at least one production phase and the second production data corresponding to different production times;
A sixth determining unit, configured to determine, according to the yield of each of the at least one production phase and the first production data and/or the second production data corresponding to each of the at least one production phase, the yield of each production zone of the target production well in each of the at least one production phase through a yield splitting method matched with each of the at least one production phase;
and the summing unit is used for correspondingly summing the yield of each production zone of the target production well in at least one production stage to obtain the yield of each production zone of the target production well in the production process.
Optionally, the sixth determining unit is specifically configured to:
for any production stage A in at least one production stage, if the yield splitting method matched with the production stage A is a formation coefficient yield splitting method, determining the yield of each production layer of the target production well in the production stage A through the formation coefficient yield splitting method according to the yield of the production stage A and the corresponding permeability and thickness of the production stage A;
if the yield splitting method matched with the production stage A is a flow coefficient yield splitting method, determining the yield of each production layer of the target production well in the production stage A through the flow coefficient yield splitting method according to the yield of the production stage A, the permeability, the thickness and the small layer crude oil viscosity corresponding to the production stage A;
If the yield splitting method matched with the production stage A is a flow coefficient yield splitting method, obtaining the permeability and thickness corresponding to each production layer in the adjacent production wells of the target production well, and determining the yield of each production layer of the target production well in the production stage A through the flow coefficient yield splitting method according to the yield of the production stage A, the well spacing between the target production well and the adjacent production wells and the permeability and thickness corresponding to each production layer in the adjacent production wells;
and if the yield splitting method matched with the production stage A is a water absorption profile yield splitting method, determining the yield of each production layer of the target production well in the production stage A through the water absorption profile yield splitting method according to the yield of the production stage A and the relative water absorption corresponding to the production stage A.
The embodiment of the application is applied to a yield splitting system, and when the yield of a production zone in a production well is determined, the production process of a target production well can be rapidly split according to the obtained production zone information and first production data of the target production well corresponding to different production times in the production process, a yield splitting method matched with the type of the production stage is selected according to the type of the production stage corresponding to at least one split production stage, and then the yield of each production stage is split according to the selected yield splitting method of each production stage in the at least one production stage and the yields, the first production data and/or the second production data in a plurality of production periods in the corresponding production stage, so that the yields of all production zones of the target production well are obtained. In the embodiment of the application, the yield splitting system divides and matches the production stages of the production well with the most appropriate yield splitting method according to the production zone information and the first production data of the production well corresponding to different production times in the production process, so that the influence of human factors on the selection of the yield splitting method is avoided, and the accuracy of matching each production stage in the production well with the yield splitting method is improved. In addition, the production well is divided into different production stages, and the yield of the corresponding production stage is split to each production zone according to the most suitable yield splitting method for each production stage, so that the problem that the determined result deviates from the actual yield due to the fact that the yield splitting method is only used for splitting the yield of all the production stages of the target production well in the related technology is solved, and compared with the related technology, the accuracy of the yield result of the production zone in the production well is improved.
It should be noted that: in the above embodiment, when determining the production of the production zone in the production well, the production determination apparatus for the production zone in the production well is only illustrated by dividing the functional modules, and in practical applications, the function distribution may be performed by different functional modules according to needs, that is, the internal structure of the apparatus is divided into different functional modules, so as to perform all or part of the functions described above. In addition, the yield determination device for the production zone in the production well provided by the above embodiment and the yield determination method for the production zone in the production well belong to the same concept, and the specific implementation process thereof is described in the method embodiment and is not described herein again.
Fig. 6 is a schematic structural diagram of a terminal 600 according to an embodiment of the present application. The terminal 600 may be: a smart phone, a tablet computer, an MP3 player (Moving Picture Experts Group Audio Layer III, motion video Experts compression standard Audio Layer 3), an MP4 player (Moving Picture Experts Group Audio Layer IV, motion video Experts compression standard Audio Layer 4), a notebook computer, or a desktop computer. The terminal 600 may also be referred to by other names such as user equipment, portable terminal, laptop terminal, desktop terminal, etc.
In general, the terminal 600 includes: a processor 601 and a memory 602.
The processor 601 may include one or more processing cores, such as a 4-core processor, an 8-core processor, and so on. The processor 601 may be implemented in at least one hardware form of a DSP (Digital Signal Processing), an FPGA (Field-Programmable Gate Array), and a PLA (Programmable Logic Array). The processor 601 may also include a main processor and a coprocessor, where the main processor is a processor for processing data in an awake state, and is also called a Central Processing Unit (CPU); a coprocessor is a low power processor for processing data in a standby state. In some embodiments, the processor 601 may be integrated with a GPU (Graphics Processing Unit), which is responsible for rendering and drawing the content required to be displayed on the display screen. In some embodiments, processor 601 may also include an AI (Artificial Intelligence) processor for processing computational operations related to machine learning.
The memory 602 may include one or more computer-readable storage media, which may be non-transitory. The memory 602 may also include high-speed random access memory, as well as non-volatile memory, such as one or more magnetic disk storage devices, flash memory storage devices. In some embodiments, a non-transitory computer readable storage medium in memory 602 is used to store at least one instruction for execution by processor 601 to implement a method for determining production from a pay zone in a production well as provided by method embodiments herein.
In some embodiments, the terminal 600 may further optionally include: a peripheral interface 603 and at least one peripheral. The processor 601, memory 602, and peripheral interface 603 may be connected by buses or signal lines. Various peripheral devices may be connected to the peripheral interface 603 via a bus, signal line, or circuit board. Specifically, the peripheral device includes: at least one of a radio frequency circuit 604, a touch screen display 604, a camera 606, an audio circuit 607, a positioning component 608, and a power supply 609.
The peripheral interface 603 may be used to connect at least one peripheral related to I/O (Input/Output) to the processor 601 and the memory 602. In some embodiments, the processor 601, memory 602, and peripheral interface 603 are integrated on the same chip or circuit board; in some other embodiments, any one or two of the processor 601, the memory 602, and the peripheral interface 603 may be implemented on a separate chip or circuit board, which is not limited in this embodiment.
The Radio Frequency circuit 604 is used for receiving and transmitting RF (Radio Frequency) signals, also called electromagnetic signals. The radio frequency circuitry 604 communicates with communication networks and other communication devices via electromagnetic signals. The rf circuit 604 converts an electrical signal into an electromagnetic signal to transmit, or converts a received electromagnetic signal into an electrical signal. Optionally, the radio frequency circuit 604 comprises: an antenna system, an RF transceiver, one or more amplifiers, a tuner, an oscillator, a digital signal processor, a codec chipset, a subscriber identity module card, and so forth. The radio frequency circuitry 604 may communicate with other terminals via at least one wireless communication protocol. The wireless communication protocols include, but are not limited to: metropolitan area networks, various generation mobile communication networks (2G, 3G, 4G, and 4G), Wireless local area networks, and/or WiFi (Wireless Fidelity) networks. In some embodiments, the rf circuit 604 may further include NFC (Near Field Communication) related circuits, which are not limited in this application.
The display screen 604 is used to display a UI (User Interface). The UI may include graphics, text, icons, video, and any combination thereof. When the display screen 605 is a touch display screen, the display screen 605 also has the ability to capture touch signals on or over the surface of the display screen 605. The touch signal may be input to the processor 601 as a control signal for processing. At this point, the display 605 may also be used to provide virtual buttons and/or a virtual keyboard, also referred to as soft buttons and/or a soft keyboard. In some embodiments, the display 605 may be one, providing the front panel of the terminal 600; in other embodiments, the display 605 may be at least two, respectively disposed on different surfaces of the terminal 600 or in a folded design; in still other embodiments, the display 605 may be a flexible display disposed on a curved surface or on a folded surface of the terminal 600. Even more, the display 605 may be arranged in a non-rectangular irregular pattern, i.e., a shaped screen. The Display 605 may be made of LCD (liquid crystal Display), OLED (Organic Light-Emitting Diode), and the like.
The camera assembly 606 is used to capture images or video. Optionally, camera assembly 606 includes a front camera and a rear camera. Generally, a front camera is disposed at a front panel of the terminal, and a rear camera is disposed at a rear surface of the terminal. In some embodiments, the number of the rear cameras is at least two, and each rear camera is any one of a main camera, a depth-of-field camera, a wide-angle camera and a telephoto camera, so that the main camera and the depth-of-field camera are fused to realize a background blurring function, and the main camera and the wide-angle camera are fused to realize panoramic shooting and VR (Virtual Reality) shooting functions or other fusion shooting functions. In some embodiments, camera assembly 606 may also include a flash. The flash lamp can be a monochrome temperature flash lamp or a bicolor temperature flash lamp. The double-color-temperature flash lamp is a combination of a warm-light flash lamp and a cold-light flash lamp, and can be used for light compensation at different color temperatures.
The positioning component 608 is used to locate the current geographic location of the terminal 600 to implement navigation or LBS (location based Service). The positioning component 608 can be a positioning component based on the GPS (global positioning System) in the united states, the beidou System in china, the graves System in russia, or the galileo System in the european union.
In some embodiments, the terminal 600 also includes one or more sensors 610. The one or more sensors 610 include, but are not limited to: acceleration sensor 611, gyro sensor 612, pressure sensor 613, fingerprint sensor 614, optical sensor 615, and proximity sensor 616.
The acceleration sensor 611 may detect the magnitude of acceleration in three coordinate axes of the coordinate system established with the terminal 600. For example, the acceleration sensor 611 may be used to detect components of the gravitational acceleration in three coordinate axes. The processor 601 may control the touch screen display 605 to display the user interface in a landscape view or a portrait view according to the gravitational acceleration signal collected by the acceleration sensor 611. The acceleration sensor 611 may also be used for acquisition of motion data of a game or a user.
The gyro sensor 612 may detect a body direction and a rotation angle of the terminal 600, and the gyro sensor 612 and the acceleration sensor 611 may cooperate to acquire a 3D motion of the user on the terminal 600. The processor 601 may implement the following functions according to the data collected by the gyro sensor 612: motion sensing (such as changing the UI according to a user's tilting operation), image stabilization at the time of photographing, game control, and inertial navigation.
The pressure sensor 613 may be disposed on a side frame of the terminal 600 and/or on a lower layer of the touch display screen 605. When the pressure sensor 613 is disposed on the side frame of the terminal 600, a user's holding signal of the terminal 600 can be detected, and the processor 601 performs left-right hand recognition or shortcut operation according to the holding signal collected by the pressure sensor 613. When the pressure sensor 613 is disposed at the lower layer of the touch display screen 605, the processor 601 controls the operability control on the UI interface according to the pressure operation of the user on the touch display screen 605. The operability control comprises at least one of a button control, a scroll bar control, an icon control and a menu control.
The fingerprint sensor 614 is used for collecting a fingerprint of a user, and the processor 601 identifies the identity of the user according to the fingerprint collected by the fingerprint sensor 614, or the fingerprint sensor 614 identifies the identity of the user according to the collected fingerprint. Upon identifying that the user's identity is a trusted identity, the processor 601 authorizes the user to perform relevant sensitive operations including unlocking the screen, viewing encrypted information, downloading software, paying, and changing settings, etc. The fingerprint sensor 614 may be disposed on the front, back, or side of the terminal 600. When a physical button or vendor Logo is provided on the terminal 600, the fingerprint sensor 614 may be integrated with the physical button or vendor Logo.
The optical sensor 615 is used to collect the ambient light intensity. In one embodiment, processor 601 may control the display brightness of touch display 605 based on the ambient light intensity collected by optical sensor 615. Specifically, when the ambient light intensity is high, the display brightness of the touch display screen 605 is increased; when the ambient light intensity is low, the display brightness of the touch display screen 605 is turned down. In another embodiment, the processor 601 may also dynamically adjust the shooting parameters of the camera assembly 606 according to the ambient light intensity collected by the optical sensor 615.
A proximity sensor 616, also known as a distance sensor, is typically disposed on the front panel of the terminal 600. The proximity sensor 616 is used to collect the distance between the user and the front surface of the terminal 600. In one embodiment, when the proximity sensor 616 detects that the distance between the user and the front surface of the terminal 600 gradually decreases, the processor 601 controls the touch display 605 to switch from the bright screen state to the dark screen state; when the proximity sensor 616 detects that the distance between the user and the front surface of the terminal 600 gradually becomes larger, the processor 601 controls the touch display 605 to switch from the breath screen state to the bright screen state.
That is, not only is the present application embodiment provide a terminal including a processor and a memory for storing executable instructions of the processor, wherein the processor is configured to execute the method in the embodiment shown in fig. 3 or fig. 4, but also the present application embodiment provides a computer readable storage medium having a computer program stored therein, and the computer program can implement the method for determining the production zone production rate in the production well in the embodiment shown in fig. 3 or fig. 4 when being executed by the processor.
Those skilled in the art will appreciate that the configuration shown in fig. 6 is not intended to be limiting of terminal 600 and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components may be used.
It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, where the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (12)
1. A method for determining production from a production zone in a production well, for use in a production split system, the method comprising:
obtaining the yield of a target production well in a plurality of production cycles in the production process, and production zone information, first production data and second production data corresponding to different production times in the production process;
Wherein the first production data comprises crude oil viscosity and relative water uptake for each pay zone in the target production well and communication date of the target production well with an adjacent production well, and the second production data comprises permeability and thickness for each pay zone in the target production well and well spacing of the target production well from an adjacent production well;
dividing the production process of the target production well according to the production zone information and the first production data corresponding to different production times to obtain at least one production stage and the stage type of each production stage;
obtaining an output splitting method matched with each production stage in the at least one production stage from the stored corresponding relation between the stage type and the output splitting method;
and calculating the yield of each production layer of the target production well in the production process by a yield splitting method matched with each production stage in the at least one production stage according to the at least one production stage, the yields in the plurality of production periods and the first production data and/or the second production data corresponding to different production times.
2. The method of claim 1, wherein the dividing the production process of the target production well based on the first production data and the production zone information corresponding to different production times to obtain at least one production phase and a phase type for each production phase comprises:
determining production stage division nodes of the production process of the target production well according to the production zone information and the first production data corresponding to different production times;
dividing the production process of the target production well according to the production stage division nodes to obtain at least one production stage;
determining first production data corresponding to each of the at least one production phase from first production data corresponding to different production times;
and determining the stage type of each production stage according to the first production data corresponding to each production stage.
3. The method of claim 2, wherein determining the production staging nodes for the production process for the target production well based on the first production data and the production zone information corresponding to different production times comprises:
determining a production well type of the target production well, wherein the production well type comprises a water injection well and a production well;
Determining node division parameters according to the type of the production well, the production zone information corresponding to different production time and first production data;
and determining the production stage division nodes of the production process of the target production well according to the change condition of the node division parameters.
4. The method of claim 3, wherein determining node partitioning parameters from the production well type and the production zone information and first production data corresponding to different production times comprises:
if the production well is a water injection well, determining production zone information corresponding to different production time, and crude oil viscosity and relative water absorption corresponding to each production zone in the target production well as the node division parameters;
and if the type of the production well is a production well, determining production zone information corresponding to different production time, crude oil viscosity and relative water absorption corresponding to each production zone in the target production well, and communication date of the target production well and an adjacent production well as the node division parameters.
5. The method of claim 3, wherein determining production staging nodes for the production run of the target production well based on changes in the node staging parameters comprises:
Detecting whether each of the node division parameters changes with time;
and if any one of the node division parameters changes along with time, determining the change time of the changed parameter as a production stage division node of the production process of the target production well.
6. The method of claim 2, wherein determining the phase type for each production phase based on the first production data corresponding to each production phase comprises:
for any production stage A in the at least one production stage, if the viscosity and the relative water absorption of the crude oil corresponding to the production stage A are both zero and the communication date of the target production well and the adjacent production well is both null, determining that the stage type of the production stage A is a formation coefficient production stage;
if the relative water absorption corresponding to the production stage A is zero but the corresponding crude oil viscosity is not zero, and the communication date of the target production well and the adjacent production well is a null value, determining that the stage type of the production stage A is a flow coefficient production stage;
if the relative water absorption corresponding to the production stage A is zero and the communication date of the target production well and the adjacent production well is not null, determining that the stage type of the production stage A is a communication coefficient production stage;
And if the relative water absorption amount corresponding to the production stage A is not zero, determining that the stage type of the production stage A is a water absorption profile production stage.
7. The method of claim 1, wherein the stage type and yield splitting method comprises a plurality of stage types and yield splitting methods respectively corresponding to the plurality of stage types, the plurality of stage types comprising a formation coefficient production stage, a flow coefficient production stage, a connectivity coefficient production stage, and a water absorption profile production stage;
the yield splitting method corresponding to the formation coefficient production stage is a formation coefficient yield splitting method, the splitting method corresponding to the flow coefficient production stage is a flow coefficient yield splitting method, the splitting method corresponding to the communication coefficient production stage is a communication coefficient yield splitting method, and the splitting method corresponding to the water absorption profile production stage is a water absorption profile yield splitting method.
8. The method of claim 7, wherein determining the production of each production zone of the target production well in the production process based on the at least one production phase, the production over the plurality of production cycles, the first production data and/or the second production data corresponding to different production times, and the yield split method matched to each of the at least one production phase comprises:
Determining a production volume for each of the at least one production phase based on the at least one production phase and the production volumes over the plurality of production cycles;
determining first production data corresponding to each of the at least one production phase according to the at least one production phase and first production data corresponding to different production times, and/or determining second production data corresponding to each of the at least one production phase according to the at least one production phase and second production data corresponding to different production times;
determining the yield of each production layer of the target production well in each production stage in the at least one production stage according to the yield of each production stage in the at least one production stage and the corresponding first production data and/or second production data of each production stage in the at least one production stage by a yield splitting method matched with each production stage in the at least one production stage;
and correspondingly adding the yields of all the production layers of the target production well in the at least one production stage to obtain the yield of each production layer of the target production well in the production process.
9. The method of claim 8, wherein determining the production volumes of the production zones of the target production well within each of the at least one production phases by a yield splitting method matched to each of the at least one production phases based on the production volumes of each of the at least one production phases and the corresponding first and/or second production data of each of the at least one production phases comprises:
for any production stage A in the at least one production stage, if the yield splitting method matched with the production stage A is a formation coefficient yield splitting method, determining the yield of each production layer of the target production well in the production stage A through the formation coefficient yield splitting method according to the yield of the production stage A and the corresponding permeability and thickness of the production stage A;
if the yield splitting method matched with the production stage A is a flow coefficient yield splitting method, determining the yield of each production layer of the target production well in the production stage A through the flow coefficient yield splitting method according to the yield of the production stage A, and the permeability, the thickness and the small layer crude oil viscosity corresponding to the production stage A;
If the yield splitting method matched with the production stage A is a flow coefficient yield splitting method, obtaining the permeability and thickness corresponding to each production layer in adjacent production wells of the target production well, and determining the yield of each production layer of the target production well in the production stage A through the flow coefficient yield splitting method according to the yield of the production stage A, the well spacing between the target production well and the adjacent production wells and the permeability and thickness corresponding to each production layer in the adjacent production wells;
and if the yield splitting method matched with the production stage A is a water absorption profile yield splitting method, determining the yield of each production layer of the target production well in the production stage A through the water absorption profile yield splitting method according to the yield of the production stage A and the relative water absorption corresponding to the production stage A.
10. A production zone production determination apparatus for a production well, for use in a production split system, the apparatus comprising:
the system comprises a first acquisition module, a second acquisition module and a third acquisition module, wherein the first acquisition module is used for acquiring the yield of a target production well in a plurality of production cycles in the production process, and the production zone information, the first production data and the second production data which correspond to different production time in the production process;
Wherein the first production data comprises crude oil viscosity and relative water uptake for each pay zone in the target production well and communication date of the target production well with an adjacent production well, and the second production data comprises permeability and thickness for each pay zone in the target production well and well spacing of the target production well from an adjacent production well;
the dividing module is used for dividing the production process of the target production well according to the production zone information and the first production data corresponding to different production times to obtain at least one production stage and the stage type of each production stage;
the second acquisition module is used for acquiring the yield splitting method matched with each production stage in the at least one production stage from the stored corresponding relation between the stage type and the yield splitting method;
and the calculation module is used for calculating the yield of each production layer of the target production well in the production process through a yield splitting method matched with each production stage in the at least one production stage according to the at least one production stage, the yields in the plurality of production periods and the first production data and/or the second production data corresponding to different production times.
11. An apparatus for determining production from a producing formation in a producing well, the apparatus comprising:
a processor and a memory for storing processor-executable instructions;
wherein the processor is configured to perform the method of any one of claims 1-9.
12. A computer-readable storage medium, in which a computer program is stored which, when being executed by a processor, carries out the method of any one of claims 1 to 9.
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