CN115018227A

CN115018227A - Method and device for determining oilfield modification production mode and computer storage medium

Info

Publication number: CN115018227A
Application number: CN202110240560.4A
Authority: CN
Inventors: 李炼民; 窦松江; 石德佩; 翟光华; 冯国杰; 李涛; 乐涛涛; 江艳平
Original assignee: Petrochina Co Ltd
Current assignee: Petrochina Co Ltd
Priority date: 2021-03-04
Filing date: 2021-03-04
Publication date: 2022-09-06

Abstract

The embodiment of the application discloses a method and a device for determining an oilfield modification production mode and a computer storage medium, and belongs to the technical field of oil gas. The method comprises the following steps: the method comprises the steps of obtaining an insensitive parameter corresponding to each well group in a plurality of well groups in a target oil field, wherein the insensitive parameter corresponding to each well group is used for describing the modification difficulty of the corresponding well group; determining a target assignment number set corresponding to the plurality of well groups, wherein the target assignment number set is an assignment number set which enables the maximum parameter value of the insensitive parameters of the plurality of well groups and the annual output of a target oil field to meet a target constraint condition, a plurality of assignment numbers of the target assignment number set correspond to the plurality of well groups one by one, and any one of the assignment numbers is used for indicating the production mode of the corresponding well group; and determining the production mode of the well group indicated by the target assignment number set as the modified production mode of the target oil field. The embodiment of the application carries out modification through mutual fusion between the well groups, and a modifier is not required to be additionally added, so that the development cost of the oil field is reduced.

Description

Method and device for determining oilfield modification production mode and computer storage medium

Technical Field

The embodiment of the application relates to the technical field of oil and gas, in particular to a method and a device for determining an oilfield modification production mode and a computer storage medium.

Background

At present, the oil price change factor is more and more complicated, and the requirements on the production level and the economic benefit of the oil field are higher and higher. Therefore, the current production mode of the oil field needs to be further improved so as to improve the economic benefit.

The oil field comprises a single-source oil field and a multi-source oil field, and for the single-source oil field, a production mode of 'good block first delivery' or a 'full life cycle' production mode of increasing the accumulated oil production in the life cycle to realize the maximum benefit can be adopted. For a multi-source oil field, because the existing production mode considers that the interaction of all factors is less, the ground construction generally needs to adopt conveying modes such as heat preservation conveying, additive modification conveying, sequential conveying and the like. For multi-source oil fields, because a certain amount of thin oil exists in a region, the most ideal mode is to utilize the thin oil in the region for modifying and conveying crude oil.

However, when crude oil is modified by using thin oil, the thin oil source is required to be fully fused, effective modification cannot be carried out if the thin oil is insufficiently fused, and the production capacity and construction cost are greatly increased by externally inputting the thin oil. Meanwhile, the multi-source oil field generally comprises more fault blocks, more single wells can be deployed, the difference between the productivity and the crude oil property of each single well is large, the manual determination of the oil field production mode not only increases the workload of workers, but also has large calculated amount and is easy to make mistakes, so that the modification production is uncertain, and the economic benefit of the oil field cannot be maximized.

Disclosure of Invention

The embodiment of the application provides a method and a device for determining an oilfield modification production mode and a computer storage medium, and can solve the problem of high oilfield production cost in the related technology. The technical scheme is as follows:

in one aspect, a method for determining an oilfield modification operation mode is provided, and the method comprises the following steps:

the method comprises the steps that insensitive parameters corresponding to each well group in a plurality of well groups in a target oil field are obtained, the insensitive parameters corresponding to each well group are used for describing modification difficulty of the corresponding well group, and each well group comprises a plurality of single wells;

determining a target assignment number set corresponding to the plurality of well groups, wherein the target assignment number set is an assignment number set which enables the maximum parameter value of the insensitive parameter of the plurality of well groups and the annual output of the target oilfield to meet a target constraint condition, a plurality of assignment numbers of the target assignment number set correspond to the plurality of well groups one by one, and any one of the assignment numbers is used for indicating the production mode of the corresponding well group;

and determining the operation mode of the well group indicated by the target assignment number set as the modified operation mode of the target oil field.

In some embodiments, the obtaining the insensitive parameter corresponding to each of the plurality of well groups in the target oil field includes:

dividing the target oil field according to an oil well division principle to obtain a plurality of well groups;

acquiring the mixed freezing point and the mixed viscosity of the crude oil of each well group in the plurality of well groups after mixing;

determining an insensitivity parameter for each of said well groups based on said mixed freezing point and mixed viscosity for each of said well groups.

In some embodiments, the determining a set of target assignments corresponding to the plurality of well groups comprises:

determining a plurality of assigned number sets corresponding to the plurality of well groups, wherein the assigned numbers in each assigned number set in the assigned number sets correspond to the well groups one by one;

selecting a reference set of assignments from the plurality of sets of assignments, the reference set of assignments being any set of assignments not selected from the plurality of sets of assignments;

determining the maximum parameter value of the insensitive parameters corresponding to the plurality of well groups and the annual output of the target oil field according to the production mode described by the reference assignment number set and the insensitive parameters corresponding to each well group;

when the maximum parameter value of the insensitive parameters of the plurality of well groups does not meet the target constraint condition or the annual production of the target oil field does not meet the target constraint condition, returning to the operation of selecting a reference assignment number set from the plurality of assignment number sets until the maximum parameter value of the insensitive parameters of the plurality of well groups and the annual production of the target oil field meet the target constraint condition;

determining the reference set of assignments as the target set of assignments when a maximum parameter value of the insensitive parameters for the plurality of well groups and an annual production of the target field satisfy the target constraint.

In some embodiments, after obtaining the insensitive parameter corresponding to each of the plurality of well groups in the target oil field, the method further includes:

determining the modification difficulty degree of each well group according to the parameter value of the insensitive parameter of each well group;

and determining a production mode corresponding to each well group according to the modification difficulty of each well group.

In some embodiments, the determining a production method corresponding to each well group according to the modification difficulty of each well group includes:

when the modification difficulty degree of each well group is a primary degree or a secondary degree, performing operation of determining a target assignment number set corresponding to the plurality of well groups;

and when the well groups with the modification difficulty degree of three-level degree exist in the plurality of well groups, the well groups with the modification difficulty degree of three-level degree are put into production through a heat-preservation heating conveying mode, a skin effect conveying mode and/or an additive modification conveying mode.

In another aspect, an apparatus for determining a modified production mode of an oil field is provided, the apparatus comprising:

the system comprises an acquisition module, a data processing module and a data processing module, wherein the acquisition module is used for acquiring an insensitive parameter corresponding to each well group in a plurality of well groups in a target oil field, the insensitive parameter corresponding to each well group is used for describing the modification difficulty of the corresponding well group, and each well group comprises a plurality of single wells;

a first determining module, configured to determine a target assignment number set corresponding to the multiple well groups, where the target assignment number set is an assignment number set such that a maximum parameter value of an insensitive parameter of the multiple well groups and an annual production rate of the target oilfield meet a target constraint condition, multiple assignment numbers of the target assignment number set correspond to the multiple well groups one to one, and any one of the multiple assignment numbers is used to indicate a production mode of the corresponding well group;

and the second determining module is used for determining the operation mode of the well group indicated by the target assignment number set as the modified operation mode of the target oil field.

In some embodiments, the obtaining module comprises:

the dividing submodule is used for dividing the target oil field according to an oil well dividing principle to obtain a plurality of well groups;

an obtaining submodule for obtaining a mixed freezing point and a mixed viscosity of the crude oil of each of the plurality of well groups after mixing;

and the first determining submodule is used for determining the insensitive parameter of each well group according to the mixed freezing point and the mixed viscosity of each well group.

In some embodiments, the first determining module comprises:

a second determining submodule, configured to determine multiple sets of assignment counts corresponding to the multiple well groups, where multiple assignment counts in each set of assignment counts in the multiple sets of assignment counts correspond to the multiple well groups one to one;

a selection sub-module for selecting a reference set of assignments from the plurality of sets of assignments, the reference set of assignments being any one of the plurality of sets of assignments that is not selected;

the third determining submodule is used for determining the maximum parameter value of the insensitive parameters corresponding to the plurality of well groups and the annual output of the target oil field according to the production mode described by the reference assignment number set and the insensitive parameters corresponding to each well group;

a triggering sub-module for triggering the selection sub-module to select a reference set of assignment counts from the plurality of sets of assignment counts when a maximum parameter value of the insensitive parameters of the plurality of well groups does not satisfy the target constraint condition or an annual production of the target oil field does not satisfy the target constraint condition until the maximum parameter value of the insensitive parameters of the plurality of well groups and the annual production of the target oil field satisfy the target constraint condition;

a fourth determination submodule, configured to determine the reference set of assignations as the target set of assignations when a maximum parameter value of the insensitive parameters of the plurality of well groups and an annual production of the target oilfield satisfy the target constraint.

In some embodiments, the apparatus further comprises:

the third determining module is used for determining the modification difficulty of each well group according to the parameter value of the insensitive parameter of each well group;

and the fourth determining module is used for determining the production mode corresponding to each well group according to the modification difficulty of each well group.

In some embodiments, the fourth determination module is to:

In another aspect, a computer-readable storage medium is provided, which has instructions stored thereon, and when the instructions are executed by a processor, the instructions implement any one of the steps of the method for determining an oilfield modification commissioning mode.

The beneficial effects brought by the technical scheme provided by the embodiment of the application at least comprise:

in the embodiment of the application, the modification production mode of the target oil field can be determined according to the parameter values of insensitive parameters of a plurality of well groups and whether the annual output of the target oil field meets the target constraint condition, the standard is provided for oil field modification, modification is carried out through mutual fusion of the existing well groups, and no modifier is required to be additionally added, so that the development cost of the oil field is reduced, and the oil field production and crude oil conveying efficiency are improved. Meanwhile, the worker does not need to manually calculate and determine the production mode, so that the accuracy and the efficiency of determining the production mode of the oil field are 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 flow chart of a method for determining a modified production mode of an oil field according to an embodiment of the present disclosure;

FIG. 2 is a flow chart of another method for determining a modified production mode of an oil field according to an embodiment of the present disclosure;

fig. 3 is a schematic structural diagram of an apparatus for determining an oilfield modification operation mode according to an embodiment of the present disclosure;

fig. 4 is a schematic structural diagram of an obtaining module according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of a first determining module provided in an embodiment of the present application;

FIG. 6 is a schematic structural diagram of another oilfield modification commissioning mode determination device provided in an embodiment of the present application;

fig. 7 is a schematic structural diagram of a terminal according to an embodiment of the present application.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present application clearer, the embodiments of the present application will be described in further detail below with reference to the accompanying drawings.

Before explaining the method for determining the oilfield modification commissioning mode in detail, an application scenario provided by the embodiment of the present application is explained.

The multi-source oil field refers to a multi-set oil-bearing layer system oil field formed by multi-source hydrocarbon supply in oil depression and multi-stage oil deposit, and the oil field has complex geological conditions, rich oil and gas resources and various oil product types and often contains various oil deposits such as low-pour-point oil, regular oil, high-pour-point oil and the like. For such reservoirs, production cannot be performed in a "good block first put" mode, or in a "full life cycle" mode in which the amount of oil produced during the life cycle is increased to maximize the benefit. Therefore, for multi-source oil fields, thin oil is used to realize exploitation or normal temperature transportation of oil reservoirs with higher freezing points. However, when crude oil is modified by using thin oil, the thin oil source is required to be fully fused, effective modification cannot be carried out if the thin oil is not fully fused, and the capacity construction cost is greatly increased by externally inputting the thin oil. Meanwhile, the multisource oil field generally comprises more fault blocks, more single wells can be deployed, the difference between the productivity and the crude oil property of each single well is large, the manual determination of the production mode of the oil field not only increases the workload of workers, but also has large calculated amount and is easy to make mistakes, so that the modification production is uncertain, and the economic benefit of the oil field cannot be maximized.

Based on the application scene, the embodiment of the application provides the method for determining the oilfield modification production mode, which can reduce the oilfield exploitation cost and improve the oilfield economic benefit.

Fig. 1 is a flowchart of a method for determining an oilfield modification commissioning mode according to an embodiment of the present disclosure, where the method for determining an oilfield modification commissioning mode may include the following steps:

step 101: and obtaining an insensitive parameter corresponding to each well group in a plurality of well groups in the target oil field, wherein the insensitive parameter corresponding to each well group is used for describing the modification difficulty of the corresponding well group, and each well group comprises a plurality of single wells.

Step 102: determining a target assignment number set corresponding to the plurality of well groups, wherein the target assignment number set is an assignment number set which enables the maximum parameter value of the insensitive parameter of the plurality of well groups and the annual output of the target oilfield to meet a target constraint condition, a plurality of assignment numbers of the target assignment number set correspond to the plurality of well groups one to one, and any one of the assignment numbers is used for indicating the production mode of the corresponding well group.

Step 103: and determining the operation mode of the well group indicated by the target assignment number set as the modified operation mode of the target oil field.

In some embodiments, obtaining the insensitive parameter corresponding to each well group in the plurality of well groups in the target oilfield comprises:

determining an insensitivity parameter for each well group based on the mixed freezing point and mixed viscosity for each well group.

In some embodiments, determining a set of target assignments corresponding to the plurality of well groups comprises:

determining a plurality of assignment number sets corresponding to the plurality of well groups, wherein the assignment numbers in each assignment number set in the assignment number sets correspond to the well groups one by one;

selecting a reference number set from the plurality of number sets, the reference number set being any number set of numbers not selected from the plurality of number sets;

and when the maximum parameter value of the insensitive parameters of the plurality of well groups and the annual production of the target oil field meet the target constraint condition, determining the reference assignment set as the target assignment set.

In some embodiments, after obtaining the insensitive parameter corresponding to each well group in the plurality of well groups in the target oilfield, the method further includes:

determining the modification difficulty of each well group according to the parameter value of the insensitive parameter of each well group;

In some embodiments, determining the production mode corresponding to each well group according to the modification difficulty of each well group includes:

when the modification difficulty degree of each well group is a primary degree or a secondary degree, executing operation of determining a target assignment number set corresponding to the plurality of well groups;

and when the well group with the modification difficulty degree of three levels exists in the plurality of well groups, the well group with the modification difficulty degree of three levels is put into production through a heat-preservation heating conveying mode, a skin effect conveying mode and/or an additive modification conveying mode.

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. 2 is a flowchart of a method for determining an oilfield modification commissioning manner provided in an embodiment of the present application, and this embodiment illustrates that the method for determining an oilfield modification commissioning manner is applied to a terminal, and the method for determining an oilfield modification commissioning manner may include the following steps:

step 201: the method comprises the steps that a terminal obtains an insensitive parameter corresponding to each well group in a plurality of well groups in a target oil field, the insensitive parameter corresponding to each well group is used for describing modification difficulty of the corresponding well group, and each well group comprises a plurality of single wells.

Because the insensitive parameters can describe the modification difficulty of the corresponding well group, in order to improve the exploitation efficiency of the target oil field and reduce the exploitation cost, the terminal can obtain the insensitive parameters corresponding to each well group.

As an example, the operation of the terminal acquiring the insensitive parameter corresponding to each well group in the plurality of well groups in the target oil field at least comprises the following operations: dividing a target oil field according to an oil well division principle to obtain a plurality of well groups; acquiring the mixed solidifying point and the mixed viscosity of the crude oil of each well group in a plurality of well groups after mixing; and determining an insensitivity parameter of each well group according to the mixed freezing point and the mixed viscosity of each well group.

In general, when an oil field is exploited, broken blocks or single wells which are close to each other are put into production at the same stage, the decrement rate of the oil field is considered, the production is decreased every year, and the production of 1 well group can be compensated as much as possible, so that the production of 2-4 single wells which are close to each other is considered at the same stage. Therefore, the oil well dividing principle can be that the single wells with the first preset number, which are adjacent and distributed continuously, are divided into a well group, and/or the fault blocks with the reserves larger than the preset reserves and the number of the included single wells larger than the second preset number are divided into N well groups, wherein N is a positive integer larger than or equal to 1.

It should be noted that the first preset number can be set in advance, for example, the first preset number can be 2, 3, and so on; the second predetermined number can also be set in advance, for example, the second predetermined number is 4, 6, 8, 10, etc., and the value of N is different according to the difference of the second predetermined number, for example, when the second predetermined number is 4, N may be 1 or 2, when the second predetermined number is 6, N may be 1, 2, or 3, when the second predetermined number is 10, N may be 1, 2, or 3, etc. The preset reserve can likewise be set beforehand, for example the preset reserve can be 10 tons, 20 tons, etc.

In some embodiments, the terminal is capable of acquiring the mixed freezing point and mixed viscosity of the crude oil of each of the plurality of well groups after mixing upon receiving an acquisition instruction, the acquisition instruction being capable of being triggered by a worker acting on the terminal through a specified operation, the specified operation being capable of being a click operation, a slide operation, an input operation, and the like. And when the designated operation is an input operation, the mixed freezing point and the mixed viscosity of the crude oil of each well group after mixing are input to the terminal by a worker so as to be obtained by the terminal.

As an example, for any well group in a plurality of well groups, the terminal can obtain the freezing point and viscosity of each single well in the well group, determine the mixed freezing point of the well group according to the following crude oil freezing point modification rule formula (1), and determine the mixed viscosity of the well group according to the following crude oil viscosity modification rule formula (2).

T＝X ₁ T ₁ +T ₂ X ₂ +...+X _n T _n (1)

In the above formula (1) for the modification law of the solidification point of crude oil, X is _n Is the ratio of the n single well crude oil addition amount to the total amount, T _n The freezing point of the nth single-click crude oil, and T is the mixed freezing point. In the above formula (2) for the modification rule of crude oil viscosity, μ is the mixing viscosity, μ _n Is the viscosity, mu, of the nth individual well crude oil _1/n The viscosity of n single-well crude oil after equal mass or equal volume mixing.

As an example, the operation of the terminal determining the insensitive parameter of each well group according to the mixed freezing point and the mixed viscosity of each well group at least comprises the following operations: for any well group, the terminal compares the combined congealing point for that well group to the congealing point of the crude oil for each individual well in that well group and compares the combined viscosity for that well group to the viscosity of the crude oil for each individual well in that well group; determining the mixed freezing point as an insensitive parameter when the freezing point variation value between the mixed freezing point and the freezing point of the crude oil of each single well is less than a first variation threshold value; and determining the mixed viscosity as an insensitive parameter when the viscosity change value between the mixed viscosity and the viscosity of the crude oil of each single well is less than a second change threshold value.

It should be noted that the first variation threshold and the second variation threshold can be set in advance according to requirements, for example, the first variation threshold can be 18 degrees celsius, 20 degrees celsius, 36 degrees celsius, and so on. The second variation threshold can be 9map.s, 15map.s, and so on.

As an example, the terminal can also directly determine the blended freezing point as an insensitive parameter for each of the plurality of well groups.

In some embodiments, the personnel can perform physical property tests on the crude oil in each individual well of the target oil field in advance to obtain physical property parameters of the crude oil in each individual well, such as the relative density, freezing point, wax content, asphaltene content, viscosity, and the like of the crude oil. The operator can then input the acquired physical property parameters into the terminal so that the terminal can acquire the freezing point and viscosity of each individual well.

In some embodiments, because some well groups are poor in modification effect after being mixed and hardly meet the economic conveying requirement, after the terminal acquires the insensitive parameter corresponding to each well group in a plurality of well groups in the target oil field, the modification difficulty of each well group can be determined according to the parameter value of the insensitive parameter of each well group; and determining a production mode corresponding to each well group according to the modification difficulty of each well group.

As an example, when the insensitive parameter is the mixed freezing point, for any one of the plurality of well groups, the terminal can subtract the mixed freezing point of the well group by the freezing point threshold to obtain the freezing point difference; when the freezing point difference is larger than a first sensitivity threshold value, determining that the modification difficulty degree of the well group is three-level degree; determining the modification difficulty level for the well group as a second order of magnitude when the freezing point difference is between the first sensitivity threshold and the second sensitivity threshold; when the freezing point difference is less than the second sensitivity threshold, the modification difficulty of the well group is determined to be of a first order.

It should be noted that the freezing point threshold is a freezing point value capable of reducing the transportation cost of crude oil, and the freezing point threshold can be set in advance according to requirements, for example, the freezing point threshold is 10 degrees celsius, 8 degrees celsius, 4 degrees celsius, and the like. The first sensitivity threshold and the second sensitivity threshold can be set in advance, for example, the first sensitivity threshold is 4 degrees celsius, and the second sensitivity threshold is-4 degrees celsius.

It should be further noted that, when the insensitive parameter is the mixed viscosity, the operation of determining the modification difficulty of each well group by the terminal according to the parameter value of the insensitive parameter of each well group may refer to the operation when the insensitive parameter is the mixed freezing point, which is not described in detail in the embodiment of the present application.

In some embodiments, the determining, by the terminal, the operation of the production mode corresponding to each well group according to the modification difficulty of each well group can include: when the modification difficulty degree of each well group is a primary degree or a secondary degree, the following operations of

steps

202 and 203 are performed; when a well group with the modification difficulty degree of three levels exists in a plurality of well groups, the well groups with the modification difficulty degree of three levels are put into production through a heat-preservation heating conveying mode, a skin effect conveying mode and/or an additive modification conveying mode, and the modification production mode is determined through the following operations of

steps

202 and 203 for the well groups with the residual modification difficulty degrees of one level or two levels.

Step 202: the terminal determines a target assignment number set corresponding to the plurality of well groups.

It should be noted that the target assignment number set is an assignment number set in which the maximum parameter value of the insensitive parameter of the multiple well groups and the annual output of the target oilfield satisfy a target constraint condition, a plurality of assignment numbers of the target assignment number set correspond to the multiple well groups one to one, and any one of the assignment numbers is used for indicating a production mode of the corresponding well group.

As an example, the target assignment number set can be a binary representation set, for example, the assignment number can be 0 or 1, which indicates that the well group corresponding to the assignment number is on production when the assignment number is 1, and indicates that the well group corresponding to the assignment number is not on production when the assignment number is 0.

In some embodiments, the operation of the terminal determining the target assignment number set corresponding to the plurality of well groups at least comprises the following operations: determining a plurality of assignment number sets corresponding to a plurality of well groups, wherein the plurality of assignment numbers in each assignment number set in the plurality of assignment number sets correspond to the plurality of well groups one by one; selecting a reference assignment number set from a plurality of assignment number sets, wherein the reference assignment number set is any assignment number set which is not selected from the plurality of assignment number sets; determining the maximum parameter value of the insensitive parameters corresponding to the plurality of well groups and the annual output of the target oil field according to the production mode described by the reference assignment number set and the insensitive parameters corresponding to each well group; when the maximum parameter value of the insensitive parameters of the plurality of well groups does not meet the target constraint condition or the annual output of the target oil field does not meet the target constraint condition, returning to the operation of selecting the reference assignment number set from the plurality of assignment number sets until the maximum parameter value of the insensitive parameters of the plurality of well groups and the annual output of the target oil field meet the target constraint condition; and when the maximum parameter value of the insensitive parameters of the plurality of well groups and the annual output of the target oil field meet the target constraint condition, determining the reference assignment number set as a target assignment number set.

After the crude oils of different single wells are mixed, the annual output may meet the requirements of a development scheme and may not meet the requirements, and after the crude oils of different single wells are mixed, the mixed mixture may be more difficult to develop, so that after the terminal determines a plurality of well groups, it is required to determine whether the maximum parameter value of the insensitive parameter and the annual output of the target oil field corresponding to the plurality of well groups meet the target constraint condition in different production modes. That is, the terminal can select a reference assignment number set from the multiple assignment number sets, determine the maximum parameter value of the insensitive parameter and the annual output of the target oil field corresponding to the multiple well groups according to the production mode described by the reference assignment number set and the insensitive parameter corresponding to each well group, and determine whether the maximum parameter value of the insensitive parameter and the annual output of the target oil field corresponding to the multiple well groups meet the target constraint condition.

As an example, the operation of determining, by the terminal, the maximum parameter value of the insensitive parameters corresponding to the plurality of well groups and the annual production rate of the target oil field according to the production mode described with reference to the assigned number set and the insensitive parameters corresponding to each well group at least comprises the following operations: determining the annual output after the operation of each well group according to the operation mode described by the reference assigned number set to obtain a plurality of annual outputs corresponding to the plurality of well groups; adding the annual yields to obtain the annual yield of the target oil field, wherein the annual yield can be expressed by a first formula:

and comparing the parameter values of the insensitive parameters corresponding to each well group to obtain the maximum parameter value of the insensitive parameters corresponding to the plurality of well groups.

In the first formula (3), P represents _i For the annual production of the ith well group of the plurality (n) of well groups, Q is the annual production of the target field.

As an example, the terminal can determine the annual production of each well group by the following second equation (4).

In the second formula (4), q is ₀ The initial yield of the single well begins to decrease, J is the oil extraction index, H is the effective thickness, m, Δ p is the differential pressure of production, MPa, q _i Decreasing the yield of the i-th year for a single well, D decreasing rate, t production year _r Decreasing reference year, Q _i Annual production of a single well, n ₁ Number of individual wells in any well group, P _i Annual production for the ith well group.

In some embodiments, the target constraint condition is a condition for improving the target annual production rate of the oil well and reducing the production cost of the oil well, and the terminal can set the target constraint condition in advance according to requirements, for example, after the maximum parameter value of the insensitive parameters of the plurality of well groups is multiplied by the corresponding assigned number in the reference assigned number set and the annual production rate after the corresponding each well group is put into operation, the obtained similarity between the reference freezing point and the reference threshold value is greater than or equal to the similarity threshold value, and the annual production rate of the target oil field is greater than or equal to the first production threshold value and less than the second production threshold value.

As an example, the maximum parameter value of the insensitive parameter of the plurality of well groups is multiplied by the corresponding assigned number in the reference assigned number set and the corresponding annual production after the production of each well group, and the process of the obtained reference freezing point can be expressed by the following third formula.

In the third formula (5), when the insensitive parameter of the ith well group is the least sensitive parameter (the parameter value is the largest) of the insensitive parameters corresponding to the plurality of well groups, F is defined as _i Parameter values of the insensitive parameters corresponding to the ith well group, B _i Number of assignments to indicate whether ith well group is on production, T _gm For reference to the freezing point.

It should be noted that the similarity threshold can be set in advance according to requirements, for example, the similarity threshold can be 95%, 98%, and the like.

It should also be noted that the first and second production thresholds can be set in advance, for example, the first production threshold is 0.8 times the planned annual oil production (i.e., 0.8 × Q) _s ) The second production threshold can be 1.2 times the planned annual oil production (i.e., 1.2 x Q) _s )。

Step 203: and the terminal determines the production mode of the well group indicated by the target assignment number set as the modified production mode of the target oil field.

The operation mode of the well group indicated by the target assignment number set can enable the maximum parameter value of the insensitive parameter of the plurality of well groups and the annual output of the target oil well to meet the target constraint condition, so that the annual output of the target oil well is ensured, and the operation cost is reduced.

Step 204: and the terminal prompts the production mode of the target oil field through the prompt information.

In order to enable the working personnel to know the production mode of the target oil field, the terminal can prompt the production mode of each well group in a plurality of well groups in the target oil field through prompt information.

As an example, the terminal can directly remind through prompt information in the form of text, voice, video, and the like. The prompt message can also be sent to the handheld device of the worker to prompt the worker.

In the embodiment of the application, the terminal can determine the modification production mode of the target oil field according to the parameter values of insensitive parameters of a plurality of well groups and whether the annual output of the target oil field meets the target constraint condition, so that the standard is provided for oil field modification, crude oil modification is realized by mutual fusion of the existing well groups, the property of crude oil can be kept relatively stable within a certain time under the condition of ensuring that the oil field productivity is not changed, and a modifier is not required to be additionally added, so that the development cost of the oil field is reduced, and the oil field production and crude oil conveying efficiency is improved. Meanwhile, the worker does not need to manually calculate and determine the production mode, so that the accuracy and the efficiency of determining the production mode of the oil field are improved.

Fig. 3 is a schematic structural diagram of an apparatus for determining an oilfield modification commissioning mode according to an embodiment of the present disclosure, where the apparatus for determining an oilfield modification commissioning mode may be implemented by software, hardware, or a combination of the two. The device for determining the oilfield modification production mode can comprise: an acquisition module 301, a first determination module 302, and a second determination module 303.

An obtaining module 301, configured to obtain an insensitive parameter corresponding to each well group in a plurality of well groups in a target oil field, where the insensitive parameter corresponding to each well group is used to describe the modification difficulty of the corresponding well group, and each well group includes a plurality of single wells;

a first determining module 302, configured to determine a target assignment number set corresponding to the plurality of well groups, where the target assignment number set is an assignment number set such that a maximum parameter value of an insensitive parameter of the plurality of well groups and an annual production rate of the target oilfield meet a target constraint condition, a plurality of assignment numbers of the target assignment number set correspond to the plurality of well groups one to one, and any one of the assignment numbers is used to indicate a production mode of the corresponding well group;

a second determining module 303, configured to determine a production method of the well group indicated by the target assignment number set as a modified production method of the target oil field.

In some embodiments, referring to fig. 4, the obtaining module 301 comprises:

the dividing submodule 3011 is configured to divide the target oil field according to an oil well dividing principle to obtain the plurality of well groups;

an obtaining sub-module 3012 for obtaining a mixed freezing point and a mixed viscosity of the crude oil of each of the plurality of well groups after mixing;

the first determining sub-module 3013 is configured to determine an insensitive parameter for each well group according to the mixed freezing point and the mixed viscosity of each well group.

In some embodiments, referring to fig. 5, the first determining module 302 comprises:

a second determining submodule 3021, configured to determine a plurality of sets of assignment numbers corresponding to the plurality of well groups, where a plurality of assignment numbers in each of the plurality of sets of assignment numbers correspond to the plurality of well groups one to one;

a selecting sub-module 3022, configured to select a reference set of the assignments from the plurality of sets of the assignments, where the reference set of the assignments is any unselected set of the assignments in the plurality of sets of the assignments;

a third determining submodule 3023, configured to determine a maximum parameter value of the insensitive parameters corresponding to the plurality of well groups and an annual yield of the target oil field according to the production mode described by the reference assignment number set and the insensitive parameters corresponding to each well group;

a triggering sub-module 3024, configured to, when the maximum parameter value of the insensitive parameters of the plurality of well groups does not satisfy the target constraint condition, or the annual production of the target oil field does not satisfy the target constraint condition, trigger the selecting sub-module 3022 to select a reference set of the assigned numbers from the plurality of sets of the assigned numbers until the maximum parameter value of the insensitive parameters of the plurality of well groups and the annual production of the target oil field satisfy the target constraint condition;

a fourth determining submodule 3025 configured to determine the reference set of assignations as the target set of assignations when the maximum parameter value of the insensitive parameter of the plurality of well groups and the annual production of the target field satisfy the target constraint condition.

In some embodiments, referring to fig. 6, the apparatus further comprises:

a third determining module 304, configured to determine a modification difficulty level of each well group according to a parameter value of the insensitive parameter of each well group;

a fourth determining module 305, configured to determine, according to the modification difficulty of each well group, a production mode corresponding to each well group.

In some embodiments, the fourth determination module 305 is configured to:

In the embodiment of the application, the terminal can determine the modification production mode of the target oil field according to the parameter values of insensitive parameters of a plurality of well groups and whether the annual output of the target oil field meets the target constraint condition, so that the standard is provided for oil field modification, crude oil modification is realized by mutual fusion of the existing well groups, the property of crude oil can be kept relatively stable within a certain time under the condition of ensuring that the oil field productivity is not changed, and a modifier is not required to be additionally added, so that the development cost of the oil field is reduced, and the oil field production and crude oil conveying efficiency is improved. Meanwhile, due to the fact that workers do not need to manually calculate and determine the commissioning mode, accuracy and efficiency of determining the oilfield commissioning mode are improved.

It should be noted that: the determining apparatus for determining an oilfield modification operation mode provided in the foregoing embodiment is only illustrated by dividing the functional modules when determining an oilfield modification operation mode, and in practical applications, the functions may be distributed by different functional modules as needed, that is, the internal structure of the equipment is divided into different functional modules to complete all or part of the functions described above. In addition, the determining device of the oilfield modification commissioning mode provided by the embodiment and the determining method embodiment of the oilfield modification commissioning mode belong to the same concept, and the specific implementation process is detailed in the method embodiment and is not described herein again.

Fig. 7 shows a block diagram of a terminal 700 according to an exemplary embodiment of the present application. The terminal 700 may be: a smartphone, a tablet computer, a laptop computer, or a desktop computer. Terminal 700 may also be referred to by other names such as user equipment, portable terminal, laptop terminal, desktop terminal, and so on.

In general, the terminal 700 includes: a processor 701 and a memory 702.

The processor 701 may include one or more processing cores, such as a 4-core processor, an 8-core processor, and so on. The processor 701 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 701 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 701 may be integrated with a GPU (Graphics Processing Unit) which is responsible for rendering and drawing the content required to be displayed by the display screen. In some embodiments, the processor 701 may further include an AI (Artificial Intelligence) processor for processing computing operations related to machine learning.

Memory 702 may include one or more computer-readable storage media, which may be non-transitory. Memory 702 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 702 is used to store at least one instruction for execution by processor 701 to implement the method of determining an oilfield modification commissioning approach provided by method embodiments herein.

In some embodiments, the terminal 700 may further optionally include: a peripheral interface 703 and at least one peripheral. The processor 701, the memory 702, and the peripheral interface 703 may be connected by buses or signal lines. Various peripheral devices may be connected to peripheral interface 703 via a bus, signal line, or circuit board. Specifically, the peripheral device includes: at least one of a radio frequency circuit 704, a display screen 705, a camera assembly 706, an audio circuit 707, a positioning component 708, and a power source 709.

The peripheral interface 703 may be used to connect at least one peripheral related to I/O (Input/Output) to the processor 701 and the memory 702. In some embodiments, the processor 701, memory 702, and peripheral interface 703 are integrated on the same chip or circuit board; in some other embodiments, any one or two of the processor 701, the memory 702, and the peripheral interface 703 may be implemented on a separate chip or circuit board, which is not limited in this embodiment.

The Radio Frequency circuit 704 is used for receiving and transmitting RF (Radio Frequency) signals, also called electromagnetic signals. The radio frequency circuitry 704 communicates with communication networks and other communication devices via electromagnetic signals. The rf circuit 704 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 704 includes: 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 704 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 5G), Wireless local area networks, and/or WiFi (Wireless Fidelity) networks. In some embodiments, the radio frequency circuit 704 may also include NFC (Near Field Communication) related circuits, which are not limited in this application.

The display screen 705 is used to display a UI (User Interface). The UI may include graphics, text, icons, video, and any combination thereof. When the display screen 705 is a touch display screen, the display screen 705 also has the ability to capture touch signals on or over the surface of the display screen 705. The touch signal may be input to the processor 701 as a control signal for processing. At this point, the display screen 705 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 705 may be one, providing the front panel of the terminal 700; in other embodiments, the display 705 can be at least two, respectively disposed on different surfaces of the terminal 700 or in a foldable design; in other embodiments, the display 705 may be a flexible display disposed on a curved surface or on a folded surface of the terminal 700. Even more, the display 705 may be arranged in a non-rectangular irregular pattern, i.e., a shaped screen. The Display 705 may be made of LCD (Liquid Crystal Display), OLED (Organic Light-Emitting Diode), or the like.

The camera assembly 706 is used to capture images or video. Optionally, camera assembly 706 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, the main camera and the wide-angle camera are fused to realize panoramic shooting and a VR (Virtual Reality) shooting function or other fusion shooting functions. In some embodiments, camera assembly 706 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 under different color temperatures.

The audio circuitry 707 may include a microphone and a speaker. The microphone is used for collecting sound waves of a user and the environment, converting the sound waves into electric signals, and inputting the electric signals to the processor 701 for processing or inputting the electric signals to the radio frequency circuit 704 to realize voice communication. The microphones may be provided in plural numbers, respectively, at different portions of the terminal 700 for the purpose of stereo sound collection or noise reduction. The microphone may also be an array microphone or an omni-directional acquisition microphone. The speaker is used to convert electrical signals from the processor 701 or the radio frequency circuit 704 into sound waves. The loudspeaker can be a traditional film loudspeaker or a piezoelectric ceramic loudspeaker. When the speaker is a piezoelectric ceramic speaker, the speaker can be used for purposes such as converting an electric signal into a sound wave audible to a human being, or converting an electric signal into a sound wave inaudible to a human being to measure a distance. In some embodiments, the audio circuitry 707 may also include a headphone jack.

The positioning component 708 is used to locate the current geographic Location of the terminal 700 for navigation or LBS (Location Based Service). The Positioning component 708 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.

A power supply 709 is used to supply power to the various components in terminal 700. The power source 709 may be alternating current, direct current, disposable batteries, or rechargeable batteries. When power source 709 includes a rechargeable battery, the rechargeable battery may support wired or wireless charging. The rechargeable battery can also be used to support fast charge technology.

In some embodiments, terminal 700 also includes one or more sensors 710. The one or more sensors 710 include, but are not limited to: acceleration sensor 711, gyro sensor 712, pressure sensor 713, fingerprint sensor 714, optical sensor 715, and proximity sensor 716.

The acceleration sensor 711 can detect the magnitude of acceleration in three coordinate axes of a coordinate system established with the terminal 700. For example, the acceleration sensor 711 may be used to detect components of the gravitational acceleration in three coordinate axes. The processor 701 may control the display screen 705 to display the user interface in a landscape view or a portrait view according to the gravitational acceleration signal collected by the acceleration sensor 711. The acceleration sensor 711 may also be used for acquisition of motion data of a game or a user.

The gyro sensor 712 may detect a body direction and a rotation angle of the terminal 700, and the gyro sensor 712 may acquire a 3D motion of the user on the terminal 700 in cooperation with the acceleration sensor 711. From the data collected by the gyro sensor 712, the processor 701 may implement the following functions: motion sensing (such as changing the UI according to a user's tilting operation), image stabilization while shooting, game control, and inertial navigation.

Pressure sensors 713 may be disposed on a side frame of terminal 700 and/or underneath display 705. When the pressure sensor 713 is disposed on a side frame of the terminal 700, a user's grip signal on the terminal 700 may be detected, and the processor 701 performs right-left hand recognition or shortcut operation according to the grip signal collected by the pressure sensor 713. When the pressure sensor 713 is disposed at a lower layer of the display screen 705, the processor 701 controls the operability control on the UI interface according to the pressure operation of the user on the display screen 705. 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 714 is used for collecting a fingerprint of a user, and the processor 701 identifies the identity of the user according to the fingerprint collected by the fingerprint sensor 714, or the fingerprint sensor 714 identifies the identity of the user according to the collected fingerprint. When the user identity is identified as a trusted identity, the processor 701 authorizes the user to perform relevant sensitive operations, including unlocking a screen, viewing encrypted information, downloading software, paying, changing settings, and the like. Fingerprint sensor 714 may be disposed on the front, back, or side of terminal 700. When a physical button or a vendor Logo is provided on the terminal 700, the fingerprint sensor 714 may be integrated with the physical button or the vendor Logo.

The optical sensor 715 is used to collect the ambient light intensity. In one embodiment, the processor 701 may control the display brightness of the display screen 705 based on the ambient light intensity collected by the optical sensor 715. Specifically, when the ambient light intensity is high, the display brightness of the display screen 705 is increased; when the ambient light intensity is low, the display brightness of the display screen 705 is adjusted down. In another embodiment, processor 701 may also dynamically adjust the shooting parameters of camera assembly 706 based on the ambient light intensity collected by optical sensor 715.

A proximity sensor 716, also referred to as a distance sensor, is typically disposed on a front panel of the terminal 700. The proximity sensor 716 is used to collect the distance between the user and the front surface of the terminal 700. In one embodiment, when the proximity sensor 716 detects that the distance between the user and the front surface of the terminal 700 is gradually reduced, the processor 701 controls the display screen 705 to switch from a bright screen state to a dark screen state; when the proximity sensor 716 detects that the distance between the user and the front surface of the terminal 700 is gradually increased, the processor 701 controls the display 705 to switch from the breath-screen state to the bright-screen state.

Those skilled in the art will appreciate that the configuration shown in fig. 7 is not intended to be limiting of terminal 700 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.

The embodiment of the application further provides a non-transitory computer readable storage medium, and when instructions in the storage medium are executed by a processor of a terminal, the terminal can execute the method for determining the oilfield modification commissioning mode provided by the above embodiment.

The embodiment of the present application further provides a computer program product containing instructions, which when run on a terminal, causes the terminal to execute the method for determining the oilfield modification commissioning mode provided in the foregoing embodiment.

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 a preferred embodiment of the present application and should not be taken as limiting the present application, and any modifications, equivalents, improvements, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A method for determining an oilfield modification operation mode is characterized by comprising the following steps:

obtaining an insensitive parameter corresponding to each well group in a plurality of well groups in a target oil field, wherein the insensitive parameter corresponding to each well group is used for describing the modification difficulty of the corresponding well group, and each well group comprises a plurality of single wells of the oil field;

2. The method of claim 1, wherein the obtaining the insensitive parameter for each of the plurality of well groups in the target field comprises:

obtaining a mixed freezing point and a mixed viscosity of the crude oil of each well group in the plurality of well groups after mixing;

3. The method of claim 1, wherein the determining a set of target assignments for the plurality of well groups comprises:

selecting a reference set of designators from the plurality of sets of designators, the reference set of designators being any set of designators not selected from the plurality of sets of designators;

when the maximum parameter value of the insensitive parameters of the plurality of well groups does not meet the target constraint condition or the annual production of the target oil field does not meet the target constraint condition, returning to the operation of selecting a reference designator set from the plurality of designator sets until the maximum parameter value of the insensitive parameters of the plurality of well groups and the annual production of the target oil field meet the target constraint condition;

determining the reference set of assignments as the target set of assignments when the maximum parameter value of the insensitive parameters of the plurality of well groups and the annual production of the target field satisfy the target constraint.

4. The method of claim 1, wherein after obtaining the insensitive parameters corresponding to each of the plurality of well groups in the target field, further comprising:

5. The method of claim 4, wherein determining a production schedule for each well group based on the modification difficulty level for each well group comprises:

6. An apparatus for determining a modified production mode in an oil field, the apparatus comprising:

the system comprises an acquisition module, a processing module and a display module, wherein the acquisition module is used for acquiring an insensitive parameter corresponding to each well group in a plurality of well groups in a target oil field, the insensitive parameter corresponding to each well group is used for describing the modification difficulty of the corresponding well group, and each well group comprises a single well of the plurality of oil fields;

a first determining module, configured to determine a target set of assignments corresponding to the multiple well groups, where the target set of assignments is a set of assignments such that a maximum parameter value of an insensitive parameter of the multiple well groups and an annual production rate of the target oilfield meet a target constraint condition, multiple assignments of the target set of assignments are in one-to-one correspondence with the multiple well groups, and any one of the multiple assignments is used to indicate a production mode of the corresponding well group;

7. The apparatus of claim 6, wherein the acquisition module comprises:

8. The apparatus of claim 6, wherein the first determining module comprises:

a selection sub-module for selecting a reference set of assignments from the plurality of sets of assignments, the reference set of assignments being any one set of assignments not selected from the plurality of sets of assignments;

a third determining submodule, configured to determine a maximum parameter value of the insensitive parameters corresponding to the multiple well groups and an annual output of the target oil field according to the production mode described by the reference assignment number set and the insensitive parameters corresponding to each well group;

9. The apparatus of claim 6, wherein the apparatus further comprises:

and the fourth determining module is used for determining a production mode corresponding to each well group according to the modification difficulty degree of each well group.

10. The apparatus of claim 9, wherein the fourth determination module is to:

11. A computer-readable storage medium having stored thereon instructions which, when executed by a processor, carry out the steps of the method of any of the preceding claims 1 to 5.