CN118273686A - Method and device for digging and selecting well by developed dark and old-fashioned field measures - Google Patents
Method and device for digging and selecting well by developed dark and old-fashioned field measures Download PDFInfo
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- 238000005065 mining Methods 0.000 claims description 53
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Abstract
The invention discloses a method and a device for excavating and selecting a well by developed dark and old-fashioned field measures, which can be used in the field of oil and gas field exploration and development. Wherein the method comprises the following steps: selecting a submerged dark and old-fashioned field; establishing a gas reservoir geological model of an old gas field; determining a gas reservoir residual gas distribution rule of the old gas field based on a gas reservoir geological model of the old gas field; determining the potential of digging old well measures of the old gas field according to the distribution rule of residual gas in the old gas field, the evaluation result of the integrity of the old well shaft of dark and old-fashioned fields and the main control factors of low yield or well shutdown of dark and old-fashioned fields; determining the technical data of the old well measure diving process of the old gas field according to the geological features of the gas reservoir of the old gas field; determining the measure well digging position of the old gas field according to the old well measure well digging potential of the old gas field and the old well measure well digging process technical data of the dark and old-fashioned fields; and carrying out economic and risk prediction on the measure submerged well site of dark and old-fashioned fields. The invention can accurately evaluate dark and old-fashioned field digging potential and improve the digging effect and economic benefit of the old gas field measures.
Description
Technical Field
The invention relates to the technical field of oil and gas field exploration and development, in particular to a method and a device for excavating and selecting a well by means of developed dark and old-fashioned field measures.
Background
This section is intended to provide a background or context to the embodiments of the invention that are recited in the claims. The description herein is not admitted to be prior art by inclusion in this section.
Natural gas is a relatively clean energy source and is the key point of long-term development of the energy industry. Dark and old-fashioned Tian Waqian has important effects on difficult reserve and unused reserve of the disc living old gas field and realizing stable production of the old gas field.
The existing dark and old-fashioned field measure well-digging and selecting method mainly uses a single technology, and mainly uses oil reservoir measure well-digging technical results, so that the gas reservoir measure well-digging technical results are less, and a unified developed dark and old-fashioned field measure well-digging and selecting method is not formed yet.
After dark and old-fashioned fields enter the middle and later stages of development, the difficult reserve and the unused reserve are low in quality, the difficulty in use is high, and the requirements of stable production and upper production of dark and old-fashioned fields of the disc-activity old gas field are difficult to meet. Because dark and old-fashioned fields are developed for secondary development and the disc activity dark and old-fashioned fields need to be developed for the development of dark and old-fashioned field measures, the research of the current dark and old-fashioned field measure mining and well selecting method is weak, the mining effect of dark and old-fashioned field measures is poor, and the economic benefit is low.
Disclosure of Invention
The embodiment of the invention provides a developed method for excavating, diving and selecting wells of old gas field measures, which is used for accurately evaluating the excavating potential of dark and old-fashioned fields and improving the excavating effect and economic benefit of the old gas field measures, and comprises the following steps:
Selecting a submerged dark and old-fashioned field;
Determining the gas reservoir characteristics of the old gas field according to the gas reservoir data of the old gas field, determining the gas reservoir geological characteristics and geological mining directions of the old gas field according to the gas reservoir characteristics of the old gas field, and establishing a gas reservoir geological model of the old gas field according to the gas reservoir geological characteristics and geological mining directions of the old gas field;
Based on a gas reservoir geological model of the old gas field, determining a gas reservoir residual gas distribution rule of the old gas field through gas reservoir engineering research and history fitting;
Determining an old well shaft integrity evaluation result of the old gas field according to the well history data, the field investigation data and the underground operation data of the old gas field;
Determining main control factors of low yield or shut-in of the old gas field according to the gas reservoir characteristics, the well drilling and completion process and the gas production process of the old gas field;
determining an old well measure mining potential evaluation result of the old gas field according to a gas reservoir residual gas distribution rule of the old gas field, an old well shaft integrity evaluation result of dark and old-fashioned fields and a main control factor of dark and old-fashioned fields low yield or well shutdown;
determining the technical data of the old well measure diving process of the old gas field according to the geological features of the gas reservoir of the old gas field;
determining the measure well digging position of the old gas field according to the old well measure well digging potential evaluation result of the old gas field and the old well measure well digging process technical data of dark and old-fashioned fields;
and carrying out economic and risk prediction on the measure well-sinking position of the dark and old-fashioned field, selecting the measure well-sinking of the old gas field according to the economic and risk prediction result, and sequencing the selected old wells.
The embodiment of the invention also provides a developed device for excavating and selecting the well by the old gas field measures, which is used for accurately evaluating the excavating potential of dark and old-fashioned fields and improving the excavating effect and the economic benefit of the old gas field measures, and comprises the following steps:
The old gas field selection module is used for selecting a submerged dark and old-fashioned field;
The geological model building module is used for determining the gas reservoir characteristics of the old gas field according to the gas reservoir data of the old gas field, determining the gas reservoir geological characteristics and the geological submerged direction of the old gas field according to the gas reservoir characteristics of the old gas field, and building a gas reservoir geological model of the old gas field according to the gas reservoir geological characteristics and the geological submerged direction of the old gas field;
The distribution rule determining module is used for determining the gas reservoir residual gas distribution rule of the old gas field through gas reservoir engineering research and history fitting based on the gas reservoir geological model of the old gas field;
The integrity evaluation module is used for determining an old well shaft integrity evaluation result of the old gas field according to the well history data, the field investigation data and the underground operation data of the old gas field;
The main control factor determining module is used for determining main control factors of low yield or shut-in well of the old gas field according to the gas reservoir characteristics, the well drilling and completion process and the gas production process of the old gas field;
the mining potential evaluation module is used for determining mining potential evaluation results of old well measures of the old gas field according to the distribution rule of residual gas in the gas reservoir of the old gas field, the integrity evaluation result of an old well shaft of the dark and old-fashioned field and the main control factors of low yield or shut-down of the dark and old-fashioned field;
The submerged arc process determining module is used for determining the submerged arc process technical data of the old well measure of the old gas field according to the geological characteristics of the gas reservoir of the old gas field;
The well position determining module is used for determining the well position of the old gas field by the well potential of the old gas field according to the evaluation result of the well potential of the old gas field and the technical data of the well potential of the old gas field in dark and old-fashioned fields;
And dark and old-fashioned Tian Waqian a well selecting module, which is used for carrying out economic and risk prediction on the measure well-sinking position of the dark and old-fashioned field, selecting measures of the old gas field to dig the old wells according to the economic and risk prediction result, and sequencing the selected old wells.
The embodiment of the invention also provides computer equipment, which comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor, wherein the processor realizes the developed dark and old-fashioned field measure well digging and selecting method when executing the computer program.
The embodiment of the invention also provides a computer readable storage medium, wherein the computer readable storage medium stores a computer program, and the computer program realizes the developed dark and old-fashioned field measure mining well selection method when being executed by a processor.
Embodiments of the present invention also provide a computer program product comprising a computer program which, when executed by a processor, implements the developed dark and old-fashioned field approach mining well method described above.
The developed dark and old-fashioned field measure of the embodiment of the invention digs the well selecting scheme, and selects the digged old gas field; determining the gas reservoir characteristics of the old gas field according to the gas reservoir data of the old gas field, determining the gas reservoir geological characteristics and geological mining directions of the old gas field according to the gas reservoir characteristics of the old gas field, and establishing a gas reservoir geological model of the old gas field according to the gas reservoir geological characteristics and geological mining directions of the old gas field; based on a gas reservoir geological model of the old gas field, determining a gas reservoir residual gas distribution rule of the old gas field through gas reservoir engineering research and history fitting; determining an old well shaft integrity evaluation result of the old gas field according to the well history data, the field investigation data and the underground operation data of the old gas field; determining main control factors of low yield or shut-in of the old gas field according to the gas reservoir characteristics, the well drilling and completion process and the gas production process of the old gas field; determining an old well measure mining potential evaluation result of the old gas field according to a gas reservoir residual gas distribution rule of the old gas field, an old well shaft integrity evaluation result of dark and old-fashioned fields and a main control factor of dark and old-fashioned fields low yield or well shutdown; determining the technical data of the old well measure diving process of the old gas field according to the geological features of the gas reservoir of the old gas field; determining the measure well digging position of the old gas field according to the old well measure well digging potential evaluation result of the old gas field and the old well measure well digging process technical data of dark and old-fashioned fields; and carrying out economic and risk prediction on the measure well-sinking position of the dark and old-fashioned field, selecting the measure well-sinking of the old gas field according to the economic and risk prediction result, and sequencing the selected old wells. Compared with the technical scheme that the method for mining and selecting the well by means of dark and old-fashioned field measures in the prior art is weak in research, the mining effect of dark and old-fashioned field measures is poor, and the economic benefit is low, the method can accurately evaluate the mining potential of dark and old-fashioned field, and improve the mining effect and the economic benefit of old gas field measures.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. In the drawings:
FIG. 1 is a flow chart of a method of mining a potential well with dark and old-fashioned field measures developed in an embodiment of the present invention;
FIG. 2 is a schematic diagram of parameters for dark and old-fashioned field dig evaluation in an embodiment of the present invention;
FIG. 3 is a parameter diagram of an evaluation of potential of digging by old well measures of an old gas field according to an embodiment of the present invention;
FIG. 4 is a flow chart of an embodiment of a method of selecting a well by digging a well by using dark and old-fashioned field measures according to the present invention;
FIG. 5 is a schematic diagram of a well logging device with a well logging facility developed in an embodiment of the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings. The exemplary embodiments of the present invention and their descriptions herein are for the purpose of explaining the present invention, but are not to be construed as limiting the invention.
The term "and/or" is used herein to describe only one relationship, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist together, and B exists alone. In addition, the term "at least one" herein means any one of a plurality or any combination of at least two of a plurality, for example, including at least one of A, B, C, may mean including any one or more elements selected from the group consisting of A, B and C.
In the description of the present specification, the terms "comprising," "including," "having," "containing," and the like are open-ended terms, meaning including, but not limited to. The description of the reference terms "one embodiment," "a particular embodiment," "some embodiments," "for example," etc., means that a particular feature, structure, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. The order of steps involved in the embodiments is illustrative of the practice of the application, and is not limited and may be suitably modified as desired.
As mentioned previously, natural gas is a relatively clean energy source, and is a long-term development focus of the energy industry. Dark and old-fashioned Tian Waqian has important effects on difficult reserve and unused reserve of the disc living old gas field and realizing stable production of the old gas field. The existing dark and old-fashioned field measure well-digging and selecting method mainly uses a single technology, and mainly uses oil reservoir measure well-digging technical results, so that the gas reservoir measure well-digging technical results are less, and a unified developed dark and old-fashioned field measure well-digging and selecting method is not formed yet. After dark and old-fashioned fields enter the middle and later stages of development, the difficult reserve and the unused reserve are low in quality, the difficulty in use is high, and the requirements of stable production and upper production of dark and old-fashioned fields of the disc-activity old gas field are difficult to meet. Since dark and old-fashioned fields have been developed for secondary development and old disc life
The method for digging and selecting the well by the means of digging and diving in the dark and old-fashioned field needs to be developed in the gas field, the research of the current method for digging and selecting the well by the means of digging and diving in the dark and old-fashioned field is weak, the digging and diving effect of the means of digging and diving in the old gas field 5 is poor, the economic benefit is low, the effective utilization of the difficult-to-use reserves of the dark and old-fashioned field is severely restricted, and the method for digging and selecting the well by the means of digging and diving is needed to ensure the digging and diving effect of the selected well by the means of digging and diving by the means of the means is needed to be urgent.
Based on this, in an embodiment of the present invention, there is provided a method for mining a well by using developed old gas field measures, as shown in fig. 1, the method including:
step 101: selecting a submerged dark and old-fashioned field;
0 step 102: determining the gas reservoir characteristics of the old gas field according to the gas reservoir data of the old gas field, determining the gas reservoir geological characteristics and geological mining directions of the old gas field according to the gas reservoir characteristics of the old gas field, and establishing a gas reservoir geological model of the old gas field according to the gas reservoir geological characteristics and geological mining directions of the old gas field;
Step 103: based on a gas reservoir geological model of the old gas field, determining a gas reservoir residual gas distribution rule of the old gas field through gas reservoir engineering research and history fitting;
step 5, 104: determining dark and old-fashioned fields according to the well history data, the field investigation data and the downhole operation data of the old gas field
The integrity evaluation result of the old well shaft;
step 105: determining main control factors of low yield or shut-in of the old gas field according to the gas reservoir characteristics, the well drilling and completion process and the gas production process of the old gas field;
Step 106: determining the evaluation result of the potential digging of the old well measures of the old gas field according to the distribution rule of the residual gas of the gas reservoir of the old gas field and the main control factors of the old well shaft integrity evaluation result 0 of the dark and old-fashioned field and the low yield or shut-down well of the dark and old-fashioned field;
Step 107: determining the technical data of the old well measure diving process of the old gas field according to the geological features of the gas reservoir of the old gas field;
Step 108: determining the measure well digging position of the old gas field according to the old well measure well digging potential evaluation result of the old gas field and the old well measure well digging process technical data of dark and old-fashioned fields;
Step 5, 109: and carrying out economic and risk prediction on the measure well-sinking position of the dark and old-fashioned field, selecting the measure well-sinking of the old gas field according to the economic and risk prediction result, and sequencing the selected old wells.
Compared with the technical scheme that the method for mining and selecting the well by means of the dark and old-fashioned field measures in the prior art is weak in research, the mining and selecting effect of the dark and old-fashioned field measures is poor, and the economic benefit is low, the method for mining and selecting the well by means of the developed old gas field measures can accurately evaluate the mining and selecting the well by means of the dark and old-fashioned field measures, and the mining and selecting effect and the economic benefit of the old gas field measures are improved.
The steps of the method of developing dark and old-fashioned field operations to excavate the potential well, steps 101 through 109, are described in detail below by way of example.
In one embodiment, in step 101, the submerged old gas field is selected according to the source rock, reservoir conditions, preservation conditions, trapping conditions, mating conditions, reserves conditions, development conditions of the old gas field.
In practice, as shown in the parameter diagram of the evaluation of the digging of dark and old-fashioned fields in fig. 2, the digging dark and old-fashioned fields are selected according to the following formula:
P1＝PT×PC×PQ×PB×PP×PS×PK
Wherein: p1 represents the diving evaluation result of the old gas field; p T represents a hydrocarbon source rock parameter; p C represents a reservoir condition parameter; p Q denotes a save condition parameter; p B denotes a trap condition parameter; p P represents a matching condition parameter; p S denotes a reserve condition parameter; p K represents development condition parameters.
The different parameters in the formula are obtained by dividing the sum of the influence factor scores corresponding to the parameters by the number of the influence factors, and the influence factors are preset before calculation.
In one embodiment, in the step 102, the gas reservoir data of the old gas field includes: drilling data, logging data, coring data, seismic data, dynamic monitoring data, production dynamic data, well history and measure data for old gas fields.
In one embodiment, in the step 102, determining the gas reservoir characteristics of the old gas field according to the gas reservoir data of the old gas field includes: and determining the gas reservoir characteristics of the old gas field by analyzing the stratum, fracture, structure, sedimentary microphase, reservoir, gas reservoir and reserves of the old gas field according to the gas reservoir data of the old gas field.
In one embodiment, in the step 103, determining the gas reservoir residual gas distribution rule of the old gas field based on the gas reservoir geological model of the old gas field through gas reservoir engineering research and history fitting includes: based on a gas reservoir geological model of the old gas field, determining the gas reservoir residual gas distribution rule of the old gas field by analyzing geological factors, shaft factors, process factors, gas reservoir engineering evaluation data, numerical simulation data, well history analysis data, field investigation data and downhole operation data of the old gas field.
In one embodiment, in step 104, after the old well is produced for a long time, the well bore condition is greatly changed, the evaluation result of the integrity of the old well bore of the old gas field is determined according to the well history data, the field investigation data and the downhole operation data of the old gas field, and the measure mining construction condition that the old well can bear is determined according to the evaluation result.
In one embodiment, in the step 106, the old well measure mining potential evaluation result of the old gas field is determined according to the gas reservoir residual gas distribution rule of the old gas field, the old well shaft integrity evaluation result of dark and old-fashioned fields, and the main control factor of dark and old-fashioned fields low yield or shut-in well:
In specific implementation, as shown in a parameter schematic diagram of the evaluation of the potential of digging of the old well measure of the old gas field in fig. 3, the old well of the dark and old-fashioned field with the measure of digging is selected according to the following formula:
P2＝PS2×PC2×PJ×PG×PY
Wherein: p2 represents the evaluation result of the potential of the old well measure of the old gas field; p S2 represents the reserve condition parameters of the old well; p C2 represents reservoir condition parameters for old wells; p J represents an old well shaft integrity evaluation result parameter of the old gas field; p G represents main control factor parameters of low yield or shut-in well of old gas field; p Y represents parameters of the technological conditions of measure diving; wherein P S、PC、PY is determined according to the gas reservoir residual gas distribution rule of the old gas field.
The different parameters in the formula are obtained by dividing the sum of the influence factor scores corresponding to the parameters by the number of the influence factors, and the influence factors are preset before calculation.
In one embodiment, in the step 107, determining the old well measure diving process technical data of the old gas field according to the gas reservoir geological features of the old gas field may include: aiming at the geological characteristics of the old gas field, a measure diving process technology is optimized, and the existing process technology is pertinently improved according to the measure diving requirement of the old well, so that the measure diving requirement is met.
In one embodiment, in the step 108, the measure mining well position of the old gas field is determined according to the well repairing, hole supplementing, water plugging, profile control, drainage and gas production, stratum energy supplementing, production working system adjustment, reservoir reformation, sidetracking, new well encryption and edge expansion measure mining according to the old well measure mining potential evaluation result of the old gas field and the old well measure mining process technical data of dark and old-fashioned fields.
In one embodiment, in step 109, performing economic and risk prediction on the measure well site of dark and old-fashioned fields may include: predicting the sinking cost of the old well measures and the development index of yield increase, developing the economic benefit of a single well based on the single well, selecting the measures of the old gas field to dig the old well in combination with the site construction condition, and sequencing the selected old wells.
The following describes in detail the implementation flow of the method for mining a well by using dark and old-fashioned field measures:
Selecting dark and old-fashioned fields according to the hydrocarbon source rock, reservoir conditions, preservation conditions, trapping conditions, matching conditions, reserve conditions and development conditions of the old gas fields, and selecting the submerged old gas fields;
The submerged dark and old-fashioned field was selected as follows:
P1＝PT×PC×PQ×PB×PP×PS×PK
Wherein: p1 represents the diving evaluation result of the old gas field; p T represents a hydrocarbon source rock parameter; p C represents a reservoir condition parameter; p Q denotes a save condition parameter; p B denotes a trap condition parameter; p P represents a matching condition parameter; p S denotes a reserve condition parameter; p K represents development condition parameters.
The different parameters in the formula are obtained by dividing the sum of the influence factor scores corresponding to the parameters by the number of the influence factors, and the influence factors are preset before calculation.
Collecting gas reservoir data for an old gas field, comprising: drilling data, logging data, coring data, seismic data, dynamic monitoring data, production dynamic data, well history, and action data.
According to the gas reservoir data of the old gas field, evaluating dark and old-fashioned Tian Qicang the gas reservoir characteristics of the old gas field by analyzing stratum, fracture, structure, sedimentary microphase, reservoir, gas reservoir and reserves of the old gas field, determining the gas reservoir geological characteristics and geological mining direction of the old gas field according to the gas reservoir characteristics of the old gas field, and establishing a gas reservoir geological model of the old gas field according to the gas reservoir geological characteristics and geological mining direction of the old gas field;
Based on a gas reservoir geological model of an old gas field, determining a gas reservoir residual gas distribution rule of the old gas field by analyzing geological factors, shaft factors, process factors, gas reservoir engineering evaluation data, numerical simulation data, well history analysis data, field investigation data and downhole operation data of the old gas field;
Determining an old well shaft integrity evaluation result of the old gas field according to the well history data, the field investigation data and the underground operation data of the old gas field;
Determining main control factors of low yield or shut-in of the old gas field according to the gas reservoir characteristics, the well drilling and completion process and the gas production process of the old gas field;
Determining an old well measure mining potential evaluation result of the old gas field according to a gas reservoir residual gas distribution rule of the old gas field, an old well shaft integrity evaluation result of dark and old-fashioned fields and main control factors of dark and old-fashioned fields low yield or shut-down well:
Determining the evaluation result of the potential digging of the old well measure of the old gas field according to the following formula:
P2＝PS2×PC2×PJ×PG×PY
Wherein: p2 represents the evaluation result of the potential of the old well measure of the old gas field; p S2 represents the reserve condition parameters of the old well; p C2 represents reservoir condition parameters for old wells; p J represents an old well shaft integrity evaluation result parameter of the old gas field; p G represents main control factor parameters of low yield or shut-in well of old gas field; p Y represents parameters of the technological conditions of measure diving; wherein P S、PC、PY is determined according to the gas reservoir residual gas distribution rule of the old gas field.
The different parameters in the formula are obtained by dividing the sum of the influence factor scores corresponding to the parameters by the number of the influence factors, and the influence factors are preset before calculation.
Determining the technical data of the old well measure diving process of the old gas field according to the geological features of the gas reservoir of the old gas field, and carrying out targeted improvement on the prior art according to the requirement of the old well measure diving so as to meet the requirement of measure diving;
Determining the measure well digging position of the old gas field according to the well repairing, hole supplementing, water shutoff, profile control, drainage gas production, stratum energy supplementing, production working system adjustment, reservoir reconstruction, sidetracking, new well encryption and edge expansion measure well digging according to the evaluation result of the well digging potential of the old gas field and the technical data of the well digging process of the old well in dark and old-fashioned fields;
and carrying out economic and risk prediction on the measure well-digging position of the dark and old-fashioned field, wherein the cost of digging the old well measure and the development index of increasing production can be predicted, single well economic benefit statistics is carried out on the basis of single wells, the site construction conditions are combined according to the economic and risk prediction result, the measure well-digging old well of the old gas field is selected, and the selected old wells are ordered.
The embodiment of the invention also provides a well digging and selecting device for the developed old gas field measure, which is described in the following embodiment. Because the principle of the device for solving the problems is similar to that of the developed dark and old-fashioned field measure well digging and selecting method, the implementation of the device can be referred to the implementation of the method, and the repeated parts are not repeated.
FIG. 5 is a schematic diagram of a well logging device for well logging under development in an embodiment of the present invention, as shown in FIG. 5, the device comprising:
Dark and old-fashioned Tian Xuanding module 01 for selecting a submerged dark and old-fashioned field;
The geological model building module 02 is used for determining the gas reservoir characteristics of the old gas field according to the gas reservoir data of the old gas field, determining the gas reservoir geological characteristics and the geological submerged direction of the old gas field according to the gas reservoir characteristics of the old gas field, and building a gas reservoir geological model of the old gas field according to the gas reservoir geological characteristics and the geological submerged direction of the old gas field;
The distribution rule determining module 03 is used for determining the gas reservoir residual gas distribution rule of the old gas field through gas reservoir engineering research and history fitting based on the gas reservoir geological model of the old gas field;
The integrity evaluation module 04 is used for determining an old well shaft integrity evaluation result of the old gas field according to the well history data, the field investigation data and the underground operation data of the old gas field;
The main control factor determining module 05 is used for determining main control factors of low yield or shut-in of the old gas field according to the gas reservoir characteristics, the well drilling and completion process and the gas production process of the old gas field;
The potential mining evaluation module 06 is configured to determine a potential mining evaluation result of old well measures of the old gas field according to a gas reservoir residual gas distribution rule of the old gas field, an old well shaft integrity evaluation result of dark and old-fashioned fields, and a main control factor of dark and old-fashioned fields low yield or well shutdown;
The submerged arc process determining module 07 is used for determining submerged arc process technical data of old well measures of the old gas field according to the geological characteristics of the gas reservoir of the old gas field;
The well position determining module 08 is used for determining the well position of the old gas field by the well potential of the old gas field according to the evaluation result of the well potential of the old gas field and the technical data of the well potential of the dark and old-fashioned field;
Dark and old-fashioned Tian Waqian a well selecting module 09, configured to perform economic and risk prediction on the potential well location of the dark and old-fashioned field, select the potential old well of the old gas field, and rank the selected old wells according to the economic and risk prediction result.
In one embodiment, dark and old-fashioned Tian Xuanding module 01 is specifically for: and selecting the submerged old gas field according to the hydrocarbon source rock, the reservoir condition, the preservation condition, the trap condition, the matched condition, the reserve condition and the development condition of the old gas field.
In specific implementation, the excavated dark and old-fashioned field is selected according to the following formula:
P1＝PT×PC×PQ×PB×PP×PS×PK
Wherein: p1 represents the diving evaluation result of the old gas field; p T represents a hydrocarbon source rock parameter; p C represents a reservoir condition parameter; p Q denotes a save condition parameter; p B denotes a trap condition parameter; p P represents a matching condition parameter; p S denotes a reserve condition parameter; p K represents development condition parameters.
The different parameters in the formula are obtained by dividing the sum of the influence factor scores corresponding to the parameters by the number of the influence factors, and the influence factors are preset before calculation.
In one embodiment, the gas reservoir data for an old gas field comprises:
drilling data, logging data, coring data, seismic data, dynamic monitoring data, production dynamic data, well history and measure data for old gas fields.
In one embodiment, the geologic model creation module 02 is specifically configured to: and determining the gas reservoir characteristics of the old gas field by analyzing the stratum, fracture, structure, sedimentary microphase, reservoir, gas reservoir and reserves of the old gas field according to the gas reservoir data of the old gas field.
In one embodiment, the distribution rule determining module 03 is specifically configured to: based on a gas reservoir geological model of the old gas field, determining the gas reservoir residual gas distribution rule of the old gas field by analyzing geological factors, shaft factors, process factors, gas reservoir engineering evaluation data, numerical simulation data, well history analysis data, field investigation data and downhole operation data of the old gas field.
In one embodiment, the integrity evaluation module 04 is specifically configured to: after the old well is produced for a long time, the well bore condition is greatly changed, the well bore integrity evaluation result of the old well of the old gas field is determined according to the well history data, the field investigation data and the underground operation data of the old gas field, and the measure mining construction condition which can be born by the old well is determined according to the evaluation result.
In one embodiment, the mining potential evaluation module 06 is specifically configured to: the old well of dark and old-fashioned fields is dug by the following formula:
P2＝PS2×PC2×PJ×PG×PY
Wherein: p2 represents the evaluation result of the potential of the old well measure of the old gas field; p S2 represents the reserve condition parameters of the old well; p C2 represents reservoir condition parameters for old wells; p J represents an old well shaft integrity evaluation result parameter of the old gas field; p G represents main control factor parameters of low yield or shut-in well of old gas field; p Y represents parameters of the technological conditions of measure diving; wherein P S、PC、PY is determined according to the gas reservoir residual gas distribution rule of the old gas field.
The different parameters in the formula are obtained by dividing the sum of the influence factor scores corresponding to the parameters by the number of the influence factors, and the influence factors are preset before calculation.
In one embodiment, the recession process determination module 07 is specifically configured to: determining old well measure diving process technical data of the old gas field according to the gas reservoir geological characteristics of the old gas field can comprise: aiming at the geological characteristics of the old gas field, a measure diving process technology is optimized, and the existing process technology is pertinently improved according to the measure diving requirement of the old well, so that the measure diving requirement is met.
In one embodiment, the submersible well position determination module 08 is specifically configured to: according to the evaluation result of the potential of the old well measure of the old gas field and the technical data of the technique of the old well measure of dark and old-fashioned fields, the potential of the old gas field is determined according to the well repair, hole supplement, water shutoff, profile control, drainage and gas production, stratum energy supplement, production working system adjustment, reservoir reconstruction, sidetracking, new well encryption and edge expansion measure potential.
In one embodiment, dark and old-fashioned Tian Waqian the well selection module 09 is specifically configured to: economic and risk prediction for a measure of a dark and old-fashioned field to dig a well site may include: predicting the sinking cost of the old well measures and the development index of yield increase, developing the economic benefit of a single well based on the single well, selecting the measures of the old gas field to dig the old well in combination with the site construction condition, and sequencing the selected old wells.
In the embodiment of the invention, a dark and old-fashioned field measure well selecting method is developed, and a submerged old gas field is selected; determining the gas reservoir characteristics of the old gas field according to the gas reservoir data of the old gas field, determining the gas reservoir geological characteristics and geological mining directions of the old gas field according to the gas reservoir characteristics of the old gas field, and establishing a gas reservoir geological model of the old gas field according to the gas reservoir geological characteristics and geological mining directions of the old gas field; based on a gas reservoir geological model of the old gas field, determining a gas reservoir residual gas distribution rule of the old gas field through gas reservoir engineering research and history fitting; determining an old well shaft integrity evaluation result of the old gas field according to the well history data, the field investigation data and the underground operation data of the old gas field; determining main control factors of low yield or shut-in of the old gas field according to the gas reservoir characteristics, the well drilling and completion process and the gas production process of the old gas field; determining an old well measure mining potential evaluation result of the old gas field according to a gas reservoir residual gas distribution rule of the old gas field, an old well shaft integrity evaluation result of dark and old-fashioned fields and a main control factor of dark and old-fashioned fields low yield or well shutdown; determining the technical data of the old well measure diving process of the old gas field according to the geological features of the gas reservoir of the old gas field; determining the measure well digging position of the old gas field according to the old well measure well digging potential evaluation result of the old gas field and the old well measure well digging process technical data of dark and old-fashioned fields; and carrying out economic and risk prediction on the measure well-sinking position of the dark and old-fashioned field, selecting the measure well-sinking of the old gas field according to the economic and risk prediction result, and sequencing the selected old wells.
Compared with the technical scheme that the method for mining and selecting the well by means of dark and old-fashioned field measures in the prior art is weak in research, the mining effect of dark and old-fashioned field measures is poor, and the economic benefit is low, the method can accurately evaluate the mining potential of dark and old-fashioned field, and improve the mining effect and the economic benefit of old gas field measures.
In conclusion, the embodiment of the invention comprehensively evaluates the potential of the old well to form a unified developed dark and old-fashioned field measure potential well digging and selecting method, greatly improves the potential digging effect and economic benefit of dark and old-fashioned field measures, reduces the risk of measure potential digging, and has larger market demands and wide application prospects.
The embodiment of the invention also provides computer equipment, which comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor, wherein the processor realizes the developed dark and old-fashioned field measure well digging and selecting method when executing the computer program.
The embodiment of the invention also provides a computer readable storage medium, wherein the computer readable storage medium stores a computer program, and the computer program realizes the developed dark and old-fashioned field measure mining well selection method when being executed by a processor.
Embodiments of the present invention also provide a computer program product comprising a computer program which, when executed by a processor, implements the developed dark and old-fashioned field approach mining well method described above.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention, and are intended to be included within the scope of the appended claims and description.
It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the invention, and is not meant to limit the scope of the invention, but to limit the invention to the particular embodiments, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (12)
1.A method of well selection by well logging under development, comprising:
Selecting a submerged dark and old-fashioned field;
Determining the gas reservoir characteristics of the old gas field according to the gas reservoir data of the old gas field, determining the gas reservoir geological characteristics and geological mining directions of the old gas field according to the gas reservoir characteristics of the old gas field, and establishing a gas reservoir geological model of the old gas field according to the gas reservoir geological characteristics and geological mining directions of the old gas field;
Based on a gas reservoir geological model of the old gas field, determining a gas reservoir residual gas distribution rule of the old gas field through gas reservoir engineering research and history fitting;
Determining an old well shaft integrity evaluation result of the old gas field according to the well history data, the field investigation data and the underground operation data of the old gas field;
Determining main control factors of low yield or shut-in of the old gas field according to the gas reservoir characteristics, the well drilling and completion process and the gas production process of the old gas field;
determining an old well measure mining potential evaluation result of the old gas field according to a gas reservoir residual gas distribution rule of the old gas field, an old well shaft integrity evaluation result of dark and old-fashioned fields and a main control factor of dark and old-fashioned fields low yield or well shutdown;
determining the technical data of the old well measure diving process of the old gas field according to the geological features of the gas reservoir of the old gas field;
determining the measure well digging position of the old gas field according to the old well measure well digging potential evaluation result of the old gas field and the old well measure well digging process technical data of dark and old-fashioned fields;
and carrying out economic and risk prediction on the measure well-sinking position of the dark and old-fashioned field, selecting the measure well-sinking of the old gas field according to the economic and risk prediction result, and sequencing the selected old wells.
2. The method of claim 1, wherein selecting a submerged dark and old-fashioned field comprises:
And selecting the submerged old gas field according to the hydrocarbon source rock, the reservoir condition, the preservation condition, the trap condition, the matched condition, the reserve condition and the development condition of the old gas field.
3. The method of claim 2, wherein the submerged dark and old-fashioned field is selected according to the following formula based on source rock, reservoir conditions, storage conditions, trapping conditions, mating conditions, reserves conditions, development conditions of the old gas field:
P1＝PT×PC×PQ×PB×PP×PS×PK
Wherein: p1 represents the diving evaluation result of the old gas field; p T represents a hydrocarbon source rock parameter; p C represents a reservoir condition parameter; p Q denotes a save condition parameter; p B denotes a trap condition parameter; p P represents a matching condition parameter; p S denotes a reserve condition parameter; p K represents development condition parameters.
4. The method of claim 1, wherein the gas reservoir data of the old gas field comprises:
drilling data, logging data, coring data, seismic data, dynamic monitoring data, production dynamic data, well history and measure data for old gas fields.
5. The method of claim 1, wherein determining the gas reservoir characteristics of the old gas field from the gas reservoir data of the old gas field comprises:
And determining the gas reservoir characteristics of the old gas field by analyzing the stratum, fracture, structure, sedimentary microphase, reservoir, gas reservoir and reserves of the old gas field according to the gas reservoir data of the old gas field.
6. The method of claim 1, wherein determining the gas reservoir residual gas distribution law of the old gas field based on the gas reservoir geologic model of the old gas field through gas reservoir engineering studies and history fitting comprises:
based on a gas reservoir geological model of the old gas field, determining the gas reservoir residual gas distribution rule of the old gas field by analyzing geological factors, shaft factors, process factors, gas reservoir engineering evaluation data, numerical simulation data, well history analysis data, field investigation data and downhole operation data of the old gas field.
7. The method of claim 1, wherein the old well measure potential evaluation result of the old gas field is determined according to the following formula, according to the gas reservoir residual gas distribution rule of the old gas field, the old well shaft integrity evaluation result of dark and old-fashioned fields, the main control factors of dark and old-fashioned fields low yield or shut-in well:
P2＝PS2×PC2×PJ×PG×PY
Wherein: p2 represents the evaluation result of the potential of the old well measure of the old gas field; p S2 represents the reserve condition parameters of the old well; p C2 represents reservoir condition parameters for old wells; p J represents an old well shaft integrity evaluation result parameter of the old gas field; p G represents main control factor parameters of low yield or shut-in well of old gas field; p Y represents parameters of the technological conditions of measure diving; wherein P S、PC、PY is determined according to the gas reservoir residual gas distribution rule of the old gas field.
8. The method of claim 1, wherein determining the step of sinking the old gas field based on the old well step sinking potential evaluation result of the old gas field and the old well step sinking process technical data of dark and old-fashioned fields comprises:
according to the evaluation result of the potential of the old well measure of the old gas field and the technical data of the technique of the old well measure of dark and old-fashioned fields, the potential of the old gas field is determined according to the well repair, hole supplement, water shutoff, profile control, drainage and gas production, stratum energy supplement, production working system adjustment, reservoir reconstruction, sidetracking, new well encryption and edge expansion measure potential.
9. A developed old gas field measure well logging device, comprising:
The old gas field selection module is used for selecting a submerged dark and old-fashioned field;
The geological model building module is used for determining the gas reservoir characteristics of the old gas field according to the gas reservoir data of the old gas field, determining the gas reservoir geological characteristics and the geological submerged direction of the old gas field according to the gas reservoir characteristics of the old gas field, and building a gas reservoir geological model of the old gas field according to the gas reservoir geological characteristics and the geological submerged direction of the old gas field;
The distribution rule determining module is used for determining the gas reservoir residual gas distribution rule of the old gas field through gas reservoir engineering research and history fitting based on the gas reservoir geological model of the old gas field;
The integrity evaluation module is used for determining an old well shaft integrity evaluation result of the old gas field according to the well history data, the field investigation data and the underground operation data of the old gas field;
The main control factor determining module is used for determining main control factors of low yield or shut-in well of the old gas field according to the gas reservoir characteristics, the well drilling and completion process and the gas production process of the old gas field;
the mining potential evaluation module is used for determining mining potential evaluation results of old well measures of the old gas field according to the distribution rule of residual gas in the gas reservoir of the old gas field, the integrity evaluation result of an old well shaft of the dark and old-fashioned field and the main control factors of low yield or shut-down of the dark and old-fashioned field;
The submerged arc process determining module is used for determining the submerged arc process technical data of the old well measure of the old gas field according to the geological characteristics of the gas reservoir of the old gas field;
The well position determining module is used for determining the well position of the old gas field by the well potential of the old gas field according to the evaluation result of the well potential of the old gas field and the technical data of the well potential of the old gas field in dark and old-fashioned fields;
And dark and old-fashioned Tian Waqian a well selecting module, which is used for carrying out economic and risk prediction on the measure well-sinking position of the dark and old-fashioned field, selecting measures of the old gas field to dig the old wells according to the economic and risk prediction result, and sequencing the selected old wells.
10. A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the method of any of claims 1 to 8 when executing the computer program.
11. A computer readable storage medium, characterized in that the computer readable storage medium stores a computer program which, when executed by a processor, implements the method of any of claims 1 to 8.
12. A computer program product, characterized in that the computer program product comprises a computer program which, when executed by a processor, implements the method of any of claims 1 to 8.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118273686A true CN118273686A (en) | 2024-07-02 |
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