Plate establishing method, system and equipment for calibrating gas drive recovery ratio and storage medium

Abstract

The invention belongs to the technical field of gas drive recovery rate calibration, and particularly relates to a chart establishing method, system, equipment and medium for calibrating the gas drive recovery rate, and the chart establishing method comprises the steps that firstly, based on gas consumption rate definition and in combination with an accumulated injection-production ratio and a water-gas content, a calculation expression of the gas consumption rate, the accumulated injection-production ratio and the water-gas content is determined; establishing a chart expression of the gas consumption rate, the cumulative injection-production ratio and the recovery degree according to a calculation expression of the gas consumption rate, the cumulative injection-production ratio and the water-gas content and a gas-injection development oil reservoir simulated water-gas content gas drive chart expression; and finally, establishing a gas drive recovery rate calibration chart expression of the gas consumption index and the recovery degree according to the chart expressions of the gas consumption rate, the cumulative injection-production ratio and the recovery degree. According to the method, a specific calculation formula and a prediction plate are provided, the gas drive recovery ratio can be rapidly calibrated through existing data, and the recovery ratio prediction plate provided by the invention does not depend on the water-gas content and does not need to predict the recovery ratio in different gas drive stages.

Description

Technical Field

[0001] The present invention belongs to the technical field of gas drive recovery factor calibration, and in particular relates to a method, system, equipment and medium for establishing a chart for calibrating gas drive recovery factor. Background Art

[0002] Gas drive recovery efficiency refers to the ratio of reserves recovered by gas injection to the original geological reserves. By accurately calibrating the gas drive recovery efficiency, we can determine the recoverable reserves through gas drive, thereby guiding gas drive development.

[0003] The calibration method of gas drive recovery rate is generally based on indoor experimental estimation and numerical simulation, which results in large calculation errors. In the existing technology (Tang Yong, Zhang Haochuan, He Youwei, et al. A new oil reservoir gas drive recovery rate prediction chart [J]. Petroleum Exploration and Development, 2022, 49(3): 530-537.), a method for predicting the recovery rate of gas drive reservoirs by establishing a gas drive recovery rate prediction chart was proposed. Based on the Tong chart, the influence of the three phases of oil, gas, and water was considered. The water content was replaced by the water gas ratio, which is the ratio of the sum of the underground volume of cumulative gas and water production to the underground volume of total produced fluid. The cumulative gas production was included in the Tong water drive characteristic curve chart, and the gas drive characteristic curve equation was derived. A new chart suitable for gas drive reservoir recovery rate prediction was established. At the same time, the actual production data of the oil field was used in combination with the numerical simulation prediction data of the oil reservoir to demonstrate the applicability of the new chart and verify the accuracy of the prediction results with examples. The recovery rate prediction chart is a chart of water gas content and recovery degree. The prediction results need to be divided into three stages: "early gas drive, middle stage, and late stage". That is, the gas drive recovery rate is predicted in stages according to different water gas content values. The calculation results depend on the water gas content; the calculation process is cumbersome.

[0004] Therefore, it is necessary to propose a simpler method for establishing a plate for gas drive recovery factor in order to achieve accurate calibration of gas drive recovery factor. Summary of the Invention

[0005] In order to solve or partially solve the above problems, in a first aspect, the present invention proposes a method for establishing a plate for calibrating gas drive recovery, comprising the following steps:

[0006] Based on the definition of gas consumption rate and combined with cumulative injection production ratio and water gas ratio, the calculation expression of gas consumption rate, cumulative injection production ratio and water gas ratio is determined;

[0007] Establishing a graphic expression of gas consumption rate, cumulative injection production ratio and recovery degree based on the calculation expression of gas consumption rate, cumulative injection production ratio and water gas ratio, and the simulated water gas ratio gas drive graphic expression of gas injection development reservoir;

[0008] A gas drive recovery rate calibration chart expression of gas consumption index and recovery degree is established based on the chart expression of gas consumption rate, cumulative injection production ratio and recovery degree.

[0009] Furthermore, before determining the calculation expressions of gas consumption rate, cumulative injection-production ratio, and water-gas ratio, the cumulative gas injection volume, cumulative oil production, cumulative gas production, and cumulative water production are converted, specifically including:

[0010] Conversion of cumulative gas injection volume: multiply the cumulative gas injection volume measured by surface volume by the injected gas volume coefficient to obtain the cumulative gas injection volume measured by underground volume;

[0011] The conversion of gas injection cumulative oil production is as follows: the gas injection cumulative oil production measured by surface mass is divided by the crude oil density and then multiplied by the crude oil volume coefficient to obtain the gas injection cumulative oil production measured by underground volume;

[0012] The conversion of gas injection cumulative production is as follows: the gas injection cumulative production measured by surface volume is multiplied by the produced gas volume coefficient to obtain the gas injection cumulative production measured by underground volume;

[0013] The conversion of the cumulative water production of gas injection is as follows: the cumulative water production of gas injection measured by surface mass is divided by the density of formation water and then multiplied by the volume coefficient of formation water to obtain the cumulative water production of gas injection measured by underground volume.

[0014] Furthermore, the calculation expression for determining the gas consumption rate, the cumulative injection-production ratio, and the water gas ratio includes the following steps:

[0015] The gas consumption rate is defined as the underground gas consumption per cubic meter of underground crude oil produced by gas injection, and the definition expression of the gas consumption rate is determined as follows:

[0016] The cumulative injection-production ratio is defined as the ratio of the cumulative gas injection volume to the cumulative oil, gas and water production, and a definition expression for the cumulative injection-production ratio is determined;

[0017] Substituting the definition expression of the cumulative injection-production ratio into the definition expression of the gas consumption rate, a rewritten expression of the gas consumption rate is obtained;

[0018] The water content is defined as the percentage of the cumulative gas-water produced in the cumulative oil-gas-water produced, and a definition expression for the water content is determined;

[0019] Substitute the definition expression of the water gas ratio into the rewritten expression of the gas consumption rate to obtain the calculation expression of the gas consumption rate, the cumulative injection-production ratio, and the water gas ratio.

[0020] Furthermore, the definition expression of the gas consumption rate is:

[0021]

[0022] The definition expression of the cumulative injection-production ratio is:

[0023]

[0024] The definition expression of the water vapor content is:

[0025]

[0026] Where, h is the gas consumption rate; G i B is the cumulative gas volume; g is the injected gas volume coefficient; Z is the cumulative injection-production ratio; N p B is the cumulative oil production of gas injection; oi is the crude oil volume coefficient; ρ o is the density of crude oil; G p B is the cumulative gas production of gas injection; gp is the volume coefficient of produced gas; W p is the cumulative water production from gas injection; ρ w is the formation water density; B w is the formation water volume coefficient; f wg is the water vapor content.

[0027] Furthermore, the gas consumption rate is rewritten as:

[0028]

[0029] Where h is the gas consumption rate; Z is the cumulative injection-production ratio; G p B is the cumulative gas production of gas injection; gp is the volume coefficient of produced gas; W p is the cumulative water production from gas injection; ρ w is the formation water density; B w is the formation water volume coefficient; N p B is the cumulative oil production of gas injection; oi is the crude oil volume coefficient; ρ o is the density of crude oil.

[0030] Furthermore, the calculation expressions of the gas consumption rate, cumulative injection-production ratio, and water gas content are as follows:

[0031]

[0032] Where h is the gas consumption rate; Z is the cumulative injection-production ratio, f wg is the water vapor content.

[0033] Furthermore, the gas flooding plate expression of the simulated water content of the gas injection development reservoir is:

[0034]

[0035] Substituting the gas drive chart expression of the simulated water-cut gas rate of the gas injection development reservoir into the calculation expression of gas consumption rate, cumulative injection-production ratio, and water-cut gas rate, the chart expression of gas consumption rate, cumulative injection-production ratio, and recovery degree is obtained:

[0036]

[0037] Where, h is the gas consumption rate; Z is the cumulative injection-production ratio; f wg is the water vapor content; B oi is the crude oil volume coefficient; N g Control geological reserves for gas drive; R o is the actual extraction degree; R oe is the theoretical limit of recovery; b is a constant.

[0038] Furthermore, the gas consumption index is the ratio of the gas consumption rate to the cumulative injection-recovery ratio. The gas consumption index and the gas drive recovery factor calibration chart expression of the recovery degree are as follows:

[0039]

[0040] Where H w is the gas consumption index; B oi is the crude oil volume coefficient; N g Control geological reserves for gas drive; R oe is the theoretical limit of recovery; R o is the actual recovery degree; b is a constant.

[0041] In a second aspect, the present invention provides a system for establishing a chart for calibrating gas drive recovery, the system comprising:

[0042] A determination unit is used to determine a calculation expression of the gas consumption rate, the cumulative injection production ratio and the water gas ratio based on the definition of the gas consumption rate and in combination with the cumulative injection production ratio and the water gas ratio;

[0043] The first establishing unit is used to establish a graphic expression of gas consumption rate, cumulative injection production ratio and recovery degree based on the calculation expression of gas consumption rate, cumulative injection production ratio and water gas ratio, and the gas drive graphic expression of simulated water gas ratio of gas injection development reservoir;

[0044] The second establishing unit is used to establish a gas drive recovery rate calibration chart of gas consumption index and recovery degree according to the chart expression of gas consumption rate, cumulative injection production ratio and recovery degree.

[0045] In a third aspect, the present invention provides an electronic device comprising a processor, a communication interface, a memory, and a communication bus, wherein the processor, the communication interface, and the memory communicate with each other via the communication bus;

[0046] Memory for storing computer programs;

[0047] The processor is used to implement the method for establishing a plate for calibrating gas drive recovery factor when executing the program stored in the memory.

[0048] In a fourth aspect, the present invention proposes a computer-readable storage medium storing a computer program, which, when run, executes the method for establishing a plate for calibrating gas drive recovery factor.

[0049] Beneficial effects of the present invention:

[0050] The present invention is based on the definition of gas consumption rate, combined with the cumulative injection production ratio and water gas content, to obtain the calculation expression of gas consumption rate, cumulative injection production ratio and water gas content; according to the gas consumption rate calculation formula and the gas drive chart expression of the simulated water gas content of the gas injection development oil reservoir, the gas consumption rate, cumulative injection production ratio and recovery degree chart expression are obtained; and a gas drive recovery rate calibration chart of gas consumption index and recovery degree is further established. The above method provides a specific calculation formula and prediction chart, and the gas drive recovery rate can be quickly calibrated using existing data. The recovery rate prediction chart proposed by the present invention does not depend on the water gas content, and there is no need to predict the recovery rate by dividing the gas drive stage. The recovery rate prediction chart expression proposed by the patent of the present invention is simple in form and the calculation process is clear and straightforward; the gas injection production data of the actual gas injection development oil reservoir is plotted on the chart, and the recovery rate of the oil reservoir can be predicted by comparison.

[0051] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or will be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures pointed out in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0053] Figure 1 A flow chart of a method for establishing a plate for calibrating gas drive recovery efficiency proposed in an embodiment of the present invention is shown;

[0054] Figure 2 It shows the recovery factor calibration chart of X gas injection development reservoir in an embodiment of the present invention;

[0055] Figure 3 The embodiment of the present invention is shown Figure 2 A partial enlarged view of the recovery factor calibration chart for the ZhongX gas injection development reservoir;

[0056] Figure 4 A schematic diagram of a framework of a system for establishing a plate for calibrating gas drive recovery efficiency proposed in an embodiment of the present invention is shown;

[0057] Figure 5 A schematic diagram of an exemplary structure of an electronic device proposed in an embodiment of the present invention is shown. DETAILED DESCRIPTION

[0058] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0059] In order to more clearly illustrate the method and system for establishing a chart for calibrating gas drive recovery efficiency proposed by the present invention, this embodiment is further described by taking a gas injection development reservoir as an example.

[0060] The method for establishing the plate for calibrating gas drive recovery is as follows: Figure 1 As shown, the following steps are included:

[0061] S1: Based on the definition of gas consumption rate and combined with cumulative injection production ratio and water gas ratio, determine the calculation expression of gas consumption rate, cumulative injection production ratio and water gas ratio;

[0062] S2: establishing a graphic expression of gas consumption rate, cumulative injection production ratio, and recovery degree based on the calculation expressions of gas consumption rate, cumulative injection production ratio, and water gas content, and a graphic expression of simulated water gas content in gas injection development reservoirs;

[0063] S3: establishing a gas drive recovery rate calibration chart of gas consumption index and recovery degree according to the chart expressions of gas consumption rate, cumulative injection-production ratio and recovery degree.

[0064] The method also includes converting the cumulative gas injection volume, the cumulative oil production from gas injection, the cumulative gas production from gas injection, and the cumulative water production from gas injection before determining the gas consumption rate calculation formula.

[0065] Conversion of cumulative gas injection volume processing: Due to the cumulative gas injection volume G in the comprehensive data table of oilfield development i Measured in 100 million cubic meters of surface volume, to convert to 10,000 cubic meters of underground volume, multiply by the injected gas volume coefficient and multiply by 10,000;

[0066] Conversion of cumulative oil production from gas injection: Since the cumulative oil production from gas injection N in the comprehensive data table of oilfield development p In order to convert the surface mass unit to the underground volume unit of ten thousand cubic meters, it is necessary to divide it by the density of crude oil and then multiply it by the crude oil volume coefficient;

[0067] Conversion of gas injection cumulative production: Since the gas injection cumulative production G in the oilfield development comprehensive data tablep Measured in surface volume units of 100 million cubic meters, in order to convert to underground volume units of 10,000 cubic meters, it is necessary to multiply by the produced gas volume coefficient and multiply by 10,000;

[0068] Conversion of cumulative water production from gas injection: Since the cumulative water production from gas injection in the comprehensive data table is W p In order to convert the surface mass unit to the underground volume unit of ten thousand cubic meters, it is necessary to divide it by the density of the formation water and then multiply it by the volume coefficient of the formation water.

[0069] Determining the calculation expressions of gas consumption rate, cumulative injection production ratio, and water gas content in step S1 specifically includes the following steps:

[0070] (1) Determine the definition expression of gas consumption rate: The gas consumption rate is defined as the underground gas consumption per cubic meter of underground crude oil produced by gas injection. The definition expression of gas consumption rate is as follows:

[0071]

[0072] Where h is the gas consumption rate, dimensionless; G i is the cumulative gas injection volume, billion cubic meters; B g is the injected gas volume coefficient, dimensionless; N p is the cumulative oil production from gas injection, 10,000 tons; ρ o is the density of crude oil, tons / cubic meter; B oi is the crude oil volume coefficient, dimensionless.

[0073] (2) Determine the definition expression of the cumulative injection-production ratio, which is defined as the ratio of the cumulative gas injection volume to the cumulative oil, gas and water production. The specific calculation formula is as follows:

[0074]

[0075] Where: Z is the cumulative injection-production ratio, dimensionless; G i is the cumulative gas injection volume, billion cubic meters; B g is the injected gas volume coefficient, dimensionless; N p is the cumulative oil production from gas injection, 10,000 tons; ρ o is the density of crude oil, tons / cubic meter; B oi is the crude oil volume coefficient, dimensionless; G p B is the cumulative gas production of gas injection, billion cubic meters; gp is the volume coefficient of produced gas, dimensionless; W p is the cumulative water production of gas injection, 10,000 tons; ρ w is the density of formation water, tons / cubic meter; B w is the formation water volume coefficient, dimensionless.

[0076] (3) According to the definition expression of the cumulative injection-production ratio, the gas consumption rate expression is rewritten to obtain the primary gas consumption rate expression; the cumulative injection-production ratio is substituted into the definition of the gas consumption rate, and the rewritten gas consumption rate expression is obtained as follows:

[0077]

[0078] (4) Determine the definition expression of water content. The water content is defined as the percentage of the accumulated gas and water produced in the accumulated oil, gas and water. The definition and calculation formula of the water content is as follows:

[0079]

[0080] Where, f wg is the water vapor content, percentage;

[0081] The definition calculation formula of the water vapor content is rewritten to obtain the definition expression of the water vapor content as follows:

[0082]

[0083] (5) Substitute the definition expression of the cumulative injection-production ratio into the definition expression of the gas consumption rate to obtain a rewritten expression of the gas consumption rate; the rewritten expression of the obtained gas consumption rate is as follows:

[0084]

[0085] In step S2, a chart expression of gas consumption rate, cumulative injection-production ratio, and recovery degree is established based on the calculation expression of gas consumption rate, cumulative injection-production ratio, and water gas ratio, and the gas drive chart expression of simulated water gas ratio for gas injection development reservoirs; wherein the gas drive chart expression of simulated water gas ratio for gas injection development reservoirs is as follows:

[0086]

[0087] The expression of gas consumption rate and recovery degree is:

[0088]

[0089] N g Control geological reserves for gas drive; R oe is the theoretical limit of recovery, R o is the actual recovery degree, and b is a constant.

[0090] In step S3, a calibration chart expression of gas drive recovery rate of gas consumption index and recovery degree is established based on the chart expression of gas consumption rate, cumulative injection production ratio and recovery degree. The chart expression of gas drive recovery rate is based on gas consumption index H. w Indicates that the gas consumption index H w It is defined as the ratio of gas consumption rate to cumulative injection-production ratio. Its physical meaning is the gas consumption rate when the injection-production ratio is 1:

[0091]

[0092] Where h is the gas consumption rate, Z is the cumulative injection-production ratio, and f wg is the water vapor content, B oi is the crude oil volume coefficient; N g Control geological reserves for gas drive; R oe is the theoretical limit of recovery, R o is the actual recovery degree, and b is a constant.

[0093] Example

[0094] In order to more clearly illustrate the method for establishing a plate for calibrating gas drive recovery rate of the present invention, the above method is verified by taking the gas injection development and production data of X oil reservoir as an example. The calculated result of parameter b is 0.0031, the crude oil volume coefficient B oi 1.071, gas drive controlled geological reserves N g It is 27.78679 million square meters, and its plate expression is formula (10), Figure 2 and Figure 3 ,in, Figure 2 Calibrate the recovery rate chart for X gas injection development reservoir, Figure 3 This is a partial enlargement of the recovery rate calibration chart for gas injection development reservoir X. The horizontal axis is the recovery rate, and the vertical axis is the gas consumption index. The multiple curves in the figure are the theoretical calculation curves of gas consumption index and recovery rate of gas injection development reservoirs. Figure 2 The curves from left to right in the middle represent the theoretical limit of oil recovery R for gas injection development. oe Graphs of gas consumption index and recovery degree with values ​​of 55, 60, 65, 70, 75, 80, 85, and 90 respectively; Figure 3 From left to right in the middle are the theoretical limit extraction degree R oe Graphs of gas consumption index and recovery degree with values ​​of 65, 70, 75, and 80 respectively (i.e., local magnified clear graphs); Figure 2 、 3 The black triangle in the middle is the gas consumption index and recovery degree data point of the actual gas injection development of the X reservoir. Figure 2 、 Figure 3 It can be seen that the gas drive recovery rate of reservoir X is calibrated to 70%-75% using this plate.

[0095]

[0096] Based on the same concept as the embodiment of the method of the present invention, the embodiment of the present invention also provides a system for establishing a chart for calibrating gas drive recovery rate, specifically as follows: Figure 4 As shown,

[0097] A determination unit 401 is configured to determine a calculation expression for the gas consumption rate, the cumulative injection production ratio, and the water gas ratio based on the definition of the gas consumption rate and in combination with the cumulative injection production ratio and the water gas ratio;

[0098] The first establishing unit 402 is configured to establish a graphic expression of gas consumption rate, cumulative injection production ratio, and recovery degree based on the calculation expressions of gas consumption rate, cumulative injection production ratio, and water gas content, and a graphic expression of simulated water gas content in gas injection development reservoirs;

[0099] The second establishing unit 403 is used to establish a gas drive recovery factor calibration chart of gas consumption index and recovery degree according to the chart expression of gas consumption rate, cumulative injection recovery ratio and recovery degree.

[0100] Based on the same inventive concept, another exemplary embodiment of the present invention provides an electronic device. Figure 5 As shown, the electronic device includes at least one processor 501, at least one communication interface 502, at least one memory 503 and at least one communication bus 504; wherein the processor 501, the communication interface 502 and the memory 503 communicate with each other via the communication bus 504;

[0101] Memory 503, used to store computer programs;

[0102] The processor 501 is configured to implement the method for establishing a chart for calibrating gas drive recovery factor when executing the program stored in the memory 503 .

[0103] Optionally, the communication interface may be an interface of a communication module, such as an interface of a GSM module; the processor may be a processor CPU, or an application-specific integrated circuit ASIC (Application Specific Integrated Circuit), or one or more integrated circuits configured to implement the embodiments of the present invention. The memory may include a high-speed RAM memory, and may also include a non-volatile memory (non-volatile memory), such as at least one disk storage. The memory stores a program, and the processor calls the program stored in the memory to execute some or all of the above-mentioned method embodiments.

[0104] Based on the same inventive concept, embodiments of the present application further provide a computer-readable storage medium storing a computer program, which, when executed by a processor, implements some or all of the above-described method embodiments. Optionally, the storage medium may be a non-transitory computer-readable storage medium, such as a ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, or optical data storage device.

[0105] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for establishing a plate for calibrating gas drive recovery, characterized in that: The following steps are involved: Based on the definition of gas consumption rate and combined with cumulative injection production ratio and water gas content, the calculation expression of gas consumption rate, cumulative injection production ratio and water gas content is determined; According to the calculation expressions of gas consumption rate, cumulative injection production ratio and water content gas rate, and the gas drive plate expression of the simulated water content gas rate of the gas injection development reservoir, a plate expression of gas consumption rate, cumulative injection production ratio and recovery degree is established; A gas drive recovery factor calibration chart expression of gas consumption index and recovery degree is established according to the chart expression of gas consumption rate, cumulative injection production ratio and recovery degree.

2. The method for establishing a plate for calibrating gas drive recovery factor according to claim 1, characterized in that: Before determining the calculation expressions of gas consumption rate, cumulative injection production ratio and water content, the cumulative gas injection volume, cumulative oil production, cumulative gas production and cumulative water production of gas injection are converted, including: Conversion of cumulative gas injection volume: multiply the cumulative gas injection volume measured by surface volume by the injected gas volume coefficient to obtain the cumulative gas injection volume measured by underground volume; The conversion of gas injection cumulative oil production is as follows: the gas injection cumulative oil production measured by surface mass is divided by the density of crude oil and then multiplied by the crude oil volume coefficient to obtain the gas injection cumulative oil production measured by underground volume; The conversion of gas injection cumulative production is as follows: the gas injection cumulative production measured by surface volume is multiplied by the produced gas volume coefficient to obtain the gas injection cumulative production measured by underground volume; The conversion of the cumulative water production of gas injection is as follows: the cumulative water production of gas injection measured by surface mass is divided by the formation water density and then multiplied by the formation water volume coefficient to obtain the cumulative water production of gas injection measured by underground volume.

3. The method for establishing a plate for calibrating gas drive recovery factor according to claim 1, characterized in that: The calculation expression for determining the gas consumption rate, the cumulative injection production ratio, and the water content gas ratio comprises the following steps: The gas consumption rate is defined as the underground gas consumption per cubic meter of underground crude oil produced by gas injection, and the definition expression of the gas consumption rate is determined: The cumulative injection-production ratio is defined as the ratio of the cumulative gas injection volume to the cumulative oil, gas and water production volume, and a definition expression of the cumulative injection-production ratio is determined; Substituting the definition expression of the cumulative injection-production ratio into the definition expression of the gas consumption rate, a rewritten expression of the gas consumption rate is obtained; The water content is defined as the percentage of the cumulative gas-water produced in the cumulative oil-gas-water produced, and a definition expression of the water content is determined; Substitute the definition expression of the water content gas rate into the rewriting expression of the gas consumption rate to obtain the calculation expression of the gas consumption rate, the cumulative injection production ratio and the water content gas rate.

4. The method for establishing a plate for calibrating gas drive recovery factor according to claim 3, characterized in that: The definition expression of the gas consumption rate is: The definition expression of the cumulative injection-production ratio is: The definition expression of the water vapor content is: Where h is the gas consumption rate; G i B is the cumulative gas volume; g is the volume coefficient of injected gas; Z is the cumulative injection-production ratio; N p B is the cumulative oil production of gas injection; oi is the crude oil volume coefficient; ρ o is the density of crude oil; G p B is the cumulative gas production of gas injection; gp is the volume coefficient of produced gas; W p is the cumulative water production of gas injection; ρ w is the formation water density; B w is the formation water volume coefficient; f wg is the water vapor content.

5. The method for establishing a plate for calibrating gas drive recovery factor according to claim 3, characterized in that: The gas consumption rate is rewritten as: In the formula, h is the gas consumption rate; Z is the cumulative injection-production ratio; G p B is the cumulative gas production of gas injection; gp is the volume coefficient of produced gas; W p is the cumulative water production of gas injection; ρ w is the formation water density; B w is the formation water volume coefficient; N p B is the cumulative oil production of gas injection; oi is the crude oil volume coefficient; ρ o is the density of crude oil.

6. The method for establishing a plate for calibrating gas drive recovery factor according to claim 3, characterized in that: The calculation expressions of the gas consumption rate, cumulative injection production ratio and water gas content are as follows: In the formula, h is the gas consumption rate; Z is the cumulative injection-production ratio, f wg is the water vapor content.

7. The method for establishing a plate for calibrating gas drive recovery factor according to claim 1, characterized in that: The gas injection development reservoir simulated water content gas drive plate expression is: Substitute the gas drive chart expression of the simulated water content of the gas injection development reservoir into the calculation expression of gas consumption rate, cumulative injection production ratio, and water content gas rate to obtain the chart expression of gas consumption rate, cumulative injection production ratio, and recovery degree: In the formula, h is the gas consumption rate; Z is the cumulative injection-production ratio; f wg B is the water content; oi is the crude oil volume coefficient; N g Control geological reserves for gas drive; R o is the actual extraction degree; R oe is the theoretical limit of recovery; b is a constant.

8. The method for establishing a plate for calibrating gas drive recovery factor according to claim 1, characterized in that: The gas consumption index is the ratio of the gas consumption rate to the cumulative injection-production ratio. The gas consumption index and the gas drive recovery factor calibration chart expression of the recovery degree are as follows: In the formula, H w B is the gas consumption index; oi is the crude oil volume coefficient; N g Control geological reserves for gas drive; R oe is the theoretical limit of recovery; R o is the actual recovery degree; b is a constant.

9. A system for establishing a chart for calibrating gas drive recovery, characterized in that: The system comprises: A determination unit is used to determine the calculation expression of the gas consumption rate, the cumulative injection production ratio and the water gas ratio based on the definition of the gas consumption rate and in combination with the cumulative injection production ratio and the water gas ratio; The first establishing unit is used to establish a graphic expression of gas consumption rate, cumulative injection production ratio and recovery degree according to the calculation expression of gas consumption rate, cumulative injection production ratio and water content gas ratio and the graphic expression of gas drive of pseudo water content gas ratio of gas injection development oil reservoir; The second establishing unit is used to establish a gas drive recovery rate calibration chart of gas consumption index and recovery degree according to the chart expressions of gas consumption rate, cumulative injection production ratio and recovery degree.

10. An electronic device, characterized in that: It includes a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory communicate with each other via the communication bus; Memory for storing computer programs; The processor is used to implement the method for establishing a plate for calibrating gas drive recovery factor according to any one of claims 1 to 8 when executing the program stored in the memory.

11. A computer-readable storage medium, characterized in that: A computer program is stored, and when the computer program is run, the method for establishing a plate for calibrating gas drive recovery factor according to any one of claims 1 to 8 is executed.

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