Purpose layer-based dosage design method, system, electronic device and storage medium

Abstract

The present application relates to the technical field of oil exploration, in particular to a charge design method and system based on target layer, electronic equipment and storage medium, the method comprising: performing charge test under different lithology conditions; extracting target layer energy values under different lithology conditions, determining optimal energy values, analyzing and determining target layer depth and the corresponding charge of optimal energy values; determining the balance value K of different lithology, and calculating the corresponding excitation charge Y' according to the balance value K of different lithology, the burial depth H' of target layer and the standard energy value E'. Through the design method, system, electronic equipment and storage medium, balanced energy can be obtained for each excitation point corresponding to the target layer.

Description

Technical Field

[0001] This invention relates to the field of petroleum exploration technology, and in particular to a method, system, electronic device, and storage medium for designing dosage based on target formations. Background Technology

[0002] With the accelerated advancement of shale gas exploration and development, the exploration of deep shale gas has transitioned from the relatively shallow 3,500 meters to the deeper 4,000-4,500 meters. This shift has brought new challenges, such as increased geological complexity and increased reservoir burial depth. During deep shale gas exploration, the significant variations in the burial depth of the target layer, coupled with the failure to adjust the amount of propellant used at each activation point accordingly, lead to substantial differences in the energy received by the target layer, thus affecting the ability to obtain clear broadband reflectance information.

[0003] In the prior art, a Chinese invention patent document with publication number CN117348056A and publication date of January 5, 2024 has been proposed. The technical solution disclosed in this patent document is as follows: a method and device for determining the amount of propellant to ensure that the energy level of a single shot recorded by different lithologies is the same, comprising: acquiring test data of different lithology points, analyzing the test data to obtain the amplitude energy value of a single shot of different lithologies and different propellant amounts; establishing a set of fitting curve equations based on the amplitude energy values ​​corresponding to the single shot of different lithologies and different propellant amounts, and performing calculations according to the set of fitting curve equations to obtain the amount of propellant for different lithologies with the same energy level.

[0004] The aforementioned technical solutions, in practical application, do not consider the impact of reagent dosage on target layers at different depths. Therefore, there is an urgent need for a scientific reagent dosage design method to ensure that the target layer corresponding to each activation point receives balanced energy, thereby effectively improving data quality and supporting the exploration and development of deep shale gas. Summary of the Invention

[0005] To address the aforementioned technical problems, this invention proposes a drug dosage design method, system, electronic device, and storage medium based on the target layer, which can ensure that the target layer corresponding to each excitation point can obtain balanced energy.

[0006] This invention is achieved by adopting the following technical solution:

[0007] The drug dosage design method based on the target layer includes the following steps:

[0008] S1. Conduct dosage tests under different lithological conditions;

[0009] S2. Extract the energy values ​​of the target layer under different lithological conditions, determine the optimal energy value, and analyze and determine the depth of the target layer and the amount of reagent corresponding to the optimal energy value;

[0010] S3. Determine the equilibrium value K for different lithologies:

[0011]

[0012] In the formula, E is the optimal energy value, H is the target layer depth, and Y is the drug dosage;

[0013] S4. Calculate the corresponding activation charge Y′ based on the equilibrium value K for different lithologies, the burial depth H′ of the target layer, and the standard energy value E′:

[0014]

[0015] Step S1 specifically includes: taking several test points under different lithological conditions to conduct charge tests and obtaining single-shot firing results with different charge amounts under different lithological conditions.

[0016] The lithological elements include sandstone, mudstone, and Quaternary gravel.

[0017] Determining the optimal energy value specifically refers to comparing the target layer energy value in a single shot under the same lithological conditions with the standard energy value under the same lithological conditions, and selecting the target layer energy value with the smallest difference as the optimal energy value.

[0018] Before determining the optimal energy value, the following steps are taken: sorting the target layer energy values ​​in single shots under the same lithological conditions.

[0019] Determining the equilibrium value K for different lithologies also includes: conducting multiple dosage tests for various lithological conditions, averaging the equilibrium values ​​K obtained from the multiple dosage tests for different lithologies, and obtaining the final equilibrium value for different lithologies.

[0020] A drug dosage design system based on the target layer includes:

[0021] The data acquisition module is used to conduct dosage tests under different lithological conditions and obtain test data;

[0022] The data processing module is used to extract the target layer energy value under different lithological conditions from the experimental data, determine the optimal energy value, analyze and determine the target layer depth and the amount of reagent corresponding to the optimal energy value, and calculate the equilibrium value K for different lithologies.

[0023] The dosage calculation module is used to calculate the corresponding activation dosage based on the equilibrium value K of different lithologies, the burial depth of the target layer, and the standard energy value.

[0024] It also includes a database for data storage.

[0025] An electronic device includes a processor and a memory communicatively connected to the processor, the memory storing instructions executable by the processor to enable the processor to perform the above-described dosage design method based on target layer energy balance.

[0026] A non-transitory computer-readable storage medium storing computer instructions for causing a computer to execute the above-described dosage design method based on target layer energy balance.

[0027] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0028] 1. This method can solve the problem that the amount of activating agent in deep shale gas exploration cannot be adjusted with the burial depth. By quantitatively calculating the optimal value of the activating agent at different surface lithologies and burial depths, the method can achieve a balanced distribution of activation energy, thereby improving the quality of seismic data and supporting the effective exploration and development of deep shale gas.

[0029] Specifically, by determining the equilibrium value K for different lithologies, this method can quantify the optimal matching relationship between the activating agent dosage and energy value under different lithological conditions. It can reflect the absorption and reflection characteristics of various lithologies on the activating energy, providing key parameters for subsequent calculation of the activating agent dosage, thus enabling a scientific and accurate calculation method.

[0030] 2. This design method possesses strong versatility and practicality. It is not only applicable to the exploration and development of deep shale gas but can also be widely applied to other types of oil and gas exploration. Furthermore, this method offers advantages such as ease of operation and low cost, providing the oil and gas exploration industry with an efficient and economical solution. Attached Figure Description

[0031] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments, wherein:

[0032] Figure 1 This is a schematic diagram of the process of the present invention;

[0033] Figure 2 This is a schematic diagram showing the location of the test points in this invention;

[0034] Figure 3 This invention relates to a single-shot test of the charge dosage in mudstone.

[0035] Figure 4 This invention relates to a single-shot sandstone charge test.

[0036] Figure 5 This is a single-shot test of the fourth-generation gravel charge of the present invention;

[0037] Figure 6This is a schematic diagram illustrating the optimal energy values ​​suitable for the target layer in the comparative analysis of mudstone test points according to the present invention.

[0038] Figure 7 This is a schematic diagram illustrating the optimal energy values ​​suitable for the target layer in the comparative analysis of sandstone test points according to the present invention.

[0039] Figure 8 This is a schematic diagram illustrating the optimal energy values ​​suitable for the target layer in the comparative analysis of gravel test points according to the present invention.

[0040] Figure 9 This is a schematic diagram illustrating the application of the drug dosage design method based on the target layer of the present invention in a certain work area. Detailed Implementation

[0041] Example 1

[0042] As a basic embodiment of the present invention, the present invention includes a drug dosage design method based on the target layer, comprising the following steps:

[0043] S1. Conduct dosage tests under different lithological conditions.

[0044] S2. Extract the energy values ​​of the target layer under different lithological conditions, determine the optimal energy value, and analyze and determine the depth of the target layer and the dosage corresponding to the optimal energy value.

[0045] S3. Determine the equilibrium value K for different lithologies:

[0046]

[0047] In the formula, E is the optimal energy value, H is the target layer depth, and Y is the drug dosage.

[0048] S4. Calculate the corresponding activation charge Y′ based on the equilibrium value K for different lithologies, the burial depth H′ of the target layer, and the standard energy value E′:

[0049]

[0050] Example 2

[0051] As a preferred embodiment of the present invention, the present invention includes a drug dosage design method based on a target layer, comprising the following steps:

[0052] S1. Conduct charge tests under different lithological conditions. Specifically, conduct charge tests at several test points under different lithological conditions to obtain single-shot firing data with different charge amounts under different lithological conditions.

[0053] S2. Extract the target layer energy values ​​under different lithological conditions, determine the optimal energy value, and analyze and determine the target layer depth and the corresponding charge amount for the optimal energy value. Specifically, determining the optimal energy value means comparing the target layer energy value in a single firing under the same lithological conditions with the standard energy value under the same lithological conditions, and selecting the target layer energy value with the smallest difference as the optimal energy value.

[0054] S3. Determine the equilibrium value K for different lithologies:

[0055]

[0056] In the formula, E is the optimal energy value, H is the target layer depth, and Y is the drug dosage.

[0057] S4. Calculate the corresponding activation charge Y′ based on the equilibrium value K for different lithologies, the burial depth H′ of the target layer, and the standard energy value E′:

[0058]

[0059] Example 3

[0060] In another preferred embodiment of the present invention, the present invention includes a drug dosage design method based on a target layer, comprising the following steps:

[0061] S1. Conduct dosage tests under different lithological conditions.

[0062] S2. Extract the energy values ​​of the target layer under different lithological conditions, determine the optimal energy value, and analyze and determine the depth of the target layer and the dosage corresponding to the optimal energy value.

[0063] S3. Determine the equilibrium value K for different lithologies:

[0064]

[0065] In the formula, E is the optimal energy value, H is the target layer depth, and Y is the drug dosage.

[0066] More specifically, determining the equilibrium value K for different lithologies also includes: conducting multiple dosage tests for various lithological conditions, averaging the equilibrium values ​​K obtained from the multiple dosage tests for different lithologies, and obtaining the final equilibrium value for different lithologies.

[0067] S4. Based on the final equilibrium value K for different lithologies, the burial depth H′ of the target layer, and the standard energy value E′, calculate the corresponding activation charge Y′:

[0068]

[0069] Example 4

[0070] As another preferred embodiment of the present invention, the present invention includes a drug dosage design method based on the target layer, as described in the appendix to the specification. Figure 1 This includes the following steps:

[0071] S1. Conduct dosage tests under different lithological conditions. Specifically, conduct dosage tests at three test sites under each of the different lithological conditions, with the three test sites spaced at least 2 km apart, referring to the appendix of the instruction manual. Figure 2 ~Instruction manual attached Figure 5 Single-shot firings with different propellant charges (e.g., 4 kg, 6 kg, 8 kg) were obtained for typical lithologies. The lithologies included sandstone, mudstone, and Quaternary gravel.

[0072] S2. Extract the target layer energy values ​​under different lithological conditions, determine the optimal energy value, and analyze and determine the target layer depth and the corresponding charge quantity for the optimal energy value. Specifically, after extracting the target layer energy values ​​under each lithological condition, sort the target layer energy values ​​from single shots fired under the same lithological condition. Compare the target layer energy values ​​from single shots fired under the same lithological condition with the standard energy values ​​for that lithological condition, and select the target layer energy value with the smallest difference as the optimal energy value. The standard energy values ​​are set or summarized based on seismic data under different lithological conditions in this work area.

[0073] The analysis determined the target layer depth H and the corresponding drug dosage Y for the optimal energy value. (Refer to the appendix of the instruction manual.) Figure 6 ~Instruction manual attached Figure 8 The optimal energy value for the target layer in sandstone corresponds to a dosage of 6 kg, and the optimal energy value for the target layer in mudstone corresponds to a dosage of 8 kg.

[0074] S3. Based on each dosage test, determine the equilibrium value K for different lithologies using the following formula. Average the equilibrium values ​​K for different lithologies obtained from multiple dosage tests to obtain the final equilibrium value K′ for different lithologies.

[0075]

[0076] In the formula, E is the optimal energy value, H is the target layer depth, and Y is the drug dosage.

[0077] S4. Based on the final equilibrium value K′ for different lithologies, the burial depth H′ of the target layer, and the standard energy value E′, calculate the corresponding activation charge Y′:

[0078]

[0079] Refer to the instruction manual appendix Figure 9 This allows us to calculate the amount of activating agent at the corresponding location throughout the entire work area.

[0080] Example 5

[0081] In another preferred embodiment of the present invention, the present invention includes a drug dosage design system based on a target layer, comprising:

[0082] The data acquisition module is used to conduct dosage tests under different lithological conditions and obtain test data.

[0083] The data processing module is used to extract the target layer energy value under different lithological conditions from the experimental data, determine the optimal energy value, analyze and determine the target layer depth and the amount of reagent corresponding to the optimal energy value, and calculate the equilibrium value K for different lithologies.

[0084] The dosage calculation module is used to calculate the corresponding activation dosage based on the equilibrium value K of different lithologies, the burial depth of the target layer, and the standard energy value.

[0085] A database is used for data storage, including experimental data, intermediate data generated during data processing, and data determined through analysis.

[0086] Example 6

[0087] In another preferred embodiment of the present invention, the present invention includes an electronic device, including at least one processor and a memory communicatively connected to the processor. The memory stores instructions that can be executed by the processor, and the instructions are executed by the at least one processor to enable the at least one processor to perform the drug dosage design method based on target layer energy balance as described in any of the embodiments 1 to 4.

[0088] Example 7

[0089] In another preferred embodiment of the present invention, the present invention includes a non-transitory computer-readable storage medium storing computer instructions for causing a computer to execute the dosage design method based on target layer energy balance described in any one of Embodiments 1 to 4.

[0090] In summary, any other corresponding modifications made by those skilled in the art after reading this invention document, without requiring creative mental effort, based on the technical solutions and concepts of this invention, are all within the scope of protection of this invention.

Claims

1. A drug dosage design method based on the target layer, characterized in that: Includes the following steps: S1. Conduct dosage tests under different lithological conditions; S2. Extract the energy values ​​of the target layer under different lithological conditions, determine the optimal energy value, and analyze and determine the depth of the target layer and the amount of reagent corresponding to the optimal energy value; S3. Determine the equilibrium value K for different lithologies: In the formula, E is the optimal energy value, H is the target layer depth, and Y is the drug dosage; S4. Calculate the corresponding activation charge Y′ based on the equilibrium value K for different lithologies, the burial depth H′ of the target layer, and the standard energy value E′:

2. The drug dosage design method based on the target layer according to claim 1, characterized in that: Step S1 specifically includes: taking several test points under different lithological conditions to conduct charge tests and obtaining single-shot firing results with different charge amounts under different lithological conditions.

3. The drug dosage design method based on the target layer according to claim 2, characterized in that: The lithological elements include sandstone, mudstone, and Quaternary gravel.

4. The drug dosage design method based on the target layer according to claim 1, characterized in that: Determining the optimal energy value specifically refers to comparing the target layer energy value in a single shot under the same lithological conditions with the standard energy value under the same lithological conditions, and selecting the target layer energy value with the smallest difference as the optimal energy value.

5. The drug dosage design method based on the target layer according to claim 4, characterized in that: Before determining the optimal energy value, the following steps are taken: sorting the target layer energy values ​​in single shots under the same lithological conditions.

6. The drug dosage design method based on the target layer according to claim 1, characterized in that: Determining the equilibrium value K for different lithologies also includes: conducting multiple dosage tests for various lithological conditions, averaging the equilibrium values ​​K obtained from the multiple dosage tests for different lithologies, and obtaining the final equilibrium value for different lithologies.

7. A drug dosage design system based on the target layer, characterized in that: include: The data acquisition module is used to conduct dosage tests under different lithological conditions and obtain test data; The data processing module is used to extract the target layer energy value under different lithological conditions from the experimental data, determine the optimal energy value, analyze and determine the target layer depth and the amount of reagent corresponding to the optimal energy value, and calculate the equilibrium value K for different lithologies. The dosage calculation module is used to calculate the corresponding activation dosage based on the equilibrium value K of different lithologies, the burial depth of the target layer, and the standard energy value.

8. The drug dosage design system based on the target layer according to claim 7, characterized in that: It also includes a database for data storage.

9. An electronic device, characterized in that: It includes a processor and a memory communicatively connected to the processor, the memory storing instructions executable by the processor to enable the processor to execute the drug dosage design method based on target layer energy balance as described in any one of claims 1 to 6.

10. A non-transitory computer-readable storage medium, characterized in that: The non-transitory computer-readable storage medium stores computer instructions for causing a computer to execute the dosage design method based on target layer energy balance as described in any one of claims 1 to 6.

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