Method and device for determining strike-slip amount of strike-slip fault

Abstract

The application discloses a method and device for determining strike-slip fault strike-slip amount, which comprises the following steps: determining a target fault in a tilted stratum meeting a stratum inclination requirement; determining basic parameters of the target fault according to three-dimensional data of the tilted stratum, wherein the basic parameters comprise stratum bottom surface information of two fault plates and information between the stratum bottom surface of the two fault plates and a fault surface; and determining a strike-slip amount corresponding to a sliding type of the target fault according to the basic parameters of the target fault based on the sliding type. The application can effectively determine the strike-slip amount of the strike-slip fault in the tilted stratum.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of basic geology research, and particularly relates to a method and device for determining strike-slip fault strike-slip amount. BACKGROUND

[0002] Strike-slip faults generally have the characteristics of large scale, large fault depth, and poor sealing, etc. In the process of carbon dioxide safe storage, the existence of strike-slip faults generally affects the storage effect, and even can cause carbon dioxide leakage risk. The strike-slip amount is one of important indexes for evaluating strike-slip fault leakage risk, but the calculation of strike-slip amount of strike-slip fault has been a difficult problem in basic geology.

[0003] Due to the influence of complex geological conditions and strike-slip fault characteristics and other factors, it is difficult to have a universal strike-slip amount calculation method. At present, the influence of stratigraphic effect has been noticed in the calculation of strike-slip amount of strike-slip fault, but there is no quantitative research on the relationship between stratigraphic effect and fault strike-slip amount. In the inclined strata, the strike-slip activity of the fault is usually obviously different from the extension activity or the compression activity, that is, the inclined strata can record the nature of the fault activity.

[0004] However, there is no effective scheme for determining the strike-slip amount of strike-slip fault in inclined strata at present, which is a problem to be solved urgently. SUMMARY

[0005] The present application provides a method and device for determining strike-slip amount of strike-slip fault, to solve at least one of the above-mentioned problems.

[0006] According to a first aspect of the present application, a method for determining strike-slip amount of strike-slip fault is provided, and the method comprises:

[0007] determining a target fault in an inclined stratum meeting the inclination requirement of the stratum;

[0008] determining a basic parameter of the target fault according to three-dimensional data of the inclined stratum, wherein the basic parameter comprises: information of stratum bottom surfaces of two plates of the fault, and information between the stratum bottom surfaces of the two plates of the fault and a fault plane;

[0009] determining a strike-slip amount corresponding to a sliding type of the target fault according to the basic parameter of the target fault based on the sliding type of the target fault.

[0010] Specifically, the information of stratum bottom surfaces of two plates of the fault comprises: information of stratum bottom surface of upper plate of the fault and information of stratum bottom surface of lower plate of the fault, and the information of stratum bottom surfaces of two plates of the fault is determined by the following way:

[0011] slice the three-dimensional data, the slice processing including slice processing parallel to the target fault, slice processing vertical to the target fault, and horizontal slice processing;

[0012] determine, on the three-dimensional data after slice processing, the upper-plate stratum bottom surface information and the lower-plate stratum bottom surface information of the fault.

[0013] Specifically, the information between the two-plate stratum bottom surfaces and the fault surface includes intersection information between the upper-plate stratum bottom surface and the fault surface, and intersection information between the lower-plate stratum bottom surface and the fault surface.

[0014] Preferably, the slip types include left-lateral slip and right-lateral slip, and determining the strike-slip amount corresponding to the slip type according to the basic parameters of the target fault based on the slip type of the target fault includes determining the strike-slip amount corresponding to the slip type according to the intersection information between the upper-plate and lower-plate stratum top surfaces and the fault surface, and the intersection information between the upper-plate fault surface and the stratum bottom surface based on the slip type of the target fault.

[0015] According to a second aspect of the present application, a device for determining a strike-slip amount of a strike-slip fault is provided, the device comprising:

[0016] a target fault determining unit configured to determine a target fault in a tilted stratum meeting a stratum inclination requirement;

[0017] a basic parameter determining unit configured to determine basic parameters of the target fault according to three-dimensional data of the tilted stratum, the basic parameters including two-plate stratum bottom surface information and information between the two-plate stratum bottom surfaces and a fault surface;

[0018] a strike-slip amount determining unit configured to determine a strike-slip amount corresponding to a slip type of the target fault according to the basic parameters of the target fault based on the slip type of the target fault.

[0019] Specifically, the two-plate stratum bottom surface information includes upper-plate stratum bottom surface information and lower-plate stratum bottom surface information, and the device further comprises a stratum bottom surface information determining unit configured to determine the two-plate stratum bottom surface information,

[0020] the stratum bottom surface information determining unit comprising:

[0021] a slice processing module configured to slice the three-dimensional data, the slice processing including slice processing parallel to the target fault, slice processing vertical to the target fault, and horizontal slice processing;

[0022] The stratum bottom surface information determination module is configured to determine the stratum bottom surface information of the upper wall of the fault and the stratum bottom surface information of the lower wall of the fault on the three-dimensional data after slice processing.

[0023] Specifically, the information between the stratum bottom surface of the two walls of the fault and the fault surface includes intersection information between the stratum bottom surface of the upper wall of the fault and the fault surface and intersection information between the stratum bottom surface of the lower wall of the fault and the fault surface.

[0024] Preferably, the sliding types include left-lateral slip and right-lateral slip, and the strike-slip amount determination unit is specifically configured to determine the strike-slip amount corresponding to the sliding type of the target fault according to the intersection information between the stratum top surface of the upper wall and the lower wall of the fault and the fault surface and the intersection information between the stratum bottom surface of the upper wall of the fault and the fault surface based on the sliding type of the target fault.

[0025] Meanwhile, the present application also provides a computer device, comprising a memory, a processor and a computer program stored in the memory and executable on the processor, and the processor implements the above method when executing the computer program.

[0026] Meanwhile, the present application also provides a computer readable storage medium, which stores a computer program, and the computer program is executable on the processor to implement the above method.

[0027] From the above technical solution, the target fault is determined in the inclined stratum meeting the stratum inclination requirement, then the basic parameters of the target fault are determined according to the three-dimensional data of the inclined stratum, and then the strike-slip amount corresponding to the sliding type of the target fault is determined according to the basic parameters of the target fault based on the sliding type of the target fault, so that the strike-slip amount of the strike-slip fault in the inclined stratum can be effectively determined.

[0028] In order to make the above and other objects, features and advantages of the present application more apparent, clear and easy to understand, the following will specifically describe preferred embodiments of the present application with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0030] Figure 1 is a flow chart of a strike-slip fault strike-slip amount determination method according to an embodiment of the present application;

[0031] Figure 2 is a three-dimensional seismic data schematic diagram according to an embodiment of the present application;

[0032] Figure 3 is an example diagram of three-dimensional seismic data according to an embodiment of the present application;

[0033] Figure 4 is a structural block diagram of a strike-slip fault strike-slip amount determination device according to an embodiment of the present application. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative effort fall within the protection scope of the present application.

[0035] In the process of implementing the present application, the applicant found the following related technologies:

[0036] In recent years, with the wide application of three-dimensional seismic exploration technology, more and more oil and gas exploration areas have high-precision three-dimensional seismic data. In three-dimensional seismic data, seismic profiles in any direction can be obtained, which can provide a new method for calculating strike-slip amount.

[0037] Meanwhile, in inclined strata, when a fault has strike-slip activity or extension activity, the positions of the intersection points of the stratum top surface / bottom surface of the two plates (i.e., the upper plate and the lower plate) of the fault and the fault plane are different in the same plane. Based on the intersection point information, a new method for calculating the strike-slip amount of the fault can also be provided.

[0038] Therefore, in view of the fact that there is no scheme for effectively determining the strike-slip amount of a strike-slip fault in inclined strata at present, the embodiments of the present application provide a strike-slip fault strike-slip amount determination scheme, which can effectively determine the strike-slip amount of a strike-slip fault in inclined strata by combining the seismic profile information of the three-dimensional seismic data and the intersection point information of the stratum top surface / bottom surface of the two plates of the fault and the fault plane.

[0039] The embodiments of the present application will be described in detail below with reference to the drawings.

[0040] Figure 1 is a flowchart of a strike-slip fault strike-slip amount determination method according to an embodiment of the present application, as shown in the figure, the method comprises: Figure 1

[0041] Step 101, determining a target fault in inclined strata meeting a stratum inclination requirement.

[0042] The stratum inclination here can be greater than or equal to 5°. In three-dimensional seismic data (which can also be referred to as three-dimensional data), when the stratum inclination is greater than or equal to 5°, it can be determined that the stratum is an inclined stratum, so that the target fault can be determined in the inclined stratum.​

[0043] In step 102, the basic parameters of the target fault are determined according to the three-dimensional data of the inclined stratum, and the basic parameters include the information of the stratum bottom surfaces of the two sides of the fault and the information between the stratum bottom surfaces of the two sides of the fault and the fault surface.

[0044] In a specific implementation, the information of the stratum bottom surfaces of the two sides of the fault includes the information of the stratum bottom surface of the upper side of the fault and the information of the stratum bottom surface of the lower side of the fault.

[0045] In an embodiment, the information of the stratum bottom surfaces of the two sides of the fault can be determined by first performing slice processing on the three-dimensional seismic data, and the slice processing includes parallel slice processing, vertical slice processing and horizontal slice processing; and then determining the information of the stratum bottom surface of the upper side of the fault and the information of the stratum bottom surface of the lower side of the fault on the three-dimensional seismic data after the slice processing.

[0046] The information between the stratum bottom surfaces of the two sides of the fault and the fault surface specifically includes the intersection information between the stratum bottom surface of the upper side of the fault and the fault surface and the intersection information between the stratum bottom surface of the lower side of the fault and the fault surface.

[0047] In step 103, the strike-slip amount corresponding to the slip type of the target fault is determined according to the basic parameters of the target fault based on the slip type of the target fault.

[0048] In actual operation, the slip type includes left-lateral slip and right-lateral slip.

[0049] In a specific implementation, the strike-slip amount corresponding to the slip type of the target fault can be determined based on the intersection information between the stratum top surfaces of the upper side and the lower side of the fault and the fault surface and the intersection information between the stratum bottom surface of the upper side of the fault and the fault surface.

[0050] The embodiment of the present application can effectively determine the strike-slip amount of the strike-slip fault in the inclined stratum by determining the target fault in the inclined stratum meeting the stratum inclination requirement, then determining the basic parameters of the target fault according to the three-dimensional seismic data of the inclined stratum, and then determining the strike-slip amount corresponding to the slip type of the target fault according to the basic parameters of the target fault based on the slip type of the target fault.

[0051] In order to better understand the present application, the embodiments of the present application will be described in detail below with reference to the three-dimensional seismic data shown in the accompanying drawings. Figure 2 The strike-slip fault strike-slip amount determination method includes the following three steps S1-S3. Each step will be described in detail below.

[0052] Step S1: determining a target fault.

[0053] In the three-dimensional seismic data, firstly, it is judged whether the stratum inclination is greater than or equal to 5°, when the stratum inclination is greater than or equal to 5°, it can be determined that it is a tilted stratum, and then the target fault can be determined in the tilted stratum, and the target fault is usually large in scale and wide in planar extension.

[0054] Step S2: basic parameter acquisition.

[0055] Referring to Figure 2 As shown in the figure, according to the three-dimensional seismic data, the seismic profile b is cut along the hanging wall cutting line direction, and the plunging angle θ of the stratum and the fault intersection line is measured; the profile d perpendicular to the strike-slip fault flat section is cut, and the distance FH between the stratum bottom surfaces of the two walls along the fault direction is measured; the horizontal slice c is cut, and the angle α between the horizontal projection of the hanging wall cutting line and the fault line is measured.

[0056] According to the formula: cosβ=cosαcosθ, the angle β between the hanging wall cutting line and the fault line can be obtained. On the three-dimensional seismic data horizontal slice c, the stratum bottom surface and the fault line (i.e. the intersection line of the fault surface and the horizontal plane) can also be determined. At the same time, the horizontal distance AG between the two intersection points of the stratum bottom surface and the fault line on the horizontal plane can be measured. ？ Since the position of point G is undetermined (may be G', G" or G"'), it needs to be judged in the following step S3, so here AG ？ is used to represent.

[0057] Step S3: strike-slip amount calculation.

[0058] In the strike-slip amount calculation of the tilted stratum, it is assumed that the fault activity time is later than the stratum deposition time and the stratum thickness is consistent, when the fault only occurs in the dip direction, the intersection point of the stratum bottom surface on the hanging wall and the fault surface is G, the intersection points of the stratum top surface on the hanging wall and the lower wall and the fault surface are B and C respectively, then BE is parallel to GH, and the following formula (1) is satisfied:

[0059] CB=AG=CEcotβ=FHcotβ (1)

[0060] When left-lateral slip occurs, the intersection point of the fault surface on the hanging wall and the stratum bottom surface is G', AG ？ > FHcotβ, then AG ？ =AG', the strike-slip amount is AG'-AG; when right-lateral slip occurs, the intersection point of the fault surface on the hanging wall and the stratum bottom surface is G" or G" ', then AG ？ =AG" or AG ？ =AG" ', and the corresponding strike-slip amounts are AG-AG" or AG+AG" ', respectively. The length of AG can be determined according to the above formula (1). The actual intersection point position and the distance between it and the intersection point A of the lower wall stratum bottom surface can be measured in the horizontal slice, that is, AG ？ can be obtained.

[0061] The embodiment of the present application can effectively determine the strike-slip amount of the strike-slip fault in the inclined stratum by combining the seismic profile information of the three-dimensional seismic data and the intersection information of the stratum top surface / bottom surface and the fault surface of the two plates of the fault, and can provide effective geological basis for carbon dioxide geological storage and oil and gas exploration.

[0062] In order to further understand the present application, the following Figure 3 An example is given, in which, Figure 3 The horizontal and vertical coordinates represent longitude and latitude. In the example, the determination process of the strike-slip amount of the strike-slip fault is described in detail taking the A strike-slip structural belt as an example.

[0063] Step 1: Determine the target fault.

[0064] In the three-dimensional seismic data of the A strike-slip structural belt, first, the inclined stratum is determined, if the stratum inclination is ≥5°, the inclined stratum can be determined. Then, the target fault is determined in the inclined stratum.

[0065] Step 2: Obtain the basic parameters.

[0066] Taking the A strike-slip structural belt as an example, it is located in the south slope of the C sag, and the D Shahejie Formation is an inclined stratum with uniform thickness, which records the strike-slip amount of the structural belt in the later strike-slip activity. On the 1150ms horizontal slice of the A strike-slip structural belt, the horizontal distance between the bottom surfaces of the E2k1-E2k2 strata can be measured as 286m (i.e., AG ？ = 286m) (see Figure 3 ). In the seismic profile, the length of FH is 90m, and the angle (β) between the upper plate cutting line and the fault line is 7.529°.

[0067] Step 3: Calculate the strike-slip amount.

[0068] According to the above formula (1), the length of AG is 680m. The stratum tendency in this area is NW, and the strike-slip fault tendency is NW. If only extension activity occurs, the intersection point of the bottom surface of the upper plate stratum and the fault surface should be located on the right side of the corresponding point on the lower plate, but it is actually located on the left side of the corresponding point (G Figure 3 ), which indicates that the lower plate of the fault moves to the right relative to the upper plate, that is, the fault has right-lateral strike-slip activity, which is Figure 2 The case of intersection point G”’ in the example (G Figure 2 ). The length of AG is added to the length of AG”’ on the horizontal slice to obtain the strike-slip amount of the structural belt, which is 966m (i.e., 286+680=966m).

[0069] By combining seismic profile information from 3D seismic data with the intersection information of the top / bottom surfaces of the strata on both sides of the fault with the fault plane, strike-slip faults can be quantitatively identified. This allows for the effective determination of the strike-slip amount in inclined strata, and further enables the assessment of the risk of strike-slip fault leakage in the geological site selection for carbon dioxide storage, effectively ensuring the safety of production.

[0070] Based on a similar inventive concept, this invention also provides a device for determining the strike-slip amount of a strike-slip fault, which is preferably used to implement the process of the above-mentioned method for determining the strike-slip amount of a strike-slip fault.

[0071] Figure 4 This is a structural block diagram of the strike-slip fault strike-slip determination device, as shown below. Figure 4 As shown, the device includes: a target fault determination unit 1, a basic parameter determination unit 2, and a strike-slip determination unit 3, wherein:

[0072] Target fault determination unit 1 is used to determine the target fault in inclined strata that meet the stratum dip requirements.

[0073] The basic parameter determination unit 2 is used to determine the basic parameters of the target fault based on the three-dimensional data of the inclined strata. The basic parameters include: information on the bottom surface of the strata on both sides of the fault, and information between the bottom surface of the strata on both sides of the fault and the fault plane.

[0074] Specifically, the information on the bottom surfaces of the strata on both sides of the fault includes: the bottom surface information of the strata on the hanging wall and the bottom surface information of the strata on the footwall. The information between the bottom surfaces of the strata on both sides of the fault and the fault plane includes: the intersection information between the bottom surface of the strata on the hanging wall and the fault plane, and the intersection information between the bottom surface of the strata on the footwall and the fault plane.

[0075] The strike-slip determination unit 3 is used to determine the strike-slip amount corresponding to the strike-slip type based on the strike-slip type of the target fault and according to the basic parameters of the target fault.

[0076] In practice, the types of sliding include: left-hand sliding and right-hand sliding.

[0077] In one embodiment, the strike-slip determination unit 3 is specifically used to: determine the strike-slip amount corresponding to the strike type based on the slip type of the target fault, according to the intersection information between the top surface of the strata on the hanging wall and footwall and the fault plane, and the intersection information between the fault surface on the hanging wall and the bottom surface of the strata.

[0078] In this embodiment of the invention, the target fault determination unit 1 determines the target fault in the inclined strata that meet the stratum dip requirements. Then, the basic parameter determination unit 2 determines the basic parameters of the target fault based on the three-dimensional data of the inclined strata. After that, the strike-slip determination unit 3 determines the strike-slip amount corresponding to the slip type of the target fault based on the basic parameters of the target fault. In this way, the strike-slip amount of the strike-slip fault in the inclined strata can be effectively determined.

[0079] In practical operation, the aforementioned device further includes: a stratigraphic bottom surface information determination unit, used to determine the stratigraphic bottom surface information of the two blocks of the fault. Specifically, the stratigraphic bottom surface information determination unit includes: a slice processing module and a stratigraphic bottom surface information determination module, wherein:

[0080] The slicing module is used to slice the above three-dimensional data. The slicing process includes: slicing parallel to the target fault, slicing perpendicular to the target fault, and horizontal slicing.

[0081] The stratigraphic bottom surface information determination module is used to determine the stratigraphic bottom surface information of the hanging wall and footwall of the fault on the 3D data after slice processing.

[0082] The specific execution process of each unit and module mentioned above can be found in the description in the above method embodiments, and will not be repeated here.

[0083] In practice, the above-mentioned units and modules can be combined or set up individually, and the present invention is not limited thereto.

[0084] This embodiment also provides an electronic device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor. The electronic device can be a desktop computer, tablet computer, or mobile terminal, etc., and this embodiment is not limited thereto. In this embodiment, the electronic device can be implemented with reference to the above-described method embodiments and the embodiments of the device for determining the strike-slip amount of a strike-slip fault; their contents are incorporated herein, and repeated details will not be described again.

[0085] This invention also provides a computer-readable storage medium storing a computer program thereon, which, when executed by a processor, implements the steps of the method for determining the strike-slip amount of a strike-slip fault described above.

[0086] In summary, the embodiments of this invention relate to basic geological research in the process of carbon dioxide sequestration geological site selection and oil geological exploration. Specifically, they involve a method for calculating the strike-slip volume of strike-slip faults in inclined strata. By combining seismic profile information from 3D seismic data and the intersection information of the top / bottom surfaces of the strata on both sides of the fault with the fault plane, strike-slip faults can be quantitatively identified, thereby effectively determining the strike-slip volume of strike-slip faults in inclined strata and providing effective geological basis for carbon dioxide geological sequestration and oil and gas exploration.

[0087] Specific embodiments have been used to illustrate the principles and implementation methods of this invention. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this invention. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this invention. Therefore, the content of this specification should not be construed as a limitation of this invention.

Claims

1. A method for determining the strike-slip amount of a strike-slip fault, characterized in that, The method includes: Identify the target fault in inclined strata that meet the required dip angle. Based on the three-dimensional data of the inclined strata, the basic parameters of the target fault are determined. The basic parameters include: information on the bottom surface of the strata on both sides of the fault, and information between the bottom surface of the strata on both sides of the fault and the fault plane. Based on the slip type of the target fault, the strike-slip amount corresponding to the slip type is determined according to the basic parameters of the target fault. The slip types include left-lateral slip and right-lateral slip. Based on the slip type of the target fault, the strike-slip amount corresponding to the slip type is determined according to the basic parameters of the target fault, including: based on the slip type of the target fault, the strike-slip amount corresponding to the slip type is determined according to the intersection information between the top surface of the strata on the hanging wall and footwall and the fault plane, and the intersection information between the fault plane on the hanging wall and the bottom surface of the strata.

2. The method as described in claim 1, characterized in that, The stratigraphic bottom surface information of the two sides of the fault includes: the stratigraphic bottom surface information of the hanging wall and the stratigraphic bottom surface information of the footwall. The stratigraphic bottom surface information of the two sides of the fault is determined in the following manner: The three-dimensional data is sliced, and the slicing process includes: slicing parallel to the target fault, slicing perpendicular to the target fault, and horizontal slicing. Based on the sliced ​​3D data, the information of the bottom surface of the strata on the hanging wall and the footwall of the fault is determined.

3. The method as described in claim 2, characterized in that, The information between the bottom surfaces of the strata on both sides of the fault and the fault plane includes: Information on the intersection between the bottom surface of the strata on the hanging wall and the fault plane, and information on the intersection between the bottom surface of the strata on the footwall and the fault plane.

4. The method as described in claim 1, characterized in that, The slip types include left-handed slip and right-handed slip. Based on the slip type of the target fault, the strike-slip amount corresponding to the slip type is determined according to the basic parameters of the target fault, including: Based on the slip type of the target fault, the strike-slip amount corresponding to the slip type is determined according to the intersection information between the top surface of the strata on the hanging wall and footwall and the fault plane, and the intersection information between the fault plane on the hanging wall and the bottom surface of the strata.

5. A device for determining the strike-slip amount of a strike-slip fault, characterized in that, The device includes: The target fault determination unit is used to determine the target fault in inclined strata that meet the stratum dip requirements. The basic parameter determination unit is used to determine the basic parameters of the target fault based on the three-dimensional data of the inclined strata. The basic parameters include: information on the bottom surface of the strata on both sides of the fault, and information between the bottom surface of the strata on both sides of the fault and the fault plane. The strike-slip determination unit is used to determine the strike-slip amount corresponding to the slip type based on the slip type of the target fault and according to the basic parameters of the target fault. The slip types include left-lateral slip and right-lateral slip. Based on the slip type of the target fault, the strike-slip amount corresponding to the slip type is determined according to the basic parameters of the target fault, including: based on the slip type of the target fault, the strike-slip amount corresponding to the slip type is determined according to the intersection information between the top surface of the strata on the hanging wall and footwall and the fault plane, and the intersection information between the fault plane on the hanging wall and the bottom surface of the strata.

6. The apparatus as claimed in claim 5, characterized in that, The information on the bottom surfaces of the strata on both sides of the fault includes: information on the bottom surface of the strata on the hanging wall and information on the bottom surface of the strata on the footwall. The device further includes: a strata bottom surface information determining unit, used to determine the information on the bottom surfaces of the strata on both sides of the fault. The unit for determining the bottom surface information of the strata includes: The slicing module is used to slice the three-dimensional data. The slicing process includes: slicing parallel to the target fault, slicing perpendicular to the target fault, and horizontal slicing. The stratigraphic bottom surface information determination module is used to determine the stratigraphic bottom surface information of the hanging wall and footwall of the fault on the 3D data after slice processing.

7. The apparatus as claimed in claim 6, characterized in that, The information between the bottom surfaces of the strata on both sides of the fault and the fault plane includes: Information on the intersection between the bottom surface of the strata on the hanging wall and the fault plane, and information on the intersection between the bottom surface of the strata on the footwall and the fault plane.

8. The apparatus as claimed in claim 5, characterized in that, The sliding types include left-hand sliding and right-hand sliding, and the slip amount determination unit is specifically used for: Based on the slip type of the target fault, the strike-slip amount corresponding to the slip type is determined according to the intersection information between the top surface of the strata on the hanging wall and footwall and the fault plane, and the intersection information between the fault plane on the hanging wall and the bottom surface of the strata.

9. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the steps of the method according to any one of claims 1 to 4.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that, When executed by a processor, the computer program implements the steps of the method according to any one of claims 1 to 4.

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