Method and device for determining strike-slip fracture forming period, equipment, medium and product

Abstract

The invention discloses a method, a device and equipment for determining a strike-slip fracture forming period, a medium and a product. The method comprises the following steps: acquiring three-dimensional seismic data of a target research area, and determining plane distribution characteristics of Kraton internal strike-slip fracture in the three-dimensional seismic data; vectorizing the Kraton internal strike-slip fracture based on the plane distribution characteristics to generate a strike-slip fracture vector diagram; obtaining a paleotectonic morphological graph of the marker horizon of the three-dimensional seismic data in each tectonic period related to the three-dimensional seismic data; and matching the strike-slip fracture vector diagram with the paleostructural form diagram of each construction period, and determining the formation period of the strike-slip fracture in the Kraton according to a matching result. Through the technical scheme provided by the embodiment of the invention, the formation period of the strike-slip fracture in the Kraton can be simply, quickly and accurately determined.

Description

Technical Field

[0001] This invention relates to the field of structural geology of oil and gas basins, and in particular to methods, apparatus, equipment, media and products for determining the formation stages of strike-slip faults. Background Technology

[0002] Numerous intracratonic strike-slip faults have been newly discovered in large oil and gas basins in central and western my country, including the Sichuan, Tarim, and Junggar basins. These faults exhibit diffuse distribution and small displacements within the basins, unlike the traditionally recognized Altyn Tagh fault-type basin margin strike-slip faults. However, the evolutionary stages and formation mechanisms of these intracratonic strike-slip faults remain unclear. Existing methods primarily determine the development period based on the longitudinal penetration of strata by the faults, using the tectonic setting of that period as the fault development mechanism. Due to the ambiguity of the longitudinal penetration of strata by the faults, these existing methods cannot fully confirm the development time of the faults. Summary of the Invention

[0003] This invention provides a method, apparatus, equipment, medium, and product for determining the formation stages of strike-slip fractures, which can simply, quickly, and accurately determine the formation stages of strike-slip fractures within a craton.

[0004] According to one aspect of the present invention, a method for determining the formation stages of strike-slip fractures is provided, comprising:

[0005] Acquire three-dimensional seismic data of the target study area and determine the planar distribution characteristics of strike-slip faults within the craton in the three-dimensional seismic data;

[0006] Based on the planar distribution characteristics, the strike-slip fractures within the craton are vectorized to generate a strike-slip fracture vector map.

[0007] Obtain the paleotectonic morphology map of the marker layer of the three-dimensional seismic data for each tectonic period involved in the three-dimensional seismic data;

[0008] The vector diagram of the strike-slip fault is matched with the paleotectonic morphology diagram of each tectonic phase, and the formation phase of the strike-slip fault within the craton is determined based on the matching results.

[0009] According to another aspect of the present invention, an apparatus for determining the formation stage of strike-slip fracture is provided, comprising:

[0010] The planar distribution feature determination module is used to acquire three-dimensional seismic data of the target study area and determine the planar distribution features of strike-slip faults within the craton in the three-dimensional seismic data.

[0011] The strike-slip fracture vector diagram generation module is used to vectorize the strike-slip fractures within the craton based on the planar distribution features, and generate a strike-slip fracture vector diagram.

[0012] The paleotectonic morphology map acquisition module is used to acquire the paleotectonic morphology map of the marker layer of the three-dimensional seismic data for each tectonic period involved in the three-dimensional seismic data.

[0013] The strike-slip fault formation period determination module is used to match the strike-slip fault vector map with the paleotectonic morphology map of each tectonic period, and determine the formation period of the strike-slip fault within the craton based on the matching results.

[0014] According to another aspect of the present invention, an electronic device is provided, the electronic device comprising:

[0015] At least one processor; and

[0016] A memory communicatively connected to the at least one processor; wherein,

[0017] The memory stores a computer program that can be executed by the at least one processor, which enables the at least one processor to perform the method for determining the formation stage of strike-slip fracture as described in any embodiment of the present invention.

[0018] According to another aspect of the present invention, a computer-readable storage medium is provided, the computer-readable storage medium storing computer instructions, the computer instructions being configured to cause a processor to execute and implement the method for determining the formation stage of strike-slip fracture as described in any embodiment of the present invention.

[0019] According to another aspect of the present invention, a computer program product is provided, the computer program product comprising a computer program that, when executed by a processor, implements the method for determining the formation stage of strike-slip fracture as described in any embodiment of the present invention.

[0020] The scheme for determining the formation period of strike-slip faults in this invention involves acquiring three-dimensional seismic data of the target study area and determining the planar distribution characteristics of strike-slip faults within the craton in the three-dimensional seismic data; vectorizing the strike-slip faults within the craton based on the planar distribution characteristics to generate a strike-slip fault vector map; obtaining the paleotectonic morphology map of the marker horizon of the three-dimensional seismic data for each tectonic period involved in the three-dimensional seismic data; matching the strike-slip fault vector map with the paleotectonic morphology map of each tectonic period, and determining the formation period of the strike-slip fault within the craton based on the matching results. Through the technical solution provided by this invention, the formation period of strike-slip faults within a craton can be determined simply, quickly, and accurately.

[0021] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of the present invention, nor is it intended to limit the scope of the invention. Other features of the invention will become readily apparent from the following description. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 A flowchart illustrating a method for determining the formation stages of a strike-slip fracture according to Embodiment 1 of the present invention;

[0024] Figure 2 A schematic diagram illustrating the planar distribution characteristics of a strike-slip fracture within a craton, provided as an embodiment of the present invention;

[0025] Figure 3 This is a schematic diagram of seismic horizon interpretation results provided in an embodiment of the present invention;

[0026] Figure 4 This is a schematic diagram illustrating the relationship between strike-slip faults in the strike-slip fault vector diagram and ancient tectonic morphology in the paleotectonic morphology diagram provided in this embodiment of the invention.

[0027] Figure 5 A flowchart illustrating a method for determining the formation stages of a strike-slip fracture according to Embodiment 2 of the present invention;

[0028] Figure 6 This is a schematic diagram of a device for determining the formation stage of a strike-slip fracture according to Embodiment 3 of the present invention;

[0029] Figure 7 A schematic diagram of an electronic device for implementing the method for determining the formation stage of strike-slip fracture according to an embodiment of the present invention. Detailed Implementation

[0030] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0031] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0032] Example 1

[0033] Figure 1 This is a flowchart illustrating a method for determining the formation stage of a strike-slip fracture according to Embodiment 1 of the present invention. This embodiment is applicable to situations where the formation stage of a strike-slip fracture needs to be determined. This method can be executed by a device for determining the formation stage of a strike-slip fracture. This device can be implemented in hardware and / or software and can be configured in an electronic device. Figure 1 As shown, the method includes:

[0034] S110. Acquire three-dimensional seismic data of the target study area and determine the planar distribution characteristics of strike-slip faults within the craton in the three-dimensional seismic data.

[0035] In this embodiment of the invention, the target study area is an oil and gas basin region used to study the formation stages of strike-slip faults within a craton. Three-dimensional seismic data of the target study area is acquired and analyzed to determine the planar distribution characteristics of strike-slip faults within the craton. Optionally, determining the planar distribution characteristics of strike-slip faults within the craton in the three-dimensional seismic data includes: extracting coherence attribute volumes from the three-dimensional seismic data; determining the marker horizons of the three-dimensional seismic data and interpreting the marker horizons on the seismic profiles of the three-dimensional seismic data to form a comprehensive stratigraphic interpretation result; based on the comprehensive stratigraphic interpretation result and the coherence attribute volumes, extracting bedding coherence slices of the marker horizons from the three-dimensional seismic data, and determining the planar distribution characteristics of strike-slip faults within the craton in the three-dimensional seismic data based on the bedding coherence slices of the marker horizons.

[0036] For example, three-dimensional seismic data is analyzed to extract coherent attribute volumes and determine marker horizons. Optionally, determining the marker horizons of the three-dimensional seismic data includes: analyzing the three-dimensional seismic data to determine the stratigraphic segment with the most developed strike-slip fault within the craton, and using the horizon corresponding to the stratigraphic segment with the most developed strike-slip fault within the craton as the marker horizon. It is understood that the horizon corresponding to the stratigraphic segment with the most developed strike-slip fault within the craton in the three-dimensional seismic data is used as the marker horizon in the three-dimensional seismic data. The marker horizons are interpreted on each seismic profile of the three-dimensional seismic data to form a full-area horizon interpretation result. Optionally, interpreting the marker horizons on the seismic profiles of the three-dimensional seismic data to form a full-area horizon interpretation result includes: interpreting the marker horizons on the seismic profiles of the three-dimensional seismic data at preset density intervals to form an initial horizon interpretation result; and performing interpolation operations on the initial horizon interpretation result to form a full-area horizon interpretation result. Understandably, in each seismic profile of the 3D seismic data, marker horizons are interpreted at certain density intervals to generate initial horizon interpretation results. Then, interpolation is performed on these initial horizon interpretation results to form the overall horizon interpretation results for the entire region. Based on the overall horizon interpretation results and coherence property volumes, bedding coherence slices of the marker horizons are extracted from the 3D seismic data, and the planar distribution characteristics of strike-slip faults within the craton in the 3D seismic data are determined based on these bedding coherence slices. For example, Figure 2 This is a schematic diagram illustrating the planar distribution characteristics of a strike-slip fracture within a craton, as provided in an embodiment of the present invention.

[0037] S120. Based on the planar distribution characteristics, the strike-slip fracture within the craton is vectorized to generate a strike-slip fracture vector diagram.

[0038] In this embodiment of the invention, the strike-slip fractures within the craton are vectorized based on the planar distribution characteristics to generate a strike-slip fracture vector map. It can be understood that the strike-slip fractures within the craton in the stratigraphic coherence slice of the marker layer are vectorized based on the planar distribution characteristics to generate a strike-slip fracture vector map.

[0039] Optionally, the strike-slip faults within the craton are vectorized based on the planar distribution characteristics to generate a strike-slip fault vector map. This includes: determining the distribution direction of the strike-slip faults within the craton based on the planar distribution characteristics; grouping the strike-slip faults within the craton based on the distribution direction; and vectorizing the grouped strike-slip faults within the craton to generate a strike-slip fault vector map. For example, the distribution direction of strike-slip faults within the craton in a bedding coherence slice of a marker layer is determined based on the planar distribution characteristics. The distribution direction of the strike-slip faults within the craton can be one or multiple. The strike-slip faults within the craton are grouped according to the distribution direction, wherein strike-slip faults within the craton with the same distribution direction are grouped together. Optionally, the geometric characteristics and properties of strike-slip faults within the craton (whether the fault is a normal fault, a reverse fault, or a strike-slip fault, etc.) in the seismic profile of 3D seismic data can also be obtained. The rationality of grouping the strike-slip faults within the craton based on the distribution direction can be judged based on the geometric characteristics and properties of the strike-slip faults within the craton. If the grouping results are unreasonable, they can be manually adjusted. Then, the strike-slip fractures within the grouped cratons are vectorized to generate a strike-slip fracture vector map.

[0040] S130. Obtain the paleotectonic morphology map of the marker layer of the three-dimensional seismic data for each tectonic period involved in the three-dimensional seismic data.

[0041] In this embodiment of the invention, a marker horizon is determined from the 3D seismic data, wherein the marker horizon is the horizon corresponding to the most developed strike-slip fault segment within the craton. Paleotectonic morphology maps of the marker horizon for each tectonic phase involved in the 3D seismic data are obtained. Optionally, obtaining the paleotectonic morphology maps of the marker horizon for each tectonic phase involved in the 3D seismic data includes: determining the tectonic evolution geological information of the target study area, and determining each tectonic phase involved in the 3D seismic data and the corresponding seismic horizon based on the tectonic evolution geological information; interpreting the seismic horizon corresponding to each tectonic phase on the seismic profile of the 3D seismic data to form a seismic horizon interpretation result; and performing layer flattening processing on the seismic horizon interpretation result corresponding to each tectonic phase to obtain the paleotectonic morphology map of the marker horizon for the corresponding tectonic phase.

[0042] For example, tectonic evolution geological information of the target study area corresponding to 3D seismic data is obtained, and the various tectonic phases and corresponding seismic horizons involved in the 3D seismic data are determined based on the tectonic evolution geological information; wherein, there is a one-to-one correspondence between seismic horizons and tectonic phases. Seismic horizons corresponding to each tectonic phase are interpreted in each seismic profile of the 3D seismic data, forming seismic horizon interpretation results. That is, seismic horizons corresponding to all tectonic phases are interpreted in each seismic profile of the 3D seismic data, forming seismic horizon interpretation results. It can be understood that the seismic horizon interpretation results include interpretation results for seismic horizons corresponding to all tectonic phases. Layer flattening processing is performed on the seismic horizon interpretation results corresponding to each tectonic phase to obtain the paleotectonic morphology map of the marker horizon in the corresponding tectonic phase. For example, Figure 3 This is a schematic diagram illustrating the seismic horizon interpretation results provided in an embodiment of the present invention. Figure 3 As shown, the green and blue lines represent seismic horizons in different tectonic phases. For example, the green line represents the seismic horizons of the first tectonic phase, the blue line represents the seismic horizons of the second tectonic phase, and the yellow line represents the marker horizon corresponding to the most developed strike-slip fault segment within the cratonic zone. By flattening the seismic horizons of the first tectonic phase (i.e., the green line), we can restore the basin's tectonic morphology before stratigraphic deposition at that time, thus obtaining a paleotectonic map of the marker horizon (i.e., the yellow line) in the first tectonic phase (i.e., the tectonic phase represented by the green line). Similarly, by flattening the seismic horizons of the second tectonic phase (i.e., the blue line), we can restore the basin's tectonic morphology before stratigraphic deposition at that time, thus obtaining a paleotectonic map of the marker horizon in the second tectonic phase (i.e., the tectonic phase represented by the blue line).

[0043] S140. Match the strike-slip fault vector diagram with the paleotectonic morphology diagram of each tectonic phase, and determine the formation phase of the strike-slip fault within the craton based on the matching results.

[0044] In this embodiment of the invention, the strike-slip fault vector map is overlaid with the paleotectonic morphology map of each tectonic phase to determine the correlation between each group of strike-slip faults in the vector map and the paleotectonic morphology map. The correlation includes perpendicularity, parallelism, parallel conjugate angles, or perpendicular conjugate angles. Strike-slip faults and tectonic phases with significant directional correlation are grouped together; that is, the tectonic phases corresponding to the paleotectonic morphology maps that have significant directional correlation with the strike-slip faults in the vector map are taken as the formation phases of strike-slip faults within the craton. For example, Figure 4 This is a schematic diagram illustrating the relationship between strike-slip faults in the strike-slip fault vector diagram and ancient tectonic morphology in the paleotectonic morphology diagram provided in the embodiments of the present invention.

[0045] The scheme for determining the formation period of strike-slip faults in this invention involves acquiring three-dimensional seismic data of the target study area and determining the planar distribution characteristics of strike-slip faults within the craton in the three-dimensional seismic data; vectorizing the strike-slip faults within the craton based on the planar distribution characteristics to generate a strike-slip fault vector map; obtaining the paleotectonic morphology map of the marker horizon of the three-dimensional seismic data for each tectonic period involved in the three-dimensional seismic data; matching the strike-slip fault vector map with the paleotectonic morphology map of each tectonic period, and determining the formation period of the strike-slip fault within the craton based on the matching results. Through the technical solution provided by this invention, the formation period of strike-slip faults within a craton can be determined simply, quickly, and accurately.

[0046] Example 2

[0047] Figure 5 This is a flowchart of a method for determining the formation stages of strike-slip fractures according to Embodiment 2 of the present invention, as shown below. Figure 5 As shown, the method includes:

[0048] S510. Obtain three-dimensional seismic data of the target study area and extract the coherence attribute volume of the three-dimensional seismic data.

[0049] S520. Analyze the three-dimensional seismic data to determine the stratigraphic segment with the most developed strike-slip fault within the craton in the three-dimensional seismic data, and use the stratigraphic position corresponding to the stratigraphic segment with the most developed strike-slip fault within the craton as the marker stratigraphic position.

[0050] S530. Interpret the marker horizons on the seismic profiles of the three-dimensional seismic data at preset density intervals to form initial horizon interpretation results, and perform interpolation operations on the initial horizon interpretation results to form full-area horizon interpretation results.

[0051] S540. Based on the stratigraphic interpretation results of the entire region and the coherence attribute volume, extract the marker bedding coherence slices from the three-dimensional seismic data, and determine the planar distribution characteristics of strike-slip faults within the craton in the three-dimensional seismic data based on the marker bedding coherence slices.

[0052] S550. Determine the distribution direction of the strike-slip fracture within the craton based on the planar distribution characteristics.

[0053] S560. Based on the distribution direction, the strike-slip fractures within the craton are grouped, and the grouped strike-slip fractures within the craton are vectorized to generate a strike-slip fracture vector map.

[0054] S570. Determine the tectonic evolution geological information of the target study area, and determine the various tectonic periods involved in the three-dimensional seismic data and the seismic horizons corresponding to each tectonic period based on the tectonic evolution geological information.

[0055] S580. The seismic profile of the three-dimensional seismic data is interpreted for the seismic horizons corresponding to each tectonic period to form seismic horizon interpretation results. The seismic horizon interpretation results corresponding to each tectonic period are then subjected to layer flattening processing to obtain the paleotectonic morphology map of the marker horizon in the corresponding tectonic period.

[0056] S590. Match the strike-slip fault vector diagram with the paleotectonic morphology diagram of each tectonic phase, and determine the formation phase of the strike-slip fault within the craton based on the matching results.

[0057] In this embodiment of the invention, taking a strike-slip fault within a Jurassic craton in a certain region as an example, the process of determining the formation period of the aforementioned strike-slip fault is explained as follows: 1) Select a large area of ​​3D seismic data with good Jurassic imaging quality, and use seismic interpretation software such as Geoeast to extract the coherence attribute volume of the data volume; through observation, it is found that the strike-slip fault within the Shaxi-Miaosha-2 segment of the Jurassic craton is well-developed, and the bottom boundary of the Shaxi-2 segment is used as a marker horizon to complete the seismic interpretation of this horizon in the 3D data volume; using the interpreted horizon and coherence attribute volume, extract the bedding coherence slice of the bottom boundary of the Shaxi-2 segment to characterize its fault plane distribution characteristics. 2) Based on the bedding coherence sections of the Sha-2 Member's basal boundary, the fault directions were grouped. The results showed that four main directions of faults were developed, including NE-E, NW-, NE-, and a group of large NW-oriented faults. Analysis of the geometric characteristics and properties of the faults in each direction based on typical seismic profiles determined that the NE-E, NW-, and NE-oriented faults are intracratonic strike-slip faults in different directions, while the large NW-oriented fault is a reverse fault. Vectorization software was used to vectorize the different groups of faults. 3) Based on the understanding of regional tectonic evolution, it was determined that the study area was mainly influenced by Yanshanian and Himalayan tectonic activities after the Jurassic. Therefore, the Middle and Upper Cretaceous landmark strata and the Cretaceous basal boundary strata were selected for interpretation. Layer flattening techniques were used to reconstruct the current tectonic morphology, Yanshanian paleotectonic morphology, and Late Jurassic paleotectonic morphology of the study area, forming a paleotectonic map of the key tectonic periods. 4) Overlay the vectorized fracture distribution characteristics obtained in step 2 with paleotectonic maps from different periods to clarify the correlation between fracture direction and tectonic axis; comparative evaluation found that the direction of the NE-STY strike-slip fault in the region is parallel to the current tectonic direction caused by Himalayan deformation, and the direction of the NW-STY strike-slip fault matches the direction of the NW-STY folds caused by the early Yanshanian period; thus, the formation period of strike-slip faults in different directions can be identified. The NE-STY strike-slip fault was formed in the Himalayan period, and the NW-STY strike-slip fault was formed in the early Yanshanian period.

[0058] Example 3

[0059] Figure 6 This is a schematic diagram of a device for determining the formation stage of a strike-slip fracture according to Embodiment 3 of the present invention. Figure 6 As shown, the device includes:

[0060] The planar distribution feature determination module 610 is used to acquire three-dimensional seismic data of the target study area and determine the planar distribution features of strike-slip faults within the craton in the three-dimensional seismic data.

[0061] The strike-slip fracture vector diagram generation module 620 is used to vectorize the strike-slip fracture within the craton based on the planar distribution features and generate a strike-slip fracture vector diagram.

[0062] The paleotectonic morphology acquisition module 630 is used to acquire the paleotectonic morphology map of the marker layer of the three-dimensional seismic data for each tectonic period involved in the three-dimensional seismic data.

[0063] The strike-slip fault formation period determination module 640 is used to match the strike-slip fault vector map with the paleotectonic morphology map of each tectonic period, and determine the formation period of the strike-slip fault within the craton based on the matching results.

[0064] Optionally, the planar layout feature determination module includes:

[0065] A coherent attribute volume extraction unit is used to extract the coherent attribute volume of the three-dimensional seismic data;

[0066] The whole-area stratigraphic interpretation result forming unit is used to determine the marker horizon of the three-dimensional seismic data and interpret the marker horizon on the seismic profile of the three-dimensional seismic data to form the whole-area stratigraphic interpretation result;

[0067] The planar distribution feature determination unit is used to extract marker bedding coherence slices from the three-dimensional seismic data based on the stratigraphic interpretation results of the whole area and the coherence attribute volume, and to determine the planar distribution features of strike-slip faults within the craton in the three-dimensional seismic data based on the marker bedding coherence slices.

[0068] Optionally, the whole-area stratigraphic interpretation result forming unit is used for:

[0069] The three-dimensional seismic data is analyzed to determine the stratigraphic segment with the most developed strike-slip fault within the craton, and the stratigraphic position corresponding to the stratigraphic segment with the most developed strike-slip fault within the craton is used as the marker stratigraphic position.

[0070] Optionally, the whole-area stratigraphic interpretation result forming unit is used for:

[0071] The marker horizons in the three-dimensional seismic data are interpreted at preset density intervals to form initial horizon interpretation results.

[0072] Interpolation is performed on the initial stratigraphic interpretation results to form the full-area stratigraphic interpretation results.

[0073] Optionally, the strike-slip fracture vector diagram generation module is used for:

[0074] The distribution direction of the strike-slip fractures within the craton is determined based on the aforementioned planar distribution characteristics;

[0075] The strike-slip fractures within the craton are grouped based on the distribution direction, and the grouped strike-slip fractures are vectorized to generate a strike-slip fracture vector map.

[0076] Optionally, the paleostructural morphology acquisition module is used for:

[0077] Determine the tectonic evolution geological information of the target study area, and determine the various tectonic phases involved in the three-dimensional seismic data and the seismic horizons corresponding to each tectonic phase based on the tectonic evolution geological information;

[0078] The seismic profiles of the three-dimensional seismic data are interpreted for the seismic horizons corresponding to each tectonic period to form seismic horizon interpretation results.

[0079] The seismic horizon interpretation results corresponding to each tectonic period are subjected to horizon flattening to obtain paleotectonic morphology maps of the marker horizons in the corresponding tectonic periods.

[0080] The device for determining the formation stage of strike-slip fracture provided in this embodiment of the invention can execute the method for determining the formation stage of strike-slip fracture provided in any embodiment of the invention, and has the corresponding functional modules and beneficial effects of the method.

[0081] Example 4

[0082] Figure 7 A schematic diagram of an electronic device 10 that can be used to implement embodiments of the present invention is shown. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital processors, cellular phones, smartphones, wearable devices (e.g., helmets, glasses, watches, etc.), and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely illustrative and are not intended to limit the implementation of the invention described and / or claimed herein.

[0083] like Figure 7 As shown, the electronic device 10 includes at least one processor 11 and a memory, such as a read-only memory (ROM) 12 or a random access memory (RAM) 13, communicatively connected to the at least one processor 11. The memory stores computer programs executable by the at least one processor. The processor 11 can perform various appropriate actions and processes based on the computer program stored in the ROM 12 or loaded from storage unit 18 into the RAM 13. The RAM 13 may also store various programs and data required for the operation of the electronic device 10. The processor 11, ROM 12, and RAM 13 are interconnected via a bus 14. An input / output (I / O) interface 15 is also connected to the bus 14.

[0084] Multiple components in electronic device 10 are connected to I / O interface 15, including: input unit 16, such as keyboard, mouse, etc.; output unit 17, such as various types of displays, speakers, etc.; storage unit 18, such as disk, optical disk, etc.; and communication unit 19, such as network card, modem, wireless transceiver, etc. Communication unit 19 allows electronic device 10 to exchange information / data with other devices through computer networks such as the Internet and / or various telecommunications networks.

[0085] Processor 11 can be a variety of general-purpose and / or special-purpose processing components with processing and computing capabilities. Some examples of processor 11 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various special-purpose artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any suitable processor, controller, microcontroller, etc. Processor 11 performs the various methods and processes described above, such as methods for determining the formation stages of strike-slip fractures.

[0086] In some embodiments, the method for determining the formation stage of strike-slip fracture can be implemented as a computer program tangibly contained in a computer-readable storage medium, such as storage unit 18. In some embodiments, part or all of the computer program can be loaded and / or installed on electronic device 10 via ROM 12 and / or communication unit 19. When the computer program is loaded into RAM 13 and executed by processor 11, one or more steps of the method for determining the formation stage of strike-slip fracture described above can be performed. Alternatively, in other embodiments, processor 11 can be configured to perform the method for determining the formation stage of strike-slip fracture by any other suitable means (e.g., by means of firmware).

[0087] Various embodiments of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field-programmable gate arrays (FPGAs), application-specific integrated circuits (ASICs), application-specific standard products (ASSPs), systems-on-a-chip (SoCs), payload-programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments may include implementations in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which may be a dedicated or general-purpose programmable processor, capable of receiving data and instructions from a storage system, at least one input device, and at least one output device, and transmitting data and instructions to the storage system, the at least one input device, and the at least one output device.

[0088] Computer programs used to implement the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, such that when executed by the processor, the computer programs cause the functions / operations specified in the flowcharts and / or block diagrams to be performed. The computer programs may be executed entirely on a machine, partially on a machine, or as a standalone software package, partially on a machine and partially on a remote machine, or entirely on a remote machine or server.

[0089] In the context of this invention, a computer-readable storage medium can be a tangible medium that may contain or store a computer program for use by or in conjunction with an instruction execution system, apparatus, or device. A computer-readable storage medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination thereof. Alternatively, a computer-readable storage medium may be a machine-readable signal medium. More specific examples of machine-readable storage media include electrical connections based on one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fibers, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof.

[0090] To provide interaction with a user, the systems and techniques described herein can be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and pointing device (e.g., a mouse or trackball) through which the user provides input to the electronic device. Other types of devices can also be used to provide interaction with the user; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including sound input, voice input, or tactile input).

[0091] The systems and technologies described herein can be implemented in computing systems that include backend components (e.g., as data servers), or computing systems that include middleware components (e.g., application servers), or computing systems that include frontend components (e.g., user computers with graphical user interfaces or web browsers through which users can interact with implementations of the systems and technologies described herein), or any combination of such backend, middleware, or frontend components. The components of the system can be interconnected via digital data communication of any form or medium (e.g., communication networks). Examples of communication networks include local area networks (LANs), wide area networks (WANs), blockchain networks, and the Internet.

[0092] A computing system can include clients and servers. Clients and servers are generally located far apart and typically interact through communication networks. The client-server relationship is created by computer programs running on the respective computers and having a client-server relationship with each other. The server can be a cloud server, also known as a cloud computing server or cloud host, which is a hosting product within the cloud computing service system to address the shortcomings of traditional physical hosts and VPS services, such as high management difficulty and weak business scalability.

[0093] This invention also provides a computer program product, which includes a computer program that, when executed by a processor, implements the method for determining the formation stage of strike-slip fracture as described in any embodiment of this invention.

[0094] It should be understood that the various forms of processes shown above can be used, with steps reordered, added, or deleted. For example, the steps described in this invention can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this invention can be achieved, and this is not limited herein.

[0095] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A method for determining the formation stages of strike-slip fractures, characterized in that, include: Acquire three-dimensional seismic data of the target study area and determine the planar distribution characteristics of strike-slip faults within the craton in the three-dimensional seismic data; Based on the planar distribution characteristics, the strike-slip fractures within the craton are vectorized to generate a strike-slip fracture vector map. Obtain the paleotectonic morphology map of the marker layer of the three-dimensional seismic data for each tectonic period involved in the three-dimensional seismic data; The vector diagram of the strike-slip fault is matched with the paleotectonic morphology diagram of each tectonic phase, and the formation phase of the strike-slip fault within the craton is determined based on the matching results.

2. The method according to claim 1, characterized in that, Determining the planar distribution characteristics of strike-slip faults within the craton in the three-dimensional seismic data includes: Extract the coherence attribute volume of the three-dimensional seismic data; The marker horizons of the three-dimensional seismic data are determined, and the seismic profiles of the three-dimensional seismic data are interpreted to form a stratigraphic interpretation result for the entire region. Based on the stratigraphic interpretation results of the entire region and the coherence attribute volume, bedding coherence slices of marker bedding layers are extracted from the three-dimensional seismic data, and the planar distribution characteristics of strike-slip faults within the craton in the three-dimensional seismic data are determined based on the bedding coherence slices of marker bedding layers.

3. The method according to claim 2, characterized in that, Determining the marker horizon of the three-dimensional seismic data includes: The three-dimensional seismic data is analyzed to determine the stratigraphic segment with the most developed strike-slip fault within the craton, and the stratigraphic position corresponding to the stratigraphic segment with the most developed strike-slip fault within the craton is used as the marker stratigraphic position.

4. The method according to claim 2, characterized in that, The seismic profiles of the three-dimensional seismic data are interpreted to form a comprehensive stratigraphic interpretation result, including: The marker horizons in the three-dimensional seismic data are interpreted at preset density intervals to form initial horizon interpretation results. Interpolation is performed on the initial stratigraphic interpretation results to form the full-area stratigraphic interpretation results.

5. The method according to claim 1, characterized in that, Based on the aforementioned planar distribution characteristics, the strike-slip fractures within the craton are vectorized to generate a strike-slip fracture vector map, including: The distribution direction of the strike-slip fractures within the craton is determined based on the aforementioned planar distribution characteristics; The strike-slip fractures within the craton are grouped based on the distribution direction, and the grouped strike-slip fractures are vectorized to generate a strike-slip fracture vector map.

6. The method according to claim 1, characterized in that, Obtain the paleotectonic morphology map of the marker stratigraphic position of the three-dimensional seismic data for each tectonic period involved in the three-dimensional seismic data, including: Determine the tectonic evolution geological information of the target study area, and determine the various tectonic phases involved in the three-dimensional seismic data and the seismic horizons corresponding to each tectonic phase based on the tectonic evolution geological information; The seismic profiles of the three-dimensional seismic data are interpreted for the seismic horizons corresponding to each tectonic period to form seismic horizon interpretation results. The seismic horizon interpretation results corresponding to each tectonic period are subjected to horizon flattening to obtain paleotectonic morphology maps of the marker horizons in the corresponding tectonic periods.

7. A device for determining the formation stage of strike-slip fracture, characterized in that, include: The planar distribution feature determination module is used to acquire three-dimensional seismic data of the target study area and determine the planar distribution features of strike-slip faults within the craton in the three-dimensional seismic data. The strike-slip fracture vector diagram generation module is used to vectorize the strike-slip fractures within the craton based on the planar distribution features, and generate a strike-slip fracture vector diagram. The paleotectonic morphology map acquisition module is used to acquire the paleotectonic morphology map of the marker layer of the three-dimensional seismic data for each tectonic period involved in the three-dimensional seismic data. The strike-slip fault formation period determination module is used to match the strike-slip fault vector map with the paleotectonic morphology map of each tectonic period, and determine the formation period of the strike-slip fault within the craton based on the matching results.

8. An electronic device, characterized in that, The electronic device includes: At least one processor; and A memory communicatively connected to the at least one processor; wherein, The memory stores a computer program executable by the at least one processor, which is executed by the at least one processor to enable the at least one processor to perform the method for determining the formation stage of the strike-slip fracture as described in any one of claims 1-6.

9. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions that cause a processor to execute the method for determining the formation stage of the strike-slip fracture as described in any one of claims 1-6.

10. A computer program product, characterized in that, The computer program product includes a computer program that, when executed by a processor, implements the method for determining the formation stage of strike-slip fracture according to any one of claims 1-6.

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