Fracture complex area seismic wavelet extraction method, electronic equipment, storage medium and device

Abstract

The invention discloses a fracture complex area seismic wavelet extraction method, electronic equipment, a storage medium and a device. The method comprises the following steps: forming a first fault hanging wall data body and a first fault footwall data body based on well bypass seismic data; based on the well-side synthetic seismic trace, the first fault hanging wall data body and the first fault footwall data, a second fault hanging wall data body and a second fault footwall data body are obtained through fusion; respectively acquiring corresponding hanging wall seismic wavelets and footwall seismic wavelets based on the second fault hanging wall data body and the second fault footwall data body; and based on the hanging wall seismic wavelets and the footwall seismic wavelets, fusion seismic wavelets are obtained through fusion. According to the method, the upper and lower wall data of the fault are separated, the forward modeling data are fused to obtain the upper and lower wall seismic data, the upper wall seismic wavelets and the lower wall seismic wavelets are extracted, the fused seismic wavelets are obtained through fusion, and the seismic wavelets which are more concentrated in main lobe energy, stable in phase and less affected by fault zone development are extracted.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of oil exploration, and more particularly relates to a method for extracting a seismic wavelet in a complex fault area, an electronic device, a storage medium and an apparatus. BACKGROUND

[0002] The conventional seismic wavelet extraction method is very mature, which is divided into two categories: 1. selecting a time range in seismic data directly to extract a seismic wavelet, which has the advantages of high matching degree with seismic data, but has the disadvantage of poor generalization, i.e. low similarity between wells; 2. based on well data, a seismic wavelet is extracted by a convolution model through a synthetic record calibration method, which has the advantages of high coincidence degree at well points and can control the difference between wells, and can be used as a seismic wavelet of inversion data. This method is the mainstream method for extracting a seismic wavelet at present. However, for a fault development zone, both of the two seismic wavelet extraction methods are difficult to extract a seismic wavelet with high coincidence with actual seismic data due to the influence of the fault zone.

[0003] The information disclosed in the background section of this application is only intended to deepen the understanding of the general background of the application, and should not be regarded as acknowledging or implying in any form that the information constitutes prior art known to those skilled in the art. SUMMARY

[0004] The purpose of the present application is to provide a method for extracting a seismic wavelet in a complex fault area, an electronic device, a storage medium and an apparatus, which can extract a seismic wavelet with more concentrated main lobe energy, stable phase and less influence of fault development, and the seismic wavelet has high coincidence with actual seismic data, which is beneficial to subsequent reservoir prediction work such as prestack inversion.

[0005] To achieve the above purpose, the present application provides a method for extracting a seismic wavelet in a complex fault area, an electronic device, a storage medium and an apparatus.

[0006] According to a first aspect of the present application, a method for extracting a seismic wavelet in a complex fault area is provided, comprising:

[0007] forming a first hanging wall data volume and a first footwall data volume based on well trace seismic data;

[0008] fusing a second hanging wall data volume and a second footwall data volume based on well trace synthetic seismic traces, the first hanging wall data volume and the first footwall data;

[0009] obtaining corresponding hanging wall seismic wavelets and footwall seismic wavelets based on the second hanging wall data volume and the second footwall data volume, respectively;

[0010] Fusion is performed on the upper disc seismic wavelet and the lower disc seismic wavelet to obtain a fusion seismic wavelet.

[0011] Optionally, the forming of the first fault upper disc data volume and the first fault lower disc data volume based on the wellside seismic data specifically comprises:

[0012] The wellside seismic data is subjected to structural interpretation to distinguish a faulted zone and the upper disc and the lower disc of the fault, and the data of the upper disc and the lower disc are extracted separately to form the fault upper disc data volume and the fault lower disc data volume.

[0013] Optionally, the fusion of the second fault upper disc data volume and the second fault lower disc data volume based on the wellside synthetic seismic trace, the first fault upper disc data volume and the first fault lower disc data specifically comprises:

[0014] The wellside synthetic seismic trace is fused with the first fault upper disc data volume and the first fault lower disc data volume respectively according to a set first weighting ratio to obtain the second fault upper disc data volume and the second fault lower disc data volume.

[0015] Optionally, the obtaining of the corresponding upper disc seismic wavelet and lower disc seismic wavelet based on the second fault upper disc data volume and the second fault lower disc data volume specifically comprises:

[0016] The second fault upper disc data volume and the second fault lower disc data volume are subjected to synthetic record calibration respectively to obtain the corresponding upper disc seismic wavelet and lower disc seismic wavelet.

[0017] Optionally, the fusion of the fusion seismic wavelet based on the upper disc seismic wavelet and the lower disc seismic wavelet specifically comprises:

[0018] The upper disc seismic wavelet and the lower disc seismic wavelet are fused according to a set second weighting ratio to obtain the fusion seismic wavelet.

[0019] Optionally, the wellside synthetic seismic trace is obtained by selecting a zero-phase wavelet corresponding to the entire target layer of the wellside seismic data and convolving the zero-phase wavelet with the logging data.

[0020] Optionally, the method further comprises:

[0021] The wellside synthetic seismic record is formed based on the fusion seismic wavelet and the logging data, and the wellside synthetic seismic record is compared with the original seismic data to obtain the similarity between the wellside synthetic seismic record and the original seismic data.

[0022] According to a second aspect of the present application, a device for extracting a seismic wavelet in a faulted zone is provided, comprising:

[0023] A data generation module is used to generate the first fault hanging wall data volume and the first fault footwall data volume based on the well-side seismic data;

[0024] The first fusion module is used to fuse the second fault hanging wall data volume and the second fault footwall data volume based on the well-side synthetic seismic trace, the first fault hanging wall data volume and the first fault footwall data volume;

[0025] The acquisition module is used to acquire the corresponding hanging wall seismic wavelet and the footwall seismic wavelet based on the hanging wall data volume of the second fault and the footwall data volume of the second fault, respectively.

[0026] The second fusion module is used to fuse the upper plate seismic wavelet and the lower plate seismic wavelet to obtain a fused seismic wavelet.

[0027] According to a third aspect of the present invention, an electronic device is provided, the electronic device comprising:

[0028] At least one processor; and,

[0029] A memory communicatively connected to the at least one processor; wherein,

[0030] The memory stores instructions that can be executed by the at least one processor, which, when executed by the at least one processor, enables the at least one processor to perform the seismic wavelet extraction method for fracture complex zones as described in any of the first aspects.

[0031] According to a fourth aspect of the invention, a non-transitory computer-readable storage medium is provided, which stores computer instructions for causing a computer to execute the seismic wavelet extraction method for fracture complex zones as described in any of the first aspects.

[0032] The beneficial effects of this invention are as follows: Based on the detailed interpretation of the structure, this invention separates the upper and lower plate data of the fault and then fuses the forward modeling data to obtain upper and lower plate seismic data with high correlation to the synthetic record. Then, it extracts the upper plate seismic wavelet and the lower plate seismic wavelet, and fuses the upper plate seismic wavelet and the lower plate seismic wavelet to obtain the fused seismic wavelet. This achieves the extraction of seismic wavelets with more concentrated main lobe energy, stable phase and less affected by fault zone development. This seismic wavelet has high consistency with the actual seismic data, which is beneficial to subsequent reservoir prediction work such as pre-stack inversion.

[0033] The system of the present invention has other features and advantages that will be apparent from or will be set forth in detail in the accompanying drawings and following detailed description, which together serve to explain the particular principles of the invention. Attached Figure Description

[0034] The above and other objects, features and advantages of the present invention will become more apparent from the accompanying drawings, in which like reference numerals generally denote like parts.

[0035] Figure 1 A flowchart illustrating the steps of a seismic wavelet extraction method for fractured complex regions according to the present invention is shown.

[0036] Figure 2 A flowchart illustrating the steps of a seismic wavelet extraction method for fractured complex regions according to Embodiment 2 of the present invention is shown.

[0037] Figure 3 A schematic diagram of Embodiment 2 according to the present invention is shown.

[0038] Figure 4 A schematic diagram is shown illustrating the differentiation of fault hanging wall and footwall seismic data based on structural interpretation according to Embodiment 2 of the present invention.

[0039] Figure 5 A schematic diagram of a phase-matched wavelet of seismic data according to Embodiment 2 of the present invention is shown.

[0040] Figure 6 A schematic diagram of a zero-phase wavelet according to Embodiment 2 of the present invention is shown.

[0041] Figure 7 A schematic diagram is shown below illustrating the comparison between seismic wavelet extracted from the hanging wall of a fault and a zero-phase wavelet by setting a time range, according to Embodiment 2 of the present invention.

[0042] Figure 8 A schematic diagram showing the superposition of the disk wave above the fault, the disk wave below the fault, and the fusion sub-wave is shown according to Embodiment 2 of the present invention.

[0043] Figure 9 A schematic diagram of a seismic wavelet extraction device for fracture complex areas according to Embodiment 3 of the present invention is shown. Detailed Implementation

[0044] The invention will now be described in more detail with reference to the accompanying drawings. While preferred embodiments of the invention are shown in the drawings, it should be understood that the invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the invention will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0045] like Figure 1 As shown, a method for seismic wavelet extraction in fault-complex areas according to the present invention includes:

[0046] The data volumes of the hanging wall and footwall of the first fault were formed based on the seismic data from the well-side channel;

[0047] Based on the well-side synthetic seismic traces, the data volume of the hanging wall of the first fault and the data volume of the footwall of the first fault, the data volume of the hanging wall of the second fault and the data volume of the footwall of the second fault are fused together;

[0048] Based on the data volume of the hanging wall of the second fault and the data volume of the footwall of the second fault, the corresponding hanging wall seismic wavelets and footwall seismic wavelets are obtained respectively.

[0049] Based on the upper plate seismic wavelet and the lower plate seismic wavelet, a fused seismic wavelet is obtained.

[0050] Specifically, the basic principle of this invention is as follows: Due to the influence of fault zones, the synthetic records generated by well logging curves have poor consistency with actual seismic data, leading to issues in the extraction of wellbore wavelets. This invention calibrates the synthetic records for wellbore seismic data, selecting the entire target layer to extract the corresponding zero-phase wavelet and the wavelet with phase matching the seismic data. Based on the location of the fault footwall, a corresponding time window is set to extract the corresponding zero-phase wavelet and the wavelet with phase matching the seismic data from the fault footwall data. However, it is found that simply setting the time window is insufficient to eliminate the influence of the fault hanging wall on the footwall wavelet extraction. Similarly, based on the location of the fault hanging wall, a corresponding time window is set to extract the corresponding zero-phase wavelet from the fault hanging wall data. When obtaining wavelets that are phase-matched with seismic data, it becomes apparent that simply setting a time window is insufficient to eliminate the influence of the footwall on the upper plate wavelet extraction, resulting in the inability to obtain stable wavelets. This is because the setting of the time window alone is also affected by seismic data from the other side of the fault. Therefore, this invention separates the footwall and upper plate of the fault and then fuses the forward modeling data to obtain two sets of post-stack data, one dominated by the footwall data and the other by the footwall data. This data has a high correlation with the synthetic records obtained through well logging, thus yielding stable wavelets. The wavelets extracted from the footwall and upper plate data are then fused to obtain the final wavelet, which is unaffected by the fault zone and relatively stable, providing a good data foundation for subsequent pre-stack inversion.

[0051] This invention first performs structural interpretation on well-side seismic data, distinguishing the hanging wall and footwall of fault development zones and faults, and extracting the data from the hanging wall and footwall separately to form fault hanging wall data volumes and fault footwall data volumes, respectively. Then, the well-side synthetic seismic traces (forward modeling data) are fused with the first fault hanging wall data volume and the first fault footwall data volume according to a set first weighting ratio to obtain the second fault hanging wall data volume and the second fault footwall data volume. The first weighting ratio can be set according to actual conditions, and the sum of each ratio in the first weighting ratio is 1. For example, if the first weighting ratio is 0.4:0.6, then the second fault hanging wall data volume = 0.4 * first fault hanging wall data volume + 0.6 * well-side synthetic seismic trace, and the second fault footwall data volume = 0.4 * second fault footwall data volume + 0.6 * well-side synthetic seismic trace. Finally, the second fault hanging wall data volume and the second fault footwall data volume are fused together. The lower plate data volume is used as a well-side seismic trace for synthetic recording calibration, obtaining the corresponding upper and lower plate seismic wavelets. Finally, the upper and lower plate seismic wavelets are fused according to a set second weighting ratio to obtain a fused seismic wavelet. For example, if the second weighting ratio is 0.4:0.6, then the fused seismic wavelet = 0.4 * upper plate seismic wavelet + 0.6 * lower plate seismic wavelet. The fused seismic wavelet is then combined with well logging data to create a well-side synthetic seismic record. Comparison with the original seismic data shows a higher similarity, indicating that the fused seismic wavelet is less affected by fault zone development, which is beneficial for subsequent reservoir inversion. The seismic wavelet obtained in this invention, while eliminating the influence of fault zones, considers the stratigraphic characteristics of the upper and lower plate of the fault separately. The seismic wavelet has concentrated main lobe energy and stable phase, laying the foundation for subsequent pre-stack inversion and other reservoir prediction work, and is particularly suitable for areas with well-developed faults.

[0052] In one example, the formation of the hanging wall data volume and the footwall data volume of the first fault based on well-side seismic data specifically includes:

[0053] Structural interpretation was performed on the seismic data from the wellbore, distinguishing the hanging wall and footwall of the fault development zone and the fault itself. The data from the hanging wall and footwall were extracted separately to form the hanging wall data volume and the footwall data volume, respectively.

[0054] In one example, based on the well-side synthetic seismic trace, the data volume of the hanging wall of the first fault, and the data of the footwall of the first fault, the data volumes of the hanging wall of the second fault and the footwall of the second fault are fused together, specifically including:

[0055] The well-side synthetic seismic traces are fused with the data volumes of the first fault hanging wall and the first fault footwall according to a set first weighting ratio to obtain the data volumes of the second fault hanging wall and the second fault footwall.

[0056] In one example, obtaining the corresponding hanging wall seismic wavelet and footwall seismic wavelet based on the hanging wall data volume and the footwall data volume of the second fault specifically includes:

[0057] The data volumes of the hanging wall and the footwall of the second fault were used as well-side seismic traces for synthetic recording and calibration to obtain the corresponding hanging wall and footwall seismic wavelets.

[0058] In one example, based on the hanging wall seismic wavelet and the footwall seismic wavelet, the fused seismic wavelet specifically includes:

[0059] The upper plate seismic wavelet and the lower plate seismic wavelet are fused according to the set second weighting ratio to obtain the fused seismic wavelet.

[0060] In one example, the corresponding zero-phase wavelet is extracted from the entire target layer of the well-side seismic data, and the zero-phase wavelet is convolved with the well logging data to obtain the well-side synthetic seismic trace.

[0061] In one example, it also includes:

[0062] Based on the fusion of seismic wavelet and well logging data to form a well-side synthetic seismic record, the well-side synthetic seismic record is compared with the original seismic data to obtain the similarity between the well-side synthetic seismic record and the original seismic data.

[0063] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the invention. It should be noted that, unless otherwise specified, the embodiments and features described in the embodiments of the present invention can be combined with each other.

[0064] Example 1

[0065] This embodiment provides a method for seismic wavelet extraction in fault-complex zones, including:

[0066] Structural interpretation is performed on well-side seismic data to distinguish the hanging wall and footwall of fault development zones and faults. Data from the hanging wall and footwall are extracted separately to form fault hanging wall data volumes and fault footwall data volumes, respectively. Zero-phase wavelets are extracted from the entire target layer of the well-side seismic data. These zero-phase wavelets are convolved with well logging data to obtain well-side synthetic seismic traces. These traces are then fused with the first fault hanging wall data volume and the first fault footwall data volume according to a predefined first weighting ratio to obtain the second fault hanging wall data volume and the second fault footwall data volume. The second fault hanging wall data volume and the second fault footwall data volume are used as well-side seismic traces for synthetic record calibration to obtain the corresponding hanging wall seismic wavelets and footwall seismic wavelets. These wavelets are then fused according to a predefined second weighting ratio to obtain the fused seismic wavelet. Based on the fused seismic wavelet and well logging data, a well-side synthetic seismic record is formed. The well-side synthetic seismic record is compared with the original seismic data to obtain the similarity between the two.

[0067] Example 2

[0068] like Figure 2 As shown, this embodiment provides a method for seismic wavelet extraction in fault-complex areas, including:

[0069] After completing the post-stack synthetic record calibration, structural interpretation of the well-side seismic data was performed, such as... Figure 3 As shown, distinguish the hanging wall and footwall of the fault development zone (hanging wall time range 2-3s, footwall time range 3-4s), and... Figure 3 Seismic data representing the hanging wall and footwall of the fault are extracted and labeled as seis hanging wall and seis footwall, respectively. Synthetic record calibration is performed on the original seismic data. ① The entire target layer is selected to extract the corresponding zero-phase wavelet and the wavelet with phase matching to the seismic data. The wavelet with phase matching to the seismic data is wavelet_seis_phase (e.g., wavelet_seis_phase). Figure 4 (as shown) and the zero-phase wavelet_whole_0_phase (as shown) Figure 5 The significant morphological differences (as shown) indicate a substantial influence from fault zone development. Furthermore, the wavelet phase is unstable within the effective frequency band, and the lack of energy concentration in the main lobe will affect the accuracy of subsequent seismic inversion. ② Based on the fault time range of 3-4 seconds in the footwall, extract the zero-phase wavelet and the wavelet wavelet_seis_phase_footwall that matches the phase of the seismic data, such as... Figure 6 As shown, the two have significant morphological differences; ③ Similarly, based on the time range of the hanging wall and the footwall (2-3 seconds), the zero-phase wavelet and the wavelet wavelet_seis_phase_hanging wall that matches the phase of the seismic data are extracted, such as... Figure 7The search revealed significant differences in the morphology of the two data points, indicating that simply setting the time window is insufficient to eliminate the influence of the footwall on the upper plate wavelet extraction, thus failing to obtain a stable wavelet. This is because the simple time window setting is also affected by seismic data from the other side of the fault. By selecting the zero-phase wavelet_whole and convolving it with the well logging data to obtain the well-side synthetic seismic trace seis_whole, this trace was then fused with the upper and lower plate data volumes using weighted ratios. The new upper plate data volume seis_new_upper plate = 0.5*seis_upper plate + 0.5*seis_whole, and the new lower plate data volume... The data volume `seis_new_footwall` = 0.5 * `seis_footwall` + 0.5 * `seis_whole`; `seis_new_footwall` and `seis_new_footwall` are used as well-side seismic traces for synthetic recording calibration to obtain the corresponding seismic wavelets. These two wavelets are then weighted and fused to obtain the fused wavelet `wavelet_final`, which can characterize the fault's footwall and hanging wall information. `wavelet_final` is then superimposed with `wavelet_seis_phase`, `wavelet_seis_phase_footwall`, and `wavelet_seis_phase_footwall`, as shown below. Figure 8 As shown, the fused wavelet_final exhibits more concentrated main lobe energy and stable phase, making it a more ideal wavelet for seismic inversion. Using the fused wavelet and well logging data to create a well-side synthetic seismic record, the high similarity to the original seismic data indicates that the fused wavelet is less affected by fault zone development, which is beneficial for subsequent reservoir inversion and other related work.

[0070] Example 3

[0071] like Figure 9 As shown, this embodiment provides a seismic wavelet extraction device for complex fault zones, comprising:

[0072] A data generation module is used to generate the first fault hanging wall data volume and the first fault footwall data volume based on the well-side seismic data;

[0073] The first fusion module is used to fuse the second fault hanging wall data volume and the second fault footwall data volume based on the well-side synthetic seismic trace, the first fault hanging wall data volume and the first fault footwall data volume;

[0074] The acquisition module is used to acquire the corresponding hanging wall seismic wavelet and hanging wall seismic wavelet based on the hanging wall data volume and the hanging wall data volume of the second fault, respectively.

[0075] The second fusion module is used to fuse the upper plate seismic wavelet and the lower plate seismic wavelet to obtain a fused seismic wavelet.

[0076] Example 4

[0077] This disclosure also provides an electronic device, which includes:

[0078] At least one processor; and,

[0079] A memory communicatively connected to the at least one processor; wherein,

[0080] The memory stores instructions that can be executed by the at least one processor, which enables the at least one processor to perform the seismic wavelet extraction method for fracture complex areas in Embodiment 1.

[0081] An electronic device according to embodiments of the present disclosure includes a memory and a processor. The memory is used to store non-transitory computer-readable instructions. Specifically, the memory may include one or more computer program products, which may include various forms of computer-readable storage media, such as volatile memory and / or non-volatile memory. The volatile memory may, for example, include random access memory (RAM) and / or cache memory. The non-volatile memory may, for example, include read-only memory (ROM), hard disk, flash memory, etc.

[0082] The processor may be a central processing unit (CPU) or other form of processing unit with data processing capabilities and / or instruction execution capabilities, and may control other components in the electronic device to perform desired functions. In one embodiment of this disclosure, the processor is used to execute computer-readable instructions stored in the memory.

[0083] Those skilled in the art will understand that, in order to solve the technical problem of how to achieve a good user experience, this embodiment may also include well-known structures such as communication buses and interfaces, and these well-known structures should also be included within the protection scope of this disclosure.

[0084] For a detailed description of this embodiment, please refer to the corresponding descriptions in the foregoing embodiments, which will not be repeated here.

[0085] Example 5

[0086] This disclosure provides a non-transitory computer-readable storage medium storing computer instructions for causing a computer to execute the seismic wavelet extraction method for fractured complex zones in Embodiment 1.

[0087] A computer-readable storage medium according to embodiments of the present disclosure stores non-transitory computer-readable instructions. When these non-transitory computer-readable instructions are executed by a processor, all or part of the steps of the methods described in the foregoing embodiments of the present disclosure are performed.

[0088] The aforementioned computer-readable storage media include, but are not limited to: optical storage media (e.g., CD-ROM and DVD), magneto-optical storage media (e.g., MO), magnetic storage media (e.g., magnetic tape or portable hard drive), media with built-in rewritable non-volatile memory (e.g., memory card), and media with built-in ROM (e.g., ROM cartridge).

[0089] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A method for extracting a seismic wavelet in a faulted complex area, characterized in that, The method comprises the following steps: forming a first upper wall data volume and a first lower wall data volume based on well-side seismic data; fusing a second upper wall data volume and a second lower wall data volume based on well-side synthetic seismic traces, the first upper wall data volume and the first lower wall data volume; obtaining corresponding upper wall seismic wavelets and lower wall seismic wavelets based on the second upper wall data volume and the second lower wall data volume; fusing a fusion seismic wavelet based on the upper wall seismic wavelet and the lower wall seismic wavelet.

2. The method of claim 1, wherein, The step of forming a first upper wall data volume and a first lower wall data volume based on well-side seismic data specifically comprises the following steps: performing structural interpretation on the well-side seismic data to distinguish a faulted zone, an upper wall and a lower wall of a fault, and separately extracting data of the upper wall and the lower wall to form the upper wall data volume and the lower wall data volume of the fault.

3. The method of claim 1, wherein, The step of fusing a second upper wall data volume and a second lower wall data volume based on well-side synthetic seismic traces, the first upper wall data volume and the first lower wall data volume specifically comprises the following steps: fusing the well-side synthetic seismic traces with the first upper wall data volume and the first lower wall data volume respectively according to a first weighting ratio to obtain the second upper wall data volume and the second lower wall data volume.

4. The method of claim 1, wherein, The step of obtaining corresponding upper wall seismic wavelets and lower wall seismic wavelets based on the second upper wall data volume and the second lower wall data volume specifically comprises the following steps: performing synthetic record calibration on the second upper wall data volume and the second lower wall data volume respectively to obtain the upper wall seismic wavelets and the lower wall seismic wavelets.

5. The method of claim 1, wherein, The step of fusing a fusion seismic wavelet based on the upper wall seismic wavelet and the lower wall seismic wavelet specifically comprises the following steps: fusing the upper wall seismic wavelet and the lower wall seismic wavelet according to a second weighting ratio to obtain the fusion seismic wavelet.

6. The method of claim 1, wherein, The zero-phase wavelet corresponding to the entire target layer of the well-side seismic data is extracted, and the zero-phase wavelet is convolved with the logging data to obtain the well-side synthetic seismic trace.

7. The method of claim 1, wherein, The method further comprises the following steps: forming a well-side synthetic seismic record based on the fusion seismic wavelet and the logging data, and comparing the well-side synthetic seismic record with original seismic data to obtain a similarity between the well-side synthetic seismic record and the original seismic data.

8. An electronic device, comprising: The electronic device comprises: at least one processor; and a memory connected with the at least one processor in communication; wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to perform the faulted complex area seismic wavelet extraction method according to any one of claims 1-7.

9. A non-transitory computer-readable storage medium, comprising: The non-transitory computer readable storage medium stores computer instructions for causing a computer to perform the faulted complex area seismic wavelet extraction method according to any one of claims 1-7.

10. A device for extracting a seismic wavelet in a complex zone, characterized by, The method comprises the following steps: forming a first upper wall data volume and a first lower wall data volume based on well-side seismic data; The first fusion module is configured to fuse a second hanging wall data volume and a second foot wall data volume based on the well-side synthetic seismic trace, the first hanging wall data volume and the first foot wall data volume; The acquisition module is configured to acquire a corresponding hanging wall seismic wavelet and a foot wall seismic wavelet based on the second hanging wall data volume and the second foot wall data volume respectively; The second fusion module is configured to fuse a fused seismic wavelet based on the hanging wall seismic wavelet and the foot wall seismic wavelet.

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