Converted wave imaging trace gather selection and arrangement method and device, electronic equipment and storage medium
By setting the imaging survey line and point information in the trace header during the processing of converted shear wave seismic data, grouping them and selecting them by survey line number, the problem of low efficiency in big data processing is solved, and efficient converted shear wave imaging trace collection selection is achieved.
Patent Information
- Application Number
- CN202410346878.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-26
- Publication Date
- 2025-09-26
AI Technical Summary
In the existing converted shear wave seismic data processing, the imaging gather selection method is inefficient when processing big data, has high hardware requirements, and is prone to data loss, which cannot meet the needs of efficient processing.
The final converted shear wave imaging gathers are generated by setting the imaging line number, imaging point number, and the distance between the excitation point and the receiving point in the seismic trace header according to the observation system definition, grouping and numbering them, dividing the single-shot data groups according to the preset fixed intervals, and selecting them according to the imaging line number.
It significantly improves the efficiency and effectiveness of converted shear wave data processing, reduces hardware resource requirements, avoids processing interruptions and duplication of work, and meets actual production needs.
Smart Images
Figure CN120703827A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of converted shear wave seismic data processing, and in particular to a converted wave imaging gather selection method, device, electronic equipment and storage medium. Background Art
[0002] The most time-consuming step in processing converted S-wave seismic data is the selection and sorting of converted S-wave imaging gathers. With the development of 3D seismic data toward higher density, higher coverage, wider azimuth, and larger coverage areas, the volume of seismic data has increased exponentially, reaching tens or even hundreds of terabytes of storage. This poses greater challenges to data processing hardware requirements and technical process strategies. While traditional imaging gather selection methods can achieve the ultimate goal, they are no longer sufficient for efficient processing. Therefore, it is necessary to optimize the selection and sorting strategies for converted S-wave imaging gathers and effectively improve their efficiency.
[0003] The current mainstream processing technology primarily involves selecting and sorting 3D data at once, then employing node-parallel algorithms within the available software. If parallel algorithms are not available within the software, single-node processing is the only option. However, this approach presupposes a relatively small storage capacity for 3D seismic data, typically less than 1TB. For data in a work area exceeding 1TB or even 10TB, while current algorithms enable node-parallel processing (the more parallel nodes selected, the greater the efficiency), the data selection and sorting process faces significant hardware requirements, including the need for a large cache memory and long processing times. Furthermore, using node-parallel processing, if a small number of nodes is selected, efficiency gains are unattainable. However, if a large number of nodes is selected, data loss due to node communication issues may occur, leading to a failure to meet the timeliness requirements of data processing. Therefore, existing technical approaches have significant limitations and are less practical. Summary of the Invention
[0004] The purpose of the present invention is to overcome the above-mentioned technical problems existing in the prior art, and to provide a method, device, electronic equipment and storage medium for selecting converted wave imaging trace sets. The present invention can effectively meet the needs of big data processing, significantly improve the efficiency and effectiveness of converted shear wave data processing, and solve the technical problem of low timeliness of current converted shear wave seismic data processing technology.
[0005] To achieve the above object, the technical solution adopted by the present invention is as follows: In a first aspect, the present invention provides a method for selecting converted wave imaging gathers, comprising the following steps: Step S1, in the order of the single shot records during the original seismic data acquisition, the imaging line number, the imaging point number, and the distance between the excitation point and the receiving point are set in the trace header of each seismic trace according to the definition of the observation system; Step S2, grouping and numbering all collected single shot records to obtain multiple numbered single shot data groups; Step S3: Based on the imaging range and the imaging survey line in each seismic trace header as a selection parameter, each single shot data group is divided into multiple separate data volumes at preset fixed intervals, and the imaging survey line number is marked on the separate data volumes; Step S4, selecting and sorting the individual data volumes with the same imaging line number in all the single shot data groups in order; Step S5: output the selected data to obtain the final converted shear wave imaging gather.
[0006] In step S1, before the imaging line number, the imaging point number and the distance between the excitation point and the receiving point are set in the trace header of each seismic trace according to the definition of the observation system: it also includes setting the observation system according to the definition data when the seismic data acquisition is designed.
[0007] In step S2, all the collected single shot records are sequentially numbered in the order in which they were collected in the field; In step S2, all collected single shot records are grouped by size.
[0008] In step S2, the data of each single shot data group is stored within 50 GB after grouping.
[0009] In step S3, the imaging range includes the imaging survey line number range and the imaging point range.
[0010] In step S5, the individual data volumes with the same imaging line number are sequentially selected based on the number of the imaging line, the number of the imaging point, and the distance between the excitation point and the receiving point.
[0011] In a second aspect, the present invention provides a converted wave imaging gather selection device, comprising: Observation system definition assignment module: used to assign observation system information to the header of each seismic trace; Single-shot group input module, used for inputting and grouping single-shot data, and numbering and naming the grouped single-shot data groups; The imaging line grouping input module is used to divide each single shot data group into multiple separate data volumes according to the imaging range and the imaging line in each seismic trace header as the selection parameter at a preset fixed interval, and mark the imaging line number; The imaging gather selection and sorting processing module is used to perform gather selection and sorting processing on the individual data volume marked with the imaging survey line number; The imaging gather output processing module is used to output and store the converted shear wave imaging gathers obtained after the gather selection and sorting processing.
[0012] In a third aspect, the present invention provides an electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the following steps are performed: In the order of single shot records during original seismic data acquisition, the imaging line number, imaging point number, and the distance between the excitation point and the receiving point are set in the trace header of each seismic trace according to the definition of the observation system. Grouping and numbering all collected single-shot records to obtain multiple numbered single-shot data groups; Based on the imaging range, the imaging survey line in each seismic trace header is used as the selection parameter. Each single shot data group is divided into multiple separate data volumes at preset fixed intervals, and the separate data volumes in each single shot data group are marked with the imaging survey line number. Sequentially select and sort the individual data volumes with the same imaging line number in all single-shot data groups; The selected data are output to obtain the final converted shear wave imaging gather.
[0013] In a fourth aspect, the present invention provides a storage medium storing a computer program, wherein when the computer program is executed by a processor, the following steps are implemented: In the order of single shot records during original seismic data acquisition, the imaging line number, imaging point number, and the distance between the excitation point and the receiving point are set in the trace header of each seismic trace according to the definition of the observation system. Grouping and numbering all collected single-shot records to obtain multiple numbered single-shot data groups; Based on the imaging range, the imaging survey line in each seismic trace header is used as the selection parameter. Each single shot data group is divided into multiple separate data volumes at preset fixed intervals, and the separate data volumes in each single shot data group are marked with the imaging survey line number. Sequentially select and sort the individual data volumes with the same imaging line number in all single-shot data groups; The selected data are output to obtain the final converted shear wave imaging gather.
[0014] The advantages of adopting the present invention are: The method of the present invention mainly includes 5 steps, and the advantages of each step are as follows: The advantage of step S1 is that it can make each seismic trace correspond to the observation system and form a corresponding spatial position mark, providing effective parameters for the selection in step S4.
[0015] The advantage of step S2 is that it helps reduce the scale of collected single shots, facilitating efficient processing in the later stage.
[0016] The advantage of step S3 is that it can further reduce the scale of the single shot collected, improve the processing efficiency, and store the data in the order of the spatial position of the imaging, which is more in line with the final imaging requirements.
[0017] The advantage of step S4 is that it can satisfy the correspondence of the observation system and quickly obtain imaging gather data.
[0018] The advantage of step S5 is that the generated converted shear wave imaging gathers meet the requirements for gather selection in the imaging processing standard and can be directly used for imaging processing; on the other hand, since the data is divided twice, it provides data for improving the timeliness of subsequent imaging processing.
[0019] In summary, the present invention effectively improves the processing efficiency of converted shear-wave imaging gather selection, avoiding problems such as low data processing efficiency due to large data volumes, which cannot meet actual production needs, and even duplication of work caused by processing interruptions caused by the hardware environment during the processing process. This achieves excellent results, better addressing the timeliness and effectiveness of converted shear-wave imaging gather selection, and meeting actual production requirements. Furthermore, the device, electronic device, and storage medium all have the same technical effects as the method and are not further described. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a flowchart of the present invention; Figure 2 A flowchart of a specific embodiment of the present invention; Figure 3 It is a structural block diagram of the device of the present invention.
[0021] The following are marked in the figure: 10, observation system definition assignment module, 20, single shot grouping input module, 30, imaging line grouping input module, 40, imaging gather selection and processing module, 50, imaging gather output processing module. DETAILED DESCRIPTION
[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.
[0023] Example 1 Figure 1 A method for selecting converted wave imaging gathers provided by the present invention is shown, which includes the following steps: Step S1, in the order of single shot records during original seismic data acquisition, the imaging line number, imaging point number and the distance between the excitation point and the receiving point are set in the trace header of each seismic trace according to the definition of the observation system.
[0024] Step S2: For all the collected single shot records, sequentially number each single shot record according to the order of field collection, and then group and number all the collected single shot records to obtain multiple numbered single shot data groups.
[0025] Step S3: Set the imaging range during seismic data processing. The imaging range includes the imaging line number range and the imaging point range. Then, using the imaging line in each seismic trace header as a selection parameter, divide each single-shot data group into multiple separate data volumes at preset fixed intervals, and mark the separate data volumes in each single-shot data group with the imaging line number.
[0026] Step S4 , according to the number of the imaging survey line, the number of the imaging point and the distance between the excitation point and the receiving point, the individual data volumes with the same imaging survey line number in all the single shot data groups are selected in order.
[0027] Step S5: output the selected data to obtain the final converted shear wave imaging gather.
[0028] According to a preferred implementation of this embodiment, before setting the number of the imaging survey line, the number of the imaging point and the distance between the excitation point and the receiving point in the header of each seismic trace according to the definition of the observation system: this step also includes setting the observation system according to the definition data during the seismic data acquisition design.
[0029] According to a preferred implementation of this embodiment, all collected single-shot records are grouped by size, and after grouping, the data of each single-shot data group is stored within 50 GB.
[0030] Furthermore, the specific embodiment of the present invention includes the following steps: Step 1: Set the observation system and related parameters based on the actual design workload and design parameters for collecting seismic data in the work area.
[0031] Step 2: Set the imaging line number, imaging point number, and distance between the excitation point and the receiving point in the trace header of each seismic trace according to the definition of the observation system.
[0032] Step 3: Count the number of single shots N collected for seismic data in the work area and the storage space size M of each single shot.
[0033] Step 4: Group the seismic data of the work area into single shots according to the requirements, name each group of data, and use array numbering in the file name.
[0034] Step 5: For each grouped single-shot data set, divide it again at fixed intervals according to the imaging range and the imaging survey line in each seismic trace header as the selection parameter to form a separate data volume. Name the separate data volume in each single-shot data set, and the file name can be numbered with the imaging survey line number. Step 6: All the individual data volumes with the same imaging line number in the single shot data group are sorted in the order of the three key parameters: the number of the imaging line, the number of the imaging point, and the distance between the excitation point and the receiving point.
[0035] Step 7: Output the selected data to obtain the final converted shear wave imaging gather, which can be directly used for imaging processing.
[0036] Figure 2 A flow chart of an exemplary embodiment of the present invention is specifically shown as follows: Figure 2 As shown, during the seismic data acquisition process, each single shot record has a file number, which is generally related to the acquisition order, starting from 1 and increasing in sequence. In the general multi-component seismic data processing process, the first task to be completed is the definition of the seismic data processing observation system. The definition of the observation system can accurately characterize the relationship between the excitation point and the receiving point during the seismic data acquisition process. According to the method of the present invention, the necessary parameters in the observation system are first assigned to the header storage bytes of each seismic record, especially the three parameters required in the present invention: the number of imaging lines, the number of imaging points, and the distance between the excitation point and the receiving point. Through the definition of the observation system and the completion of the acquisition workload of the work area, the number N of seismic single shot data in the work area and the storage size M GB of each single shot can be obtained. Then the total storage size of the seismic single shot data in the work area is N*M. According to the method of the present invention, the entire data needs to be divided into X, that is, each X single shot data is a group, as follows: X=int((N*M) / T) Among them, int means rounding.
[0037] For example, if a work area collected 10,000 single-shot records, each 0.3 GB in size, the total storage size for the seismic data in this area is 3,000 GB. Using the method described in this invention, assuming each 50 GB is a group, the single-shot data from this work area can be divided into 60 groups, with approximately every 166 single-shot data points being a group. That is, files 1-166 are group 1, numbered group 1. Files 167-332 are group 2, numbered group 2. And so on, with the last group being group 60.
[0038] After completing the grouping process for the single-shot data, the imaging range for the seismic data in the work area needs to be set. This imaging range mainly has two parameters to determine: the imaging line number and the imaging point number. After completing the imaging range setting, each grouped single-shot data group is further divided according to the imaging range L, using the imaging line as the selection parameter, and at a fixed interval ΔL. This allows each single-shot data group to form a separate data volume Y. Each grouped data is named, and the file name is numbered using the imaging line number, as follows: Y=int((L / ΔL)) Among them, int means rounding.
[0039] For example, if the imaging range parameters for the work area have an imaging line number range of 1-1000 and an imaging point number range of 1-1000, and a fixed interval ΔL of 50 is set, the imaging lines are divided into 20 groups: imaging lines 1-20 are grouped as line1, imaging lines 21-40 are grouped as line2, and so on. Then, group1 is further divided into group1_line1, group1_line2, group1_line3, ...group1_line20. Similarly, group2 is further divided into group2_line1, group2_line2, group2_line3, ...group2_line20. And so on, up to group60_line1, group60_line2, group60_line3, ...group60_line20.
[0040] After completing the imaging line number grouping, the individual data volumes with the same imaging line number in all single-shot data groups are sorted in the order of three key parameters: imaging line number, imaging point number, and distance between the excitation point and the receiving point.
[0041] For example, this work area takes group1_line1, group2_line1, group3_line1, ...group60_line1 as input data for selection and sorting processing to obtain line1_sort data, which is the imaging track gather of the entire work area within the range of line1; similarly, this work area takes group1_line20, group2_line20, group3_line20, ...group60_line20 as input data for selection and sorting processing to obtain line20_sort data, which is the imaging track gather of the entire work area within the range of line20.
[0042] Finally, the selected data is output to obtain the final converted shear wave imaging gather for the entire work area. This gather data can be directly used for imaging processing within the imaging range covered by the selected gather and obtain the corresponding imaging data. Finally, the imaging data processed from different ranges are merged to obtain the imaging data for the entire work area.
[0043] For example, if the line1_sort data represents imaging lines 1-20, then the image data obtained from the imaging processing, line1_stack, will be within the imaging lines 1-20. If the line20_sort data represents imaging lines 1-20, then the image data obtained from the imaging processing, line20_stack, will be within the imaging lines 951-1000. Line1_stack, line2_stack, ..., line20_stack are combined to obtain the imaging data volume line_all_stack for the entire work area.
[0044] In summary, this method effectively utilizes the advantage that small data processing time is faster than large data processing time, and can reduce the requirements for hardware resources. Processing is performed according to the selection and arrangement requirements of imaging gathers, which not only improves the efficiency of data selection and arrangement processing, but also improves the efficiency of imaging processing.
[0045] Furthermore, this method effectively improves the processing efficiency of converted shear-wave imaging gather selection, avoiding issues such as low data processing efficiency due to large data volumes, which can fail to meet actual production needs, and even duplication of work caused by interruptions during processing due to hardware issues. This has achieved excellent results, better addressing the timeliness and effectiveness of converted shear-wave imaging gather selection, and meeting actual production requirements.
[0046] Example 2 Figure 3 The present invention provides a converted wave imaging gather selection and sorting device, which includes: Observation system definition assignment module 10: used to assign observation system information to the header of each seismic trace.
[0047] The single shot grouping input module 20 is used for inputting and grouping single shot data, and numbering and naming the grouped single shot data groups.
[0048] The imaging line grouping input module 30 is used to divide each single shot data group into multiple separate data volumes according to the imaging range and the imaging lines in each seismic trace header as selection parameters at preset fixed intervals, and mark the imaging line numbers.
[0049] The imaging gather selection and sorting processing module 40 is used to perform gather selection and sorting processing on the individual data volume marked with the imaging survey line number.
[0050] The imaging gather output processing module 50 is used to output and store the converted shear wave imaging gathers obtained after the gather selection and sorting processing.
[0051] It should be noted that, based on the same application concept as the method described in Example 1, the principle of the technical problem to be solved by the rapid selection device for converted wave imaging gathers provided in this embodiment is similar to that of Example 1. Therefore, the specific implementation of this embodiment can refer to Example 1, and the repeated parts will not be repeated.
[0052] Example 3 The present invention further provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the method for selecting and sorting converted wave imaging gathers described in Example 1 is executed, specifically implementing the following steps: In the order of single shot records during original seismic data acquisition, the imaging line number, imaging point number, and the distance between the excitation point and the receiving point are set in the trace header of each seismic trace according to the definition of the observation system. Grouping and numbering all collected single-shot records to obtain multiple numbered single-shot data groups; Based on the imaging range, the imaging survey line in each seismic trace header is used as the selection parameter. Each single shot data group is divided into multiple separate data volumes at preset fixed intervals, and the separate data volumes in each single shot data group are marked with the imaging survey line number. Sequentially select and sort the individual data volumes with the same imaging line number in all single-shot data groups; The selected data are output to obtain the final converted shear wave imaging gather.
[0053] It should be noted that, based on the same application concept as the method described in Example 1, the principle of the technical problem to be solved by an electronic device provided in this embodiment is similar to that of Example 1. Therefore, the specific implementation of this embodiment can refer to Example 1, and the repeated parts will not be repeated.
[0054] Example 4 The present invention further provides a storage medium storing a computer program. When the computer program is executed by a processor, the method for selecting and sorting converted wave imaging gathers described in Example 1 is executed, which specifically implements the following steps: In the order of single shot records during original seismic data acquisition, the imaging line number, imaging point number, and the distance between the excitation point and the receiving point are set in the trace header of each seismic trace according to the definition of the observation system. Grouping and numbering all collected single-shot records to obtain multiple numbered single-shot data groups; Based on the imaging range, the imaging survey line in each seismic trace header is used as the selection parameter. Each single shot data group is divided into multiple separate data volumes at preset fixed intervals, and the separate data volumes in each single shot data group are marked with the imaging survey line number. Sequentially select and sort the individual data volumes with the same imaging line number in all single-shot data groups; The selected data are output to obtain the final converted shear wave imaging gather.
[0055] Those skilled in the art will understand that all or part of the steps in the above-mentioned embodiment method can be completed by instructing the relevant hardware through a program, and the program can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc.
[0056] It should be noted that, based on the same application concept as the method described in Example 1, the principle of the technical problem to be solved by an electronic device provided in this embodiment is similar to that of Example 1. Therefore, the specific implementation of this embodiment can refer to Example 1, and the repeated parts will not be repeated.
[0057] The above description is only a specific embodiment of the present invention. Any feature disclosed in this specification, unless otherwise stated, can be replaced by other equivalent or alternative features with similar purposes; all disclosed features, or all steps in the methods or processes, except for mutually exclusive features and / or steps, can be combined in any way.
Claims
1. A method for selecting converted wave imaging gathers, characterized by: The following steps are involved: Step S1, in the order of the single shot records during the original seismic data acquisition, the imaging line number, the imaging point number, and the distance between the excitation point and the receiving point are set in the trace header of each seismic trace according to the definition of the observation system; Step S2, grouping and numbering all collected single shot records to obtain multiple numbered single shot data groups; Step S3: Based on the imaging range and the imaging survey line in each seismic trace header as a selection parameter, each single shot data group is divided into multiple separate data volumes at preset fixed intervals, and the imaging survey line number is marked on the separate data volumes; Step S4, selecting and sorting the individual data volumes with the same imaging line number in all the single shot data groups in order; Step S5: output the selected data to obtain the final converted shear wave imaging gather.
2. The converted wave imaging gather selection method according to claim 1, characterized in that: In step S1, before the imaging line number, the imaging point number and the distance between the excitation point and the receiving point are set in the trace header of each seismic trace according to the definition of the observation system: it also includes setting the observation system according to the definition data when the seismic data acquisition is designed.
3. The method for selecting converted wave imaging gathers according to claim 1, wherein: In step S2, all the collected single shot records are sequentially numbered in the order in which they were collected in the field.
4. The method for selecting converted wave imaging gathers according to claim 1, wherein: In step S2, all collected single shot records are grouped by size.
5. The method for selecting converted wave imaging gathers according to claim 1, characterized in that: In step S2, the data of each single shot data group is stored within 50 GB after grouping.
6. The method for selecting converted wave imaging gathers according to claim 1, characterized in that: In step S3, the imaging range includes the imaging survey line number range and the imaging point range.
7. The method for selecting converted wave imaging gathers according to claim 1, characterized in that: In step S5, the individual data volumes with the same imaging line number are sequentially selected based on the number of the imaging line, the number of the imaging point, and the distance between the excitation point and the receiving point.
8. A converted wave imaging gather selection device, characterized by: include: Observation system definition assignment module (10): used to assign observation system information to the header of each seismic trace; The single shot grouping input module (20) is used for inputting and grouping single shot data, and numbering and naming the grouped single shot data groups; An imaging line grouping input module (30) is used to divide each single shot data group into a plurality of separate data volumes according to a preset fixed interval based on the imaging range and the imaging line in each seismic trace header as a selection parameter, and mark the imaging line number; An imaging gather selection and sorting processing module (40) is used to perform gather selection and sorting processing on a separate data body marked with an imaging survey line number; The imaging gather output processing module (50) is used to output and store the converted shear wave imaging gathers obtained after the gather selection and sorting processing.
9. An electronic device, characterized in that: The invention comprises a memory, a processor and a computer program stored in the memory and capable of running on the processor, wherein when the processor executes the computer program, the converted wave imaging gather selection method according to any one of claims 1 to 7 is implemented.
10. A storage medium, characterized in that: The storage medium stores a computer program, and when the computer program is executed by a processor, the converted wave imaging gather selection method according to any one of claims 1 to 7 is implemented.