Method for directly reconstructing SEGY data coordinates based on navigation file
A technology of data and files, applied in the field of direct reconstruction of SEGY data coordinates based on navigation files, can solve the problems of inaccurate coordinates or coordinates, low efficiency of SEGY data coordinate processing, etc., to reduce material and labor costs, high practical application value, Simple operation effect
Pending Publication Date: 2020-04-28
BINZHOU UNIV
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[0005] Aiming at the defects in the prior art that SEGY data processed by seismic data do not have coordinates or are inaccurate, and the processing efficiency of traditional SEGY data coordinates is low, the present invention proposes a method for directly reconstructing SEGY data coordinates based on navigation files, using the original Collect coordinates and process seismic data to construct a coordinate system for project requirements, which can greatly improve the efficiency of data processing
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[0050] In order to be able to understand the above-mentioned objectives and advantages of the invention more clearly, the specific implementation of the invention will be described in detail below in conjunction with the accompanying drawings:
[0051] The present invention proposes a method for directly reconstructing SEGY data coordinates based on navigation files, such as Picture 9 As shown, it specifically includes the following steps:
[0052] Step 1. Perform data sorting on SEGY data, navigation files and class report files after seismic data processing to obtain corresponding data parameters;
[0053] For navigation files, the data parameters include survey line name, navigation file name, starting shot number and ending shot number;
[0054] For SEGY data, the data parameters include data name, starting shot number and ending shot number;
[0055] For the class report file, the data parameters include survey line direction, offset, shot spacing, track spacing and track number....
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The invention discloses a method for directly reconstructing SEGY data coordinates based on a navigation file, and the method comprises: carrying out the arrangement of SEGY data, the navigation fileand a class report file, and obtaining corresponding data parameters; controlling and checking the quality of the SEGY data file; and directly constructing SEGY data coordinates by utilizing the extracted navigation file shot point coordinates, and obtaining real coordinates based on interpolation and coordinate reduction. The scheme is superior to a traditional method in efficiency, and the obtained coordinate precision meets the requirement of interpretation work; and under the condition that only SEGY data exist, projection parameters are not clear, or projection parameters are known, but projection adopted by a project is different, coordinate reconstruction can be rapidly achieved through the method, operation is easy, efficiency is high, material resources and labor cost can be effectively reduced, and high practical application value is achieved.
Description
Technical field [0001] The invention relates to the field of marine seismic exploration, in particular to a method for directly reconstructing SEGY data coordinates based on navigation files. Background technique [0002] When performing seismic interpretation, it is necessary to load the processed seismic data. However, the loading of seismic data has always been a problem, and sometimes it even takes several weeks to complete the seismic data loading work. Therefore, how to load the seismic data efficiently and correctly is a difficult problem. . [0003] As the amount of data becomes larger and larger, data sources are also diverse. For seismic interpretation, coordinate systems are also various. When interpretation is made, it is necessary to unify all seismic data in the work area into the same coordinate system. However, the coordinates of SEGY data after seismic data processing mainly have the following possibilities: 1) Since the collected data is relatively old, there is ...
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IPC IPC(8): G06F16/901
CPCG06F16/901Y02P90/30
Inventor 刘菲菲
Owner BINZHOU UNIV