Seismic data format conversion method and device

Abstract

The invention provides a seismic data format conversion method and device, and the method comprises the steps of generating a seismic data format template according to the features of seismic data, and enabling the seismic data format template to comprise a coiling head, a channel head and a data sampling point value; analyzing the seismic data by using the seismic data format template to obtain aseismic data volume head structure body and a seismic trace structure body array; correcting the seismic data format template according to the seismic data volume head structure body and the seismictrace structure body array; and performing format conversion on the seismic data according to the corrected seismic data format template. According to the invention, the seismic data format template can be used for analyzing the seismic data and carrying out format conversion on the seismic data.

Description

technical field [0001] This application relates to the field of petroleum geophysical exploration, in particular to a seismic data format conversion method and device. Background technique [0002] In the 1960s, digital tape recording seismographs manufactured with integrated circuits gradually replaced analog tape recording seismographs manufactured with transistors. In order to meet the demand for digital tape recording seismic data, the Society of Exploration Geophysicists (SEG) successively released the SEG-A digital tape recording data format and the SEG-B digital tape recording data format in 1967, and launched the SEG-B digital tape recording data format in 1972. C digital tape recording data format. Among them, the SEG-C digital tape recording data format records data sample point values ​​in 32-bit IBM floating-point format, which improves the accuracy of seismic data recording. In 1975, the Association of Exploration Geophysicists successively launched the SEG-D ...

AI Technical Summary

Problems solved by technology

In addition, seismic data may come from different operators, service providers, and software platforms, etc. Some seismic data have been transcribed and copied many times, and the data header and basic information are seriously missing. The editing module can only realize simple mapping of trace head relationship, that is, to present the storage location of trace head in standard data format, but cannot solve the problem of decompilation of seismic data in the case of wrong data format or recording in non-standard data format

In addition, when dealing with complex raw seismic data decompilation problems, the decompilation module of the existing software platform does not have the problem data analysis function, nor can it track the data reading process in real time and find problems in the data format in time

Based on the above reasons, a lot of seismic data cannot be decompiled correctly, which makes a lot of manpower and material resources wasted and inefficient in the process of finding data decompilation errors and carrying out data analysis in the later stage.

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