Residual static correction method and device

A technology of static correction and static correction, which is applied in the field of geophysical exploration, can solve the problems of large amount of data processing, affecting calculation efficiency and production efficiency, and achieve the effects of accurate calculation results, shortened running time, and improved application range

Active Publication Date: 2019-03-15
BC P INC CHINA NAT PETROLEUM CORP +1
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Problems solved by technology

[0003] The amount of data processing for residual static correction is usually relatively large. The calculation of residual static correction in the prior art, when faced with massive production data, for example: when the calculation data reaches T level, the running time often takes hundreds of hours. Such program efficiency Greatly affects computing efficiency and production efficiency

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Embodiment Construction

[0043] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described The embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0044] In the process of seismic exploration and production, seismic data can be collected by artificially simulating seismic waves. According to the collected seismic data, stratigraphic interpretation and determination of oil and gas reservoirs can be realized, providing a theoretical basis for subsequent oil and gas exploitation. Due ...

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Abstract

The invention provides a residual static correction method and device. The method includes the steps that according to obtained super-channel data, shot point list data and demodulator probe list dataare generated, wherein the super-channel data includes seismic channel data of a combination of seismic waveforms within the same time window; shot point super-channel data in the shot point list data is distributed into one or more first task processing threads respectively, and the first task processing threads are used for working out a residual static correction value corresponding to a shotpoint according to the distributed shot point super-channel data; demodulator probe super-channel data in the demodulator probe list data is distributed into one or more second task processing threadsrespectively, and the second task processing threads are used for working out a residual static correction value corresponding to a demodulator probe according to the distributed demodulator probe super-channel data. According to all embodiments of the residual static correction method and device, resources of a large-scale computer cluster are fully utilized, the run time for super-channel disintegration operation on mass data is shortened substantially, and the calculating efficiency of the residual static correction value is improved.

Description

technical field [0001] The embodiments of this specification belong to the technical field of geophysical exploration, and in particular relate to a residual static correction method and device. Background technique [0002] Residual static correction is a correction made to seismic data, which is used to compensate for the effects of elevation, weathered layer thickness, and weathered layer velocity. Correcting the data to a specified datum is a method of eliminating near-surface effects in seismic exploration. The main data processing method to improve the quality of seismic reflection wave imaging. Residual static correction is a necessary process in the process of seismic data processing, and it is usually carried out multiple iterations with velocity analysis. Therefore, whether the calculation of residual static correction is efficient and convenient is an urgent problem to be solved in conventional processing. [0003] The amount of data processing for residual stati...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V1/36
CPCG01V1/36
Inventor 任晓乔杨志昱钱忠平张旭东马光凯倪凤田
Owner BC P INC CHINA NAT PETROLEUM CORP
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