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Seismic data processing method and device

A technology of seismic data and processing methods, applied in seismic signal processing, seismology, measuring devices, etc., can solve problems such as inaccurate adjustment, failure to adjust amplitude levels, etc., and achieve the effect of solving inaccurate adjustment

Active Publication Date: 2018-11-16
BC P INC CHINA NAT PETROLEUM CORP +1
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Problems solved by technology

[0005] The embodiment of the present application provides a seismic data processing method and device to solve the technical problems of inaccurate adjustment and even failure to adjust the amplitude level existing in the existing surface consistency amplitude compensation method

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  • Seismic data processing method and device

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Embodiment Construction

[0053] In order to enable those skilled in the art to better understand the technical solutions in this application, the following will clearly and completely describe the technical solutions in the embodiments of this application with reference to the drawings in the embodiments of this application. Obviously, the described The embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work should fall within the protection scope of this application.

[0054] Taking into account the existing surface consistency amplitude compensation method, because the difference between the seismic data to be processed is not fully analyzed in advance, a unified compensation adjustment is directly performed on all seismic data. Since the difference between the seismic data of each channel may be large, the dynamic r...

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Abstract

The embodiment of the invention provides a seismic data processing method and device. The method comprises a step of selecting seismic data with a preset length from first seismic data as second seismic data, a step of setting a threshold value according to the second seismic data, a step of dividing the first seismic data into a first data block and a second data block according to the threshold value, and determining a processing parameter, a step of processing the seismic data in the second data block according to the processing parameter, a step of carrying out migration imaging according to the seismic data in the first data block and the processed second data block. Since the difference between seismic data is considered is considered in the scheme, the seismic data is divided into blocks, the corresponding processing is carried out for the seismic data of different data blocks respectively, thus technical problems of inaccurate adjustment and even an adjustment amplitude level failure in an existing earth surface consistence amplitude compensation method are solved, and a technical effect of adjusting an energy level difference in the seismic data to be consistent is achieved.

Description

Technical field [0001] This application relates to the field of seismic exploration technology, and in particular to a seismic data processing method and device. Background technique [0002] In the process of seismic exploration, it is often necessary to process the acquired seismic data first, and then perform subsequent specific applications based on the processed seismic data. For example, perform migration imaging based on processed seismic data. However, for some seismic data, the amplitude and energy level of each seismic data in the seismic data may vary greatly due to various reasons. In the specific processing process, the energy difference will affect the subsequent migration imaging, causing the seismic data to migrate and arc, and then affect the imaging quality. [0003] At present, in order to deal with this kind of situation, the surface consistency amplitude compensation method is usually used to process seismic data. In specific implementation, this method does...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01V1/28
CPCG01V1/28G01V2210/74
Inventor 贺照权曾友爱张保庆赵贻水
Owner BC P INC CHINA NAT PETROLEUM CORP
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