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A seismic data processing method and device

A technology of seismic data and processing methods, applied in the field of geophysical exploration data processing, can solve problems such as unfavorable seismic data interpretation, difficulty in high-precision processing of seismic data, and fine characterization of reservoirs

Active Publication Date: 2019-06-11
BC P INC CHINA NAT PETROLEUM CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For low-resolution pre-stack seismic gathers, after stacking processing, it is often difficult to meet the requirements of high-precision processing of seismic data and fine description of reservoirs, and it is also not conducive for interpreters to perform more detailed analysis of seismic data of the target horizon. explain

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  • A seismic data processing method and device
  • A seismic data processing method and device
  • A seismic data processing method and device

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Embodiment Construction

[0047] Embodiments of the present application provide a seismic data processing method and device.

[0048] 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.

[0049] An embodiment of the present application provides a seismic data processing method. The seismic data processing method provides the original pre-stack seismic trace data of the target horizon.

[0050] In this embodiment, the targ...

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Abstract

The embodiments of the application disclose a seismic data processing method and device. The method comprises the steps of carrying out the Hilbert transform on the original prestack seismic channel data to obtain the Hilbert data; determining a target wavelet corresponding to the original prestack seismic channel data; subtracting the target wavelet from the original prestack seismic channel datato obtain the residual seismic channel data; when the maximum value of the absolute value of the amplitude in the residual seismic channel data is greater than or equal to a preset amplitude threshold value, taking the residual seismic channel data as the new original prestack seismic channel data, and generating a new target wavelet corresponding to the new original prestack seismic channel dataand the new residual seismic channel data until the maximum value of the absolute value of the amplitude in the new residual seismic channel data is less than the preset amplitude threshold value, superposing the new target wavelet and the target wavelet generated before the new target wavelet, and taking a superposition result as the target prestack seismic channel data. According to the technical scheme provided by the embodiments of the application, the resolution of the prestack seismic data can be improved.

Description

technical field [0001] The present application relates to the technical field of geophysical exploration data processing, in particular to a seismic data processing method and device. Background technique [0002] In the process of geophysical exploration processing and interpretation, pre-stack seismic gather data usually needs to be stacked to form post-stack data, and then delivered to the interpretation software (or module) for use. In actual production practice, the pre-stack seismic trace data in the pre-stack seismic trace set are not processed and analyzed before stacking. For low-resolution pre-stack seismic gathers, after stacking processing, it is often difficult to meet the requirements of high-precision processing of seismic data and fine description of reservoirs, and it is also not conducive for interpreters to perform more detailed analysis of seismic data of the target horizon. Explanation. Contents of the invention [0003] The purpose of the embodiment...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01V1/30
CPCG01V1/301G01V2210/48
Inventor 詹仕凡李磊陶春峰万忠宏崔京彬冉贤华
Owner BC P INC CHINA NAT PETROLEUM CORP