Dielectric interface amplitude compensation method and device

An amplitude compensation and interface technology, which is applied in the field of petroleum exploration, can solve the problems that affect the accuracy of seismic data processing, the accuracy of the amplitude compensation processing results is not high, and the distribution of seismic wave energy is not considered, so as to improve the accuracy and reduce the strong amplitude of the amplitude. The effect of uneven variation of weak features

Active Publication Date: 2018-06-19
BC P INC CHINA NAT PETROLEUM CORP +1
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Problems solved by technology

However, the energy distribution of seismic waves at the medium interface is not considered, which may lead to low accuracy of the amplitude compensation processing results at the medium interface and affect the processing accuracy of seismic data

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  • Dielectric interface amplitude compensation method and device
  • Dielectric interface amplitude compensation method and device
  • Dielectric interface amplitude compensation method and device

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[0062] 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.

[0063] During oil and gas exploration, seismic waves can usually be excited artificially, and seismic data can be received at each receiver point. Through the processing of seismic data, an image that can truly reflect the underground reflector is formed. Through image processing and analysis, the shape of the underground structure and th...

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Abstract

The invention provides a dielectric interface amplitude compensation method and device. the method comprises steps: according to to-be-analyzed seismic data, a root mean square amplitude value of a seismic trace is acquired; a dielectric interface is picked up, and according to the root mean square amplitude value of the seismic trace, an interface reflection amplitude value corresponding to the dielectric interface is calculated; according to the interface reflection amplitude value and a preset seismic energy general value, an interface transmission amplitude value corresponding to the dielectric interface is calculated; according to the interface transmission amplitude value, an interface amplitude compensation factor is calculated; and according to the interface amplitude compensationfactor and the root mean square amplitude value of the seismic trace, dielectric interface amplitude compensation operation is carried out. By using each embodiment in the invention, compensation on the amplitude at the dielectric interface is realized, the seismic data after amplitude compensation more truly reflect changes of underground geology, an accurate data base is provided for processingand interpretation of subsequent seismic data, and the seismic data processing result accuracy is improved.

Description

technical field [0001] The application belongs to the technical field of petroleum exploration, and in particular relates to a method and device for compensating the amplitude of a medium interface. Background technique [0002] With the development of science and technology, through the analysis and processing of logging technology and seismic data, oil and gas exploration is applied more and more in the field of petroleum exploration. Usually artificial methods can be used to excite seismic waves and receive seismic data at various receiver points. Through the processing of seismic data, an image that can truly reflect underground reflectors is formed. Through image analysis and processing, the shape of the underground structure and the wave impedance characteristics of the formation are identified, and whether there is oil and gas stored. Therefore, it is necessary to obtain seismic data that can accurately reflect the geological structure. [0003] Due to the complex g...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V1/28G01V1/30
Inventor 黄莉莉赵建章王勇李隆梅刘作强
Owner BC P INC CHINA NAT PETROLEUM CORP
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