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A method and device for calculating the number of face element coverage

A technology of coverage times and calculation methods, applied in the field of geophysical exploration, can solve problems such as effective evaluation and adverse observation system migration effects, and achieve the effect of effective evaluation of migration effects

Active Publication Date: 2018-01-02
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

Therefore, the calculated coverage times of a certain bin may be reflections from the center of other bins, rather than reflections from the real inclined surface, which is not conducive to the effective evaluation of the offset effect of the observation system

Method used

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  • A method and device for calculating the number of face element coverage
  • A method and device for calculating the number of face element coverage
  • A method and device for calculating the number of face element coverage

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Embodiment Construction

[0052] Embodiments of the present application provide a method and a device for calculating the number of bin coverages.

[0053] 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.

[0054] Seismic migration imaging is one of the three seismic data processing techniques (seismic deconvolution, stacking and migration imaging). Seismic migration refers to the use of specific methods to achieve the ...

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Abstract

The embodiment of the present application discloses a method and device for calculating the number of face element coverages. The method includes: performing pre-stack migration calculation on the acquired reflected energy corresponding to each offset pair in the preset observation system; and calculating the number of migration coverage times of each bin according to the pre-stack migration calculation result. Through the calculation method of bin coverage times disclosed in the embodiment of the present application, the quality of the pre-stack migration effect can be directly reflected, and an effective evaluation of the migration effect of the observation system can be realized.

Description

technical field [0001] The present application relates to the technical field of geophysical prospecting methods, in particular to a method and device for calculating bin coverage times based on a pre-stack migration algorithm. Background technique [0002] Petroleum geophysical exploration is based on the theory of geophysics and petroleum geology. It uses professional geophysical instruments and equipment to record underground information on the earth's surface or in the air or in wells, and obtains the structure and structure of underground formations through professional data processing and interpretation methods. Physical parameters, an exploration method for finding oil and natural gas hidden in the formation. [0003] The design of the seismic acquisition and observation system has a significant impact on the seismic data collected in petroleum geophysical exploration. The seismic acquisition and observation system is the key to determining the quality of seismic acq...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01V1/28
Inventor 李伟波刘厚军杨敬磊接铭丽睢永平张坤
Owner BC P INC CHINA NAT PETROLEUM CORP
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