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Method and system for evaluating bin uniformity of 3D seismic observation system

An observation system, 3D seismic technology, applied in the field of 3D seismic exploration observation system

Active Publication Date: 2022-03-08
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these methods either only consider the distribution of offsets, or even consider the problem of azimuth, they still consider the offset first, and then evaluate the offset distribution of different azimuths one by one, without taking the offset The azimuth angle is taken into consideration as a whole

Method used

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  • Method and system for evaluating bin uniformity of 3D seismic observation system
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  • Method and system for evaluating bin uniformity of 3D seismic observation system

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Embodiment Construction

[0066] The present invention will be described in more detail below with reference to the accompanying drawings. Although preferred embodiments of the invention are shown in the drawings, it should be understood that the invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0067] figure 1 A flowchart showing a bin uniformity evaluation method of a 3D seismic observation system according to an exemplary embodiment of the present invention. Such as figure 1 As shown, the method includes steps S1-S6.

[0068] In step S1, the azimuth-offset data pair of each panel of the 3D seismic observation system is input.

[0069] The 3D seismic observation system is an observation method that describes the spatial position relationship between the excitation point ...

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Abstract

A method and system for evaluating bin uniformity of a 3D seismic observation system. The method includes: 1) inputting the azimuth-offset data pair of each bin in the 3D seismic observation system; 2) mapping the azimuth-offset data pair of each bin on the respective bin 3) Set a standard bin two-dimensional space with uniform azimuth and offset, and map its azimuth-offset data pair into the standard bin two-dimensional space; 4) For one of the bins, Utilize the standard bin two-dimensional space in step 3) and the data calculation correlation of the bin two-dimensional space of the bin; 5) traverse all bins of the three-dimensional seismic observation system, and calculate the correlation of each bin . The present invention quantitatively calculates the correlation degree of each bin azimuth and offset two-dimensional space with the standard bin azimuth and offset two-dimensional space distribution, and quantitatively evaluates the bin azimuth and offset of the observation system Distribution uniformity, and can give evaluation results through intuitive data graphics.

Description

technical field [0001] The invention relates to the field of three-dimensional seismic exploration and observation systems, and more specifically, to a method and system for evaluating the uniformity of bins in a three-dimensional seismic observation system. Background technique [0002] 3D seismic exploration technology is the mainstream technology of oil exploration at present. The quality of the 3D seismic observation system directly affects the quality of the collected seismic data, and then affects the effect of seismic exploration. Therefore, the evaluation of 3D seismic observation system is very important. The bin attribute of 3D seismic observation system is one of the important means to evaluate 3D observation system, and the distribution of bin azimuth and offset is the most important bin attribute. [0003] No matter from the point of view of acquisition or imaging, an ideal 3D observation system requires a full range of bin azimuths and uniform distribution of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01V13/00
CPCG01V13/00
Inventor 陈占国殷厚成曾昭翰
Owner CHINA PETROLEUM & CHEM CORP
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