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A method and device for moving shot points in obstacle areas of a three-dimensional seismic acquisition and observation system

An observation system and 3D seismic technology, applied in seismic signal recording, seismic energy generation, etc., to achieve the effect of maintaining smoothness and uniformity of shot point placement, improving overall placement rationality, and maintaining uniformity

Active Publication Date: 2021-12-10
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology

[0009] The purpose of the present invention is to provide a method and device for moving shot points in the obstacle area of ​​the three-dimensional seismic acquisition and observation system, which is used to solve the problem of how to improve the rationality of the overall placement of multiple shot points removed

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  • A method and device for moving shot points in obstacle areas of a three-dimensional seismic acquisition and observation system
  • A method and device for moving shot points in obstacle areas of a three-dimensional seismic acquisition and observation system
  • A method and device for moving shot points in obstacle areas of a three-dimensional seismic acquisition and observation system

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[0033] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0034] Example of the method for moving the shot point in the obstacle area of ​​the 3D seismic acquisition and observation system:

[0035] This embodiment provides a method for moving shot points in the obstacle area of ​​the three-dimensional seismic acquisition and observation system. The movement method is based on the coordinate data of the theoretical three-dimensional seismic acquisition and observation system and the polygonal coordinate data representing the boundary of the obstacle area in the target area. The grid control parameters of the grid and the boundary of the polygonal model are controlled, and the theoretical shot points designed in the obstacle area are moved to a suitable position outside the polygon in batches, and ...

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Abstract

The invention relates to a method and device for moving shot points in obstacle areas of a three-dimensional seismic acquisition and observation system. The theoretical shot line distance and theoretical shot point distance construct grid control parameters; according to the boundary of the obstacle area, a polygonal model representing the boundary of the obstacle area is formed, and the number of theoretical shot points covered in the polygonal model is n; around the polygonal model, according to the grid control The parameters form m space grids, m≥n; move n shot points in the polygonal model to n space grids. The invention maintains the smoothness of the shot line and the uniformity of the placement of the shot points, and improves the rationality of the overall placement of multiple shot points.

Description

technical field [0001] The invention relates to a method and device for moving a shot point in an obstacle area of ​​a three-dimensional seismic acquisition and observation system, and belongs to the technical field of seismic exploration acquisition design. Background technique [0002] The design of the 3D seismic acquisition and observation system is an important part of the geophysical exploration process. When the target construction area designed by the 3D seismic acquisition and observation system encounters a complex surface environment, such as urban areas, villages, factories, mines, rivers, reservoirs, In obstacle areas such as lakes and swamps, the shot points in the designed theoretical 3D seismic acquisition and observation system cannot be constructed in the obstacle area. At this time, it is necessary to carry out the variable view design of the obstacle area. During the design process, the theoretical shot point designed in the obstacle area needs to be move...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01V1/06G01V1/24
CPCG01V1/06G01V1/24
Inventor 魏长洲秦广胜蔡其新孟凡冰蒋先勇张德生王莉万龙
Owner CHINA PETROLEUM & CHEM CORP
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