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Moving method and device for shot point in obstacle area of three-dimensional seismic acquisition and observation system

An observation system, a three-dimensional seismic technology, is applied in the directions of seismic energy generation and seismic signal recording to achieve the effect of maintaining uniformity, smoothness, and uniformity of shot placement, and improving the rationality of overall placement.

Active Publication Date: 2020-03-27
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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  • Moving method and device for shot point in obstacle area of three-dimensional seismic acquisition and observation system
  • Moving method and device for shot point in obstacle area of three-dimensional seismic acquisition and observation system
  • Moving method and device for shot point in obstacle area of three-dimensional seismic acquisition and observation system

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Embodiment Construction

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

[0034] Examples of methods for moving shot points in obstacle areas of 3D seismic acquisition and observation system:

[0035] This embodiment provides a method for moving shot points in the obstacle area of ​​a three-dimensional seismic acquisition and observation system. The method is based on theoretical three-dimensional seismic acquisition and observation system coordinate data and polygon 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 polygon model are controlled. The theoretical shot points designed in the obstacle area are moved to the appropriate position outside the polygon in batches, and then the attributes are analyzed uniformly t...

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Abstract

The invention relates to a moving method and device for shot points in an obstacle area of a three-dimensional seismic acquisition and observation system, and the method comprises the steps: buildinga theoretical shot point distribution model representing the distribution of shot points according to the coordinate data of a theoretical observation system; constructing a grid control parameter according to a theoretical shot line distance and a theoretical shot point distance in the theoretical shot point distribution model; forming a polygon model representing the boundary of the obstacle area according to the boundary of the obstacle area, wherein the number of theoretical shot points covered in the polygon model is n; m vacancy grids are formed around the polygon model according to thegrid control parameters, and m is larger than or equal to n; and moving n shot points in the polygon model to n vacancy grids. According to the invention, the smoothness of the shot line and the uniformity of shot point placement are maintained, and the overall placement rationality of a plurality of shot points is improved.

Description

Technical field [0001] The invention relates to a method and device for moving shot points in an obstacle area of ​​a three-dimensional seismic acquisition observation system, belonging 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 complex surface environments, such as urban areas, villages, factories and mines, rivers, reservoirs, In obstacle areas such as lakes and swamps, the shot points located in the obstacle area in the designed theoretical 3D seismic acquisition and observation system cannot be constructed. At this time, it is necessary to carry out the variable design of the obstacle area. During the design process, the theoretical shot point designed in the obstacle area needs to be moved to a ...

Claims

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Application Information

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Patent Type & Authority Applications(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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