Method and device for acquiring two-dimensional survey line
A technology for surveying lines and line segments, applied in the field of geophysical exploration, can solve problems such as large errors, time-consuming and labor-intensive, and achieve the effect of improving accuracy and construction efficiency
Active Publication Date: 2015-04-08
BC P INC CHINA NAT PETROLEUM CORP +1
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Problems solved by technology
[0002] Two-dimensional seismic exploration needs to arrange survey lines on the ground, and carry out seismic exploration construction along each survey line. In the past, two-dimensional survey lines in high and steep mountainous areas were obtained through on-the-spot observation by construction personnel or with the help of satellite aerial photographs. Experience to determine, often large error, time-consuming and labor-intensive
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[0044] 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.
[0045] The specific implementation of the embodiment of the present application will be described in detail below with several specific examples.
[0046] The following firstly introduces an embodiment of a method for obtaining a two-dimensional survey line of the present application. combined with figure 1 , the example includes:
[0...
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The embodiments of the invention provide a method and device for acquiring a two-dimensional survey line. The method comprises the steps: acquiring start point coordinates and end point coordinates of a preset two-dimensional survey line; determining two offset boundary line segments of the two-dimensional survey line according to the start point coordinates and end point coordinates of the two-dimensional survey line and a preset first offset; taking the start point coordinates of the two-dimensional survey line as a first inflection point; taking the inflection point as an end point, and acquiring a preset quantity of rays according to a preset corner limit value; calculating slope values of physical points on ray segments, in the two offset boundary line segments, of the rays, and acquiring slope value sums of all the physical points on the ray segments; comparing the slope value sums of all the physical points on all the ray segments, and taking the ray segment with the minimal slope value sum as an optimized two-dimensional survey line segment; taking the last physical point, in the boundary line segment direction, of the optimized two-dimensional survey line segment as an inflection point; cycling the step of obtaining the optimized survey line segment, thereby finally obtaining the optimized and high-accuracy two-dimensional survey line.
Description
technical field [0001] The invention relates to the technical field of geophysical prospecting, in particular to a method and device for obtaining a two-dimensional survey line. Background technique [0002] Two-dimensional seismic exploration needs to arrange survey lines on the ground, and carry out seismic exploration construction along each survey line. In the past, two-dimensional survey lines in high and steep mountainous areas were obtained through on-the-spot observation by construction personnel or with the help of satellite aerial photographs. Determination by experience often has large errors and is time-consuming and labor-intensive. [0003] Two-dimensional survey line exploration construction in mountainous areas is difficult due to the complex surface terrain and large undulating height difference. It is difficult to construct in some mountainous areas with high and steep terrain. Reasonable design of two-dimensional survey lines and avoiding steep areas can i...
Claims
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IPC IPC(8): G01V1/28
Inventor 白志宏胡永贵郭武睢永平李伟波
Owner BC P INC CHINA NAT PETROLEUM CORP