Concave polygon region observation system automatic full coverage quick layout method

Abstract

The invention provides a concave polygon region observation system automatic full coverage quick layout method, which belongs to the field of seismic exploration and development. The method comprises the steps that (1) a unit template is established, wherein the unit template comprises the parameters of the number of detection lines, the number of detection points, track pitch, detection line pitch, detection point starting coordinates, the number of shot lines, the number of shot points, shot point pitch, shot line pitch and shot point starting coordinates; (2) rolling parameters and a concave polygon deployment boundary are established, wherein the rolling parameters comprises rolling azimuth, inline direction rolling pitch, x-line direction rolling pitch, and the deployment boundary is composed of a one-dimensional array and comprises all inflection point coordinates of the boundary, namely (x, y); and (3) a minimum full coverage region rectangle is calculated. According to the step (3), the minimum number of times of rolling in inline direction and the minimum number of times of rolling in x-line direction are calculated through the parameters of the unit template and the rolling parameters, wherein the minimum numbers of times are needed by unit template rolling layout to reach full coverage.

Description

technical field [0001] The invention belongs to the field of seismic exploration and development, and in particular relates to an automatic full-coverage rapid deployment method for an observation system in a concave polygonal area. Background technique [0002] With the rapid development of oil exploration and development technology, the application of high-density 3D seismic exploration is increasing, domestic exploration blocks are gradually transitioning from simple surface conditions to complex surface conditions such as piedmont zone, and the geological tasks provided by the target work area The deployment boundary of the project is becoming more and more complex. For example, the deployment boundary of the Chengdu 3D seismic survey project deployed and implemented by Sinopec in the Chengdu area from 2011 to 2012 was in the shape of a concave polygon (such as figure 2 ), there are as many as 50 inflection point coordinates, and the full coverage area reaches more than ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problems existing in the above-mentioned prior art, provide a method for automatic full-coverage rapid deployment of the observation system in a concave polygonal area, and solve the problem of automatic full-coverage rapid deployment of the three-dimensional observation system in the case of complex deployment boundaries, so that Technicians get rid of the inconvenience caused by manually designing the position of each beam of detector lines, and improve the rolling layout efficiency and inflection point accuracy of complex boundary cell templates

Images