A rapid deployment method for automatic full coverage of observation systems in concave polygonal areas

Abstract

The invention provides an automatic full-coverage rapid deployment method for an observation system in a concave polygon area, belonging to the field of seismic exploration and development. The method includes: (1) establishing a unit template: the unit template is composed of the following parameters: the number of detection lines, the number of detection points, the trace distance, the distance between detection lines, the initial coordinates of detection points, the number of shot lines, the number of shot points, the number of shot Point distance, shot line distance, shot point starting coordinates; (2) set up rolling parameters and concave polygon deployment boundary: described rolling parameters include: rolling azimuth, inline direction rolling distance, x-line direction rolling distance; described deployment The boundary is composed of a one-dimensional array, including the coordinates of all inflection points of the boundary, that is, (x, y); (3) Calculate the minimum full coverage area rectangle: through the parameters of the unit template and the rolling parameters, calculate the rolling layout of the unit template to achieve full coverage The minimum number of scrolls required in the inline direction and the minimum number of scrolls in the x‑line direction.

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 image 3 ), there are as many as 50 inflection point coordinates, and the full coverage area reaches more than 1...

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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

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