Method and equipment for evaluating imaging effect of three-dimensional earthquake observing system

Abstract

Provided is a method and equipment for evaluating the imaging effect of a three-dimensional earthquake observing system. The method comprises the steps of leading in data of the earthquake observing system, carrying out reranking on earthquake detection pairs in the data of the earthquake observing system according to surface element positions, setting a target region and selecting a plurality of target point positions in the target region, carrying out the following procedures on each target point position of the selected target point positions: calculating the earthquake wave migration imaging coefficient of each earthquake detection pair in the data of the earthquake observing system in the target point positions, adding all the earthquake wave migration imaging coefficients of all the earthquake detection pairs in the data of the earthquake observing system in the target point positions to obtain the final earthquake wave migration imaging coefficients of the target point positions, and drawing the earthquake wave migration imaging distribution diagram of the target area according to the final earthquake wave migration imaging coefficients of the target point positions in the target area. The method and equipment achieve the quantitative evaluation of earthquake wave migration imaging quality, and improve the fidelity of earthquake collected data.

Description

technical field [0001] The invention relates to the field of optimization design of a three-dimensional seismic exploration system for petroleum seismic exploration, and more specifically relates to a method and equipment for evaluating the imaging effect of the three-dimensional seismic observation system. Background technique [0002] With the development of science and technology and the continuous improvement of people's living standards, people's demand for energy is increasing. At the same time, under the situation of decreasing resources in plain areas, the development and utilization of mountain oil and gas resources is one of the ways to solve energy replacement. The complex mountainous area in the west is an oil-gas-rich area with a low degree of exploration. In the past 20 years, equipment suitable for mountainous seismic exploration has been successfully developed, and geophysical technology and computing technology have also been continuously improved, which has ...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the defect that the conventional three-dimensional seismic observation system imaging effect evaluation method cannot be applied to the complex surface conditions of mountainous areas, and propose a rapid quantitative evaluation method for the imaging effect of the three-dimensional seismic observation system under the undulating surface conditions of mountainous areas

Images