Collection method detector arrangement length quantitative analysis method based on energy statistics

Abstract

The present invention provides a collection method detector arrangement length quantitative analysis method based on energy statistics. The method comprises the steps of: selecting an exploration target stratum, and arranging seismic source points and receiver points; performing downward propagation and prolongation of wave field energy from positions of the seismic source points, performing reflection of the wave field energy through the target stratum, forming a second seismic source, taking energy of the target stratum at this moment as an energy value of the second seismic source to perform back propagation and prolongation to the earth's surface, recording energy values received by the receiver points, and marking the energy values as energy values of shot-to-receiver pairs; obtainingone energy value of each shot-to-receiver pair, drawing a shot-to-receiver pair energy value map, taking a diagonal line of the map as a zero-offset line, and obtaining a reference line being parallel to the zero-offset line according to the distribution range of the shot-to-receiver pair energy values, wherein values of points of intersection of the reference line and the receiver point lines are reasonable detector arrangement length for the current target stratum. The method provided by the invention can achieve quantitative evaluation of the detector arrangement length so as to optimize acollection observation system, save the construction cost and improve the collection data quality.

Description

Technical field [0001] The invention relates to the field of optimization design of petroleum seismic exploration acquisition schemes, and more specifically, relates to a method for quantitatively analyzing the arrangement length of geophones in the acquisition scheme. Background technique [0002] The complex mountainous areas in the west are oil and gas enriched areas with a low degree of exploration. Because of the complex surface seismic conditions and underground geological conditions in mountainous areas, the requirements for seismic exploration equipment and seismic exploration technology are high, so many conventional seismic exploration technologies cannot be applied to mountainous areas. 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 declining resources in plain areas, the development and utilization of mountain oil and gas reso...

AI Technical Summary

Problems solved by technology

As a result, illuminance analysis is more of a qualitative point of view in guiding the design of the observation system, and cannot guide the optimization design of the observation system from a quantitative point of view. The maximum offset analysis is an important parameter in the design of the two-dimensional observation system, which is urgently needed in actual production. quantitative analysis

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