Design method of earthquake acquiring and observating system based on GPU/CPU cooperative parallel
A technology of observation system and design method, applied in seismology, geophysical measurement, seismic signal processing, etc., can solve the problem of large error of ray analysis method, improve work efficiency, solve the shortage of complex structural areas, and have broad market application prospects Effect
Inactive Publication Date: 2019-01-15
CHINA PETROLEUM & CHEM CORP +1
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[0003] The purpose of the present invention is to provide a method for designing a seismic acquisition and observation system based on GPU / CPU synergy and parallelism, so as to solve the technical problem that the ray analysis method causes large errors in complex structural areas
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[0021] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.
[0022] The present invention utilizes GPU-based wave equation forward modeling technology to guide and improve seismic acquisition design, forming a set of advanced, practical and strong design method based on GPU / CPU synergistic parallel 3D model forward modeling seismic acquisition observation system, the flow of the method like figure 1 As shown, it specifically includes the following steps.
[0023] 1. First, use the existing interpreted seismic data in the exploration area to generate a three-dimensional geological model, and establish the reliability of the geological model through the analysis of the existing data.
[0024] 2. Select a reasonable scope of the main parameters of the observation system through the demonstration of seismic parameters and design a set of high-density observation system based on the results of the demonst...
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The invention relates to a design method of a earthquake acquiring and observating system based on GPU / CPU cooperative parallel, and belongs to the technical field of petroleum natural gas seismic exploration and investigation. The earthquake acquiring and observating system design method based on GPU / CPU cooperative parallel comprises the following steps of: generating a three-dimensional geological model according to the collected data; performing a forward simulation on the generated three-dimensional geological model by adopting an algorithm based on GPU / CPU cooperative parallel; and performing two-dimensional and three-dimensional seismic wave field analysis on the forward simulated seismic data to generate a simulated prestack offset profiles for seismic imaging research, and analyzing the seismic imaging effect changes caused by changes of design parameters of the observating system to guide the design of the observating system. According to the design method of an earthquake acquiring and observating system based on GPU / CPU cooperative parallel, a three-dimensional geological model fluctuation equation based on GPU / CPU cooperative parallel is used to forward simulate to verificate and analysis the parameters of the observating system, the observating system is optimized, the purpose of improving the collection quality is achieved, the technical problem that a ray analysis method is insufficient in complex construction area is solved, thereby greatly reducing the cost; the working efficiency is improved; and the earthquake acquiring and observating system design method based on GPU / CPU cooperative parallel has wide market application prospect.
Description
technical field [0001] The invention relates to a design method of a seismic acquisition and observation system based on GPU / CPU synergy and parallelism, and belongs to the technical field of oil and gas seismic exploration and investigation. Background technique [0002] In seismic exploration, with the continuous exploration and development of oil and natural gas, the geological problems faced by geophysical exploration are becoming more and more complex. The design of seismic acquisition and observation system needs to solve more technical problems, and the scientific and rational design needs to have more sufficient Argumentative means to support. Forward modeling based on ray tracing plays an extremely important role in this respect. However, in anisotropic strata with complex underground geological conditions, the simple ray analysis method has some shortcomings in the face of complex geological targets. (such as: reflection blank areas, reflection amplitude values ...
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IPC IPC(8): G01V1/00G01V1/28G01V1/30
Inventor 张付生朱艳保廖仁毛国良马亚松
Owner CHINA PETROLEUM & CHEM CORP