海上压缩感知地震采集技术研究与应用

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中图分类号:P631 文献标识码:A DOI:10.13810/j.cnki.issn.1000-7210.20250175

Abstract: By random sampling, compressive sensing seismic acquisition can significantly improve seismic acquisition efficiency and reduce seismic acquisition costs. Therefore,a design method and workflow are proposed for an offshore compressive sensing seismic acquisition geometry.Firstly, in response to the alias and difficulty in anti-alias reconstruction in the evaluation of ofshore compresive sensing seismic acquisition geometry and field data procesing,a frequency-wave number domain weighted anti-alias data reconstruction method is put forward.Then,the developed efficient offshore compressve sensing seismic acquisition technology and data reconstruction method are applied to a real survey ofa volcanic buried hillin the South China Sea.A wide azimuth ocean bottom nodes compresive sensing acquisition geometry is also designed.The quality,feasibility,cost reductionand eficiency improvement of the compressivesensing acquisition geometryare evaluatedby the methods including data reconstruction.The designed compressive sensing acquisition scheme is successully implemented in the real survey in the South China Sea,obtaining the first independently designed and implemented offshore compresive sensing acquisition field data in China.The application results show that,under the premise of reducing costs and increasing efficiency by 25% ,the compressive sensing acquisition in this survey achieves comparable results to the conventional acquisition,providing effective support for the subsequent research and promotion of efficient offshore compressive sensing acquisition technology.

Keywords: compressive sensing,ocean bottm node, efficient seismic acquisition, volcanic buried hil uang Xiaogang,Liu Zhipeng,Liu Zheng,et al.Research and application of offshore compressive sens seismic acquisition technology[J]. Oil Geophysical Prospecting,2026,61(2): 303-314.

0 引言

随着海上油气勘探进入二次三维地震勘探阶段,地震采集的炮道密度急剧加大,采集成本大幅增加。(剩余14645字)

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