ISSN 1004-4140
CN 11-3017/P
Volume 30 Issue 5
Sep.  2021
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WANG Zhaoqi, LI Lin, WANG Bin, WANG Xuefeng, LI Lisheng. Application of Broadband Seismic Data Processing Technology in the Description of Natural Gas Hydrate Ore Body[J]. CT Theory and Applications, 2021, 30(5): 547-554. DOI: 10.15953/j.1004-4140.2021.30.05.02
Citation: WANG Zhaoqi, LI Lin, WANG Bin, WANG Xuefeng, LI Lisheng. Application of Broadband Seismic Data Processing Technology in the Description of Natural Gas Hydrate Ore Body[J]. CT Theory and Applications, 2021, 30(5): 547-554. DOI: 10.15953/j.1004-4140.2021.30.05.02
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Application of Broadband Seismic Data Processing Technology in the Description of Natural Gas Hydrate Ore Body

  • Hangzhou Research Institudte of Petroleum Geology, Hangzhou 310023, China

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  • Received Date: June 16, 2021
  • Available Online: September 22, 2021
    Graphical Abstract
    • Abstract
  • A set of seismic data broadband processing technology based on adaptive ghost wave suppression is proposed to improve the resolution of data, which is difficult to be solved in natural gas hydrate (NGH) drilling. Firstly, ghost wave suppression technology based on upstream and downstream wave field separation is used to suppress the ghost wave of source and cable. Then the high quality velocity field is obtained by high precision grid tomography inversion velocity modeling technology while the imaging accuracy of hydrate layer is further improved by prestack depth migration imaging. The practice shows that compared with the conventional treatment, the broadband treatment provides clearer seismic characteristics and more detailed information, which is more conducive to the accurate description of the NGH ore body.
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