Volume 47 Issue 1
Feb.  2019
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LIU Yang, ZHAO Hu, YIN Cheng, WU Sihai, DAI Ronghuo, DI Zhixin. Elastic wave prestack reverse time migration on undulating surfac[J]. COAL GEOLOGY & EXPLORATION, 2019, 47(1): 181-186. DOI: 10.3969/j.issn.1001-1986.2019.01.028
Citation: LIU Yang, ZHAO Hu, YIN Cheng, WU Sihai, DAI Ronghuo, DI Zhixin. Elastic wave prestack reverse time migration on undulating surfac[J]. COAL GEOLOGY & EXPLORATION, 2019, 47(1): 181-186. DOI: 10.3969/j.issn.1001-1986.2019.01.028
shu

Elastic wave prestack reverse time migration on undulating surfac

  • 1. School of Geosciences and Technology, Southwest Petroleum University, Chengdu 610500, China;

  • 2. Technology Research and Development Center of Petroleum Engineering Geophysics Co. Ltd. of SINOPEC, Beijing 100020, China

Funds: 

National Science and Technology Major Project(2016ZX05024-001)

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  • Received Date: October 15, 2017
  • Published Date: February 24, 2019
    Graphical Abstract
    • Abstract
  • At present, seismic exploration is facing many challenges in the "double complex" area, especially the undulating surface make it difficult to accurately image the underground complex structures. In this paper, we have studied the elastic wave prestack reverse time migration method for undulating surface, and a simple and effective treatment method was adopted to solve the free boundary conditions of undulating surface. In addition, the storage strategy of the effective boundary was used to solve the problem of big storage of elastic wave prestack reverse time migration. The numerical experimental results also show that this method can accurately reconstruct the source wave field. Finally, test of SEG Canadian overthrust fault model for undulating surface has further verified the effectiveness of the method proposed in this paper.
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    • References (19)
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