Volume 37 Issue 6
Dec.  2009
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LE You-xi, YUAN Qing, XUE Zhi-gang, GUO Xu-guang, LIU Wang-dong, LI Xue-yan, FAN Guang-xu. Elastic wave prestack depth migration based on screen method[J]. COAL GEOLOGY & EXPLORATION, 2009, 37(6): 58-62. DOI: 10.3969/j.issn.1001-1986.2009.06.014
Citation: LE You-xi, YUAN Qing, XUE Zhi-gang, GUO Xu-guang, LIU Wang-dong, LI Xue-yan, FAN Guang-xu. Elastic wave prestack depth migration based on screen method[J]. COAL GEOLOGY & EXPLORATION, 2009, 37(6): 58-62. DOI: 10.3969/j.issn.1001-1986.2009.06.014
shu

Elastic wave prestack depth migration based on screen method

  • 1. College of Geo-Resource and Information, China University of Petroleum, Qingdao 266555, China;

  • 2. Exploration and Development Institute of Xinjiang Oil Field, Kelamayi 834000, China;

  • 3. Shixi Field Operation District of Xinjiang Oil Field, Kelamayi 834000, China;

  • 4. Luliang Field Operation District of Xinjiang Oil Field, Kelamayi 834000, China

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  • Received Date: December 04, 2008
  • Available Online: March 12, 2023
    Graphical Abstract
    • Abstract
  • Elastic wave migration is one of the key technologies of multicomponent exploration. In this paper, the finite-difference compensation in Fourier finite-difference method of acoustic equation is applied to elastic screen propagator. Vector imaging condition is used through calculating polarized vector, and projecting component to polarized direction. It makes the information carried in wave field used efficiently and resolves the polarization issue of P-SV in imaging, which allows partial images from different sources and can be stacked to generate a final image. Finally, elastic screen propagator with wide angle correction and vector imaging condition are tested with model data, and the migration result is ideal.
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