Application of Anisotropic Pre-stack Time Migration in Dongpu Sag

China Petroleum Exploration ›› 2009, Vol. 14 ›› Issue (6): 65-68,1.

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Application of Anisotropic Pre-stack Time Migration in Dongpu Sag

Qin Guangsheng,Cai Qixin,Zhang Shuhai,Wang Gonghuai and Liu Jinzhong

Qin Guangsheng1,2,Cai Qixin2,Zhang Shuhai2,Wang Gonghuai2,Liu Jinzhong3 1.China University of Geosciences,Beijing 100039;2.Geophysical Research Institute of SINOPEC Zhongyuan Oilfield Company,Puyang City,Henan Province 457001;3.Geological Logging Division of SINOPEC Zhongyuan Oilfield Company,Puyang City,Henan Province 457001

Online:2009-12-15 Published:2009-12-15

Abstract

Abstract: When velocity anisotropy exists in subsurface rocks, the conventional isotropic migration methods may lead to not only wrong imaging position but also inaccurate image quality. This paper presents a method of anisotropic pre-stack time migration with real 3D seismic data in Dongpu sag. First, velocity and anisotropy parameters are obtained by using bi-spectral velocity analysis, and then the pre-stack data is migrated with an anisotropic method. Good imaging results are fulfilled in real 3D data

Key words: anisotropy, pre-stack time migration, bi-spectral velocity analysis, Dongpu sag

CLC Number:

P631.4

Qin Guangsheng, Cai Qixin, Zhang Shuhai, Wang Gonghuai and Liu Jinzhong. Application of Anisotropic Pre-stack Time Migration in Dongpu Sag[J]. China Petroleum Exploration, 2009, 14(6): 65-68,1.

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Application of Anisotropic Pre-stack Time Migration in Dongpu Sag

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