Current situations and recent progress in different azimuths seismic exploration
Gong Mingping1, Zhang Junhua1, Wang Yanguang2, Liu Libin2, Li Hongmei2, Wu Xiyuan1
1. School of Geosciences, China University of Petroleum(East China), Qingdao, Shandong 266580, China; 2. Geophysical Research Institute, Shengli Oilfield Branch Co., SINOPEC, Dongying, Shandong 257022, China
Abstract:This paper summarizes recent progress in different azimuth seismic exploration from three aspects including acquisition,processing,and interpretation:A.Using coil gathers and snail gathers combined with multi-source simultaneous shooting can reduce the exploration cost and efficiency improve wide-azimuth acquisition; B.The offset vector tile (OVT) can solve azimuth anisotropy problems,preserve offset and azimuth information,and improve seismic imaging accuracy in the process; C.Azimuthal anisotropy within seismic wave propagation in fractured strata can be used to improve fracture prediction,but there are very fewer application examples of surface seismic.So the future research should pay more attention to the aspect in order to improve fracture prediction accuracy; D.Azimuth-relative attribute (for instance AVAZ) fusion with coherence consistency can effectively predict fractures and stratigraphic lithology.
龚明平, 张军华, 王延光, 刘立彬, 李红梅, 吴系源. 分方位地震勘探研究现状及进展[J]. 石油地球物理勘探, 2018, 53(3): 642-658.
Gong Mingping, Zhang Junhua, Wang Yanguang, Liu Libin, Li Hongmei, Wu Xiyuan. Current situations and recent progress in different azimuths seismic exploration. Oil Geophysical Prospecting, 2018, 53(3): 642-658.
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