Abstract：Dim-spot targets in mid-deep layers with high temperature and high pressure in Yinggehai Basin have great exploration potential.Conventional reservoir prediction and fluid identification methods are rather effective for the mid-shallow bright-spot reservoir identification in the area,but can hardly identify dim-spot reservoirs.Based on the Fatti equation,a dim-spot reservoir indicative factor related only to longitudinal and transverse wave impedance is constructed with the relation of relatively small intercept for dim-spot,which can highlight differences of the Class II AVO abnormality.Numerical simulations show that this factor can be used to well identify the Class II AVO abnormality.Seismic data applications verify the validity and reliability of the proposed factor.
谢玉洪, 邓勇, 李芳, 李洋森, 潘光超. 莺歌海盆地“暗点”型油气藏指示因子构建及应用[J]. 石油地球物理勘探, 2019, 54(6): 1302-1309.
XIE Yuhong, DENG Yong, LI Fang, LI Yangshen, PAN Guangchao. A dim-spot reservoir indicative factor in the Yinggehai Basin. Oil Geophysical Prospecting, 2019, 54(6): 1302-1309.
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