Liu Dongqin1, Li Xiaoheng1, Wang Guanmei1, Liu Liangqiong1, Li Haiying2, Zhang Chenyu3
1. Geological Research Center, GRI, BGP Inc., CNPC, Zhuozhou, Hebei 072751, China;
2. Research & Development Center, BGP Inc., CNPC, Zhuozhou, Hebei 072751, China;
3. China University of Geosciences (Beijing), Beijing 100083, China
Abstract：Sedimentary difference between the eastern and western of Block Su-75 in Sulige Gasfield causes characteristic differences in seismic data, gas reservoirs position, and AVO response. It is difficult to predict reservoir using single parameter and hydrocarbon indictor attributes obtained from AVO analysis. Based on CMP gathers analysis, forward modeling of gas-reservoirs theoretical model and gas-reservoirs actual model passing through a well, the absolute amplitude value of reflections from gas reservoirs increases with the offset no matter what AVO response polarity is from the reservoir top and bottom. So AVO can be used to detect effectively the thicker gas-bearing. Our research identifies the gas bearing distribution in Block Su-75 using pseudo poisson's ratio and pseudo shear wave reflective coefficient. The result is highly consistent with the well drilling data, which provides a strong support for the future oil and gas exploitation in the area.
刘东琴, 李晓恒, 汪关妹, 刘良琼, 李海鹰, 张晨雨. AVO技术在苏75区块含气性检测中的应用[J]. 石油地球物理勘探, 2013, 48(增刊1): 109-114.
Liu Dongqin, Li Xiaoheng, Wang Guanmei, Liu Liangqiong, Li Haiying, Zhang Chenyu. Hydrocarbon detection with AVO in Block Su-75. OGP, 2013, 48(增刊1): 109-114.
