Xie Jielai1, Zhang Yuxiao1, Li Zhengzhong2, Dai Shuanghe3, Chen Yuanzhong1, Guo Zenghu1
1. Geological Research Center, GRI, BGP Inc., CNPC, Zhuozhou, Hebei 072751, China;
2. China University of Petroleum (Beijing), Beijing 102249, China;
3. School of Earth and Space Sciences, Peking University, Beijing 100871, China
Abstract：Glacial reservoir rocks are characterized by their variable thickness, quickly-varied lithology and highly lateral heterogeneity. So it is difficult to identify and evaluate this kind of reservoir rocks in oil & gas exploration. According to the reservoir features of glacial sand in D'M layer of Ordovician in the Block X, Algeria, first we have accurately identified the thickness and the distribution of sands using seismic half energy time attribute. Then we have evaluated reservoir efficiency using fluid mobility. Results are proved as a breakthrough of deep stratum oil & gas exploration in this block.
