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Comparative study of gas accumulations in the Permian Changxing reefs and Triassic Feixianguan oolitic reservoirs between Longgang and Luojiazhai-Puguang in the Sichuan Basin |
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| Authors: | WenZhi Zhao ChunChun Xu TongShan Wang HongJun Wang ZeCheng Wang CongSheng Bian Xia Li |
| Institution: | ZHAO WenZhi 1*,XU ChunChun 2,WANG TongShan 3*,WANG HongJun 3,WANG ZeCheng 3,BIAN CongSheng 3 & LI Xia 3 1 PetroChina Exploration & Production Company,Beijing 100007,China,2 PetroChina Southwest Oil & Gas Field Company,Chengdu 610051,3 PetroChina Research Institute of Petroleum Exploration & Development,Beijing 100083 |
| Abstract: | Reef and oolitic gas reservoirs in the Permian Changxing and Triassic Feixianguan formations have been discovered in both the Luojiazhai-Puguang and Longgang areas of the Sichuan Basin, but the accumulation scale, abundance and distribution patterns differ greatly. In fact, the two areas have more differences than they have similarities. Similarities include: (1) the lithology, properties and types of porosity of the reef and oolitic reservoirs are primarily consistent in the two areas; (2) well-developed r... |
| Keywords: | advantage transport of fault pathway non-equilibrium transport of fracture pathway integral accumulation with high abundance heterogeneous accumulation with low abundance Sichuan Basin |
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