| 武陵山复杂构造区古生界海相油气实现重大突破 |
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| 关键词:Wuling Mountain Qixia Formation Shiniulan Formation Wufeng–Longmaxi Formation Baota Formation gas |
| 基金项目:中国地质调查局地质调查项目“南方页岩气基础地质调查”(编号: 12120115004601)；全国油气资源战略选区项目(编号: 1211302108020) |
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| Breakthrough of the Natural Gas of Paleozoic Marine Strata in Wuling Mountain Complex Tectonic Zone |
| On the basis of an investigation of petroleum geological conditions of the residue syncline in Wuling Mountain complex structural belt and by contrasting main parameters of hydrocarbon reservoirs, the authors put forward the idea of paying special attention to evaluation of selected areas preserved by sedimentation and tectonics. The Anchang syncline favorable zone was chosen through optimization, and well Anye-1 was deployed. In this well, active oil and gas shows in Permian Qixia Formation have gas-bearing thickness up to 147 m. Multiple high pressure gas reservoirs were observed through drilling in Silurian Shiniulan Formation, and this was for the first time that high-yield gas flow was obtained in this formation in southern China. In addition, a small amount of heavy oil was observed. Nearly 20 m high gas-bearing carbonaceous shale was drilled in the Upper Ordovician Wufeng Formation–Lower Silurian Longmaxi Formation. It meets the shale gas standard for commercial development and further expands the range of commercial exploration of shale gas in southern China. In addition, high pressure gas reservoir was drilled in Ordovician Baota Formation which was also the first discovery. |
| ZHAI Gang-yi,BAO Shu-jing,PANG Fei,REN Shou-mai,ZHAO Fu-ping,ZHANG Fu,ZHOU Zhi,WANG Du-le.2016.Breakthrough of the Natural Gas of Paleozoic Marine Strata in Wuling Mountain Complex Tectonic Zone[J].Acta Geoscientica Sinica,37(6):657-662. |
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