| Citation: |
ZHAI Gang-yi, BAO Shu-jing, WANG Yu-fang, CHEN Ke, WANG Sheng-jian, ZHOU Zhi, SONG Teng, LI Hao-han. Reservoir Accumulation Model at the Edge of Palaeohigh and Significant Discovery of Shale Gas in Yichang Area, Hubei Province[J]. Acta Geoscientica Sinica, 2017, (4): 441-447. doi: 10.3975/cagsb.2017.04.01
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Reservoir Accumulation Model at the Edge of Palaeohigh and Significant Discovery of Shale Gas in Yichang Area, Hubei Province
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Abstract
Based on the research on paleo-uplift of Weiyuan in Sichuan Basin, extrabasinal Xuefeng paleo-uplift and Hannan paleo-uplift, "the ancient uplift margin controlling reservoir model for shale gas accumulation mode" was innovatedly put forward. The ancient uplift margin has the characteristics that the buried depth is moderate around the magin with early uplift and weak tectonic deformation. All the information is conducive to the enrichment and preservation of shale gas. Under this guide theory and through the shale gas geological survey and 2D seismic exploration, preferably favorable areas of shale gas in Changyang in the west of Hubei Province were delineated. Through the drilling of Eyangye 1 well, "four floors" great discoveries of Tianheban Formation, Cambrian Niutitang Formation, Sinian Doushantuo Formation and Dengying Formation shale gas and natural gas were achieved, and this opens up a new field of shale gas exploration in South China. -
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ZHAI Gang-yi, BAO Shu-jing, WANG Yu-fang, CHEN Ke, WANG Sheng-jian, ZHOU Zhi, SONG Teng, LI Hao-han. Reservoir Accumulation Model at the Edge of Palaeohigh and Significant Discovery of Shale Gas in Yichang Area, Hubei Province[J]. Acta Geoscientica Sinica, 2017, (4): 441-447. doi: 10.3975/cagsb.2017.04.01
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