Lithologic Reservoirs ›› 2018, Vol. 30 ›› Issue (4): 84-90.doi: 10.12108/yxyqc.20180409

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Evaluation of shale gas resource potential of Late Permian Dalong Formation in western Hubei province

YU Jianghao, WANG Deng, WANG Yi, XIE Tong, SHI Xianbin, CHEN Wei   

  1. Hubei Geological Survey, Wuhan 430034, China
  • Received:2017-09-27 Revised:2017-11-07 Online:2018-07-21 Published:2018-07-21

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Abstract: The exploration breakthrough of Cambrian and Precambrian shale gas in Zigui area,Yichang,Hubei province,shows favorable exploration prospects for shale gas in western Hubei province. The western region of Hubei province is the key area for shale gas exploration and development and is also the most likely area to achieve a commercial breakthrough of shale gas. Field profile survey and correlation,old well reexamination, geochemical and gas-bearing property analysis of shale samples were carried out. It is considered that it was mainly basin sedimentary environment in the Late Permian Dalong Formation in Jianshi-Hefeng area. The effective thickness of the deposited black shale is about 30 m,and the hydrocarbon generation material basis is fine. The shale gasmass volume of Dalong Formation is more than 2 m3/t,and the average shale gas mass volume of the shale samples measured by isothermal adsorption experiment reaches 2.58 m3/t. showing favorable prospects of shale gas exploration. The Permian Dalong Formation in western Hubei is most likely to be a new demonstration area for shale gas exploration in Hubei province since the demonstration area of Cambrian and Precambrian in Zigui region, which is expected to open up a new situation of shale gas exploration and development in Hubei province.

Key words: reservoir characteristics, tight sandstone, diagenesis, Taiyuan Formation, Ordos Basin

CLC Number: 

  • P618.13
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