About This Item
- Full TextFull Text(subscription required)
- Pay-Per-View PurchasePay-Per-View
Purchase Options Explain
Share This Item
The AAPG/Datapages Combined Publications Database
AAPG Bulletin
Abstract
AAPG Bulletin, V.
DOI: 10.1306/09152120028
Indication of origin and distribution of coalbed gas from stable isotopes of gas and coproduced water in Fukang area of Junggar Basin, China
Qiong Wang,1 Hao Xu,2 Dazhen Tang,3 Shuguang Yang,4 Gang Wang,5 Pengfei Ren,6 Wenyang Dong,7 and Jingzhen Guo8
1School of Energy Resources, China University of Geosciences (Beijing), Beijing, China; Coal Reservoir Laboratory of National Engineering Research Center of Coalbed Methane (CBM) Development & Utilization, China University of Geosciences, Beijing, China; Beijing Key Laboratory of Unconventional Natural Gas Geological Evaluation and Development Engineering, Beijing, China; [email protected]
2School of Energy Resources, China University of Geosciences (Beijing), Beijing, China; Coal Reservoir Laboratory of National Engineering Research Center of CBM Development & Utilization, China University of Geosciences, Beijing, China; Beijing Key Laboratory of Unconventional Natural Gas Geological Evaluation and Development Engineering, Beijing, China; [email protected]
3School of Energy Resources, China University of Geosciences (Beijing), Beijing, China; Coal Reservoir Laboratory of National Engineering Research Center of CBM Development & Utilization, China University of Geosciences, Beijing, China; Beijing Key Laboratory of Unconventional Natural Gas Geological Evaluation and Development Engineering, Beijing, China; [email protected]
4CBM Research & Development Center, Xinjiang Coal Field Geology Bureau, Urumqi, Xinjiang, China; [email protected]
5CBM Research & Development Center, Xinjiang Coal Field Geology Bureau, Urumqi, Xinjiang, China; [email protected]
6State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Chengdu University of Technology, Chengdu, Sichuan, China; [email protected]
7School of Energy Resources, China University of Geosciences (Beijing), Beijing, China; Coal Reservoir Laboratory of National Engineering Research Center of CBM Development & Utilization, China University of Geosciences, Beijing, China; Beijing Key Laboratory of Unconventional Natural Gas Geological Evaluation and Development Engineering, Beijing, China; [email protected]
8School of Energy Resources, China University of Geosciences (Beijing), Beijing, China; Coal Reservoir Laboratory of National Engineering Research Center of CBM Development & Utilization, China University of Geosciences, Beijing, China; Beijing Key Laboratory of Unconventional Natural Gas Geological Evaluation and Development Engineering, Beijing, China; [email protected]
ABSTRACT
The Junggar Basin is rich in low-rank coalbed gas resources. This paper uses the stable isotopes of gas and coproduced water to analyze the origin and distribution of coalbed gas in the Lower Jurassic Badaowan Formation in the Fukang area of southern Junggar Basin, China. In this work, it was found that microbial gas is mainly present at depths ≤800 m where the temperature and total dissolved solids were suitable for methanogen gas production. Thermogenic gas is primarily present at buried depths greater than 1000 m where the coal seam has a higher degree of thermal evolution, and a mixture of the two was present at buried depths of 800–1000 m. Thermogenic gas accounts for 40.1% to 41.7%. Microbial gas accounts for the remaining 58.3% to 59.9% and is generated mainly by CO2 reduction. A fraction of microbial gas is likely produced via acetate fermentation on the eastern and western sides. High gas contents are confined to permeable coal seams where microbial activity continues, that is, at depth of 600–1000 m. The extensive biological effects from Mesozoic to present day have resulted in the extremely heavy
Pay-Per-View Purchase Options
The article is available through a document delivery service. Explain these Purchase Options.
Watermarked PDF Document: $14 | |
Open PDF Document: $24 |
AAPG Member?
Please login with your Member username and password.
Members of AAPG receive access to the full AAPG Bulletin Archives as part of their membership. For more information, contact the AAPG Membership Department at [email protected].