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Water-rock interaction and methanogenesis in formation water in the southeast Huaibei coalfield, China
Qingguang Li;  Yiwen Ju;  Weiqi Lu;  Guochang Wang;  Bhupati Neupane;  Yue Sun
2016
发表期刊Marine and Petroleum Geology
卷号77页码:435-447
摘要

The hydrogeochemical characteristics of aquifers in coal-bearing strata can provide an important foundation for understanding the evolution of the aquifers and recognizing the formation process and occurrence of biogenic gas. By analyzing the hydrogeochemical characteristics of water produced from the Cenozoic, the limestone, and the coal strata aquifers and the coalbed gas wells, this study focused on water-rock interactions and methanogenesis in the formation water of the Suzhou mining area, Huaibei coalfield, China. Tectonically, this is one of the most complex coalfields in China. The dissolution of evaporitessilicates, and carbonates controlled the chemical composition of the formation water. The Cenozoic aquifers have a relatively stable water quality type and balanced ionic composition, but more complex water-rock interactions occur in the coal strata and the limestone aquifers. Extensive methanogenic activity and methanogenesis could be recognized by the meteoric water recharge, positive δ13C signatures for dissolved inorganic carbon(DIC; 15.4‰–26.2‰), lower sulfate concentrations (<2 mM), and higher levels of dissolved methane and DIC. The generation and enrichment of secondary biogenic gas in the coal seams was after the microbes’ inoculation along with the freshwater infilling the fracture network.

关键词Water-rock Interactions end Member Discrimination methanogenesis microbial Gas isotope Geochemistry
收录类别SCI
语种英语
文献类型期刊论文
条目标识符http://ir.gyig.ac.cn/handle/42920512-1/9608
专题环境地球化学国家重点实验室
作者单位1.Environmental Science and Engineering Postdoctoral Research Center, School of Earth and Environment, Anhui University of Science and Technology, 232001, Huainan, China
2.Key Lab of Computational Geodynamics of Chinese Academy of Sciences, College of Earth Science, University of Chinese Academy of Sciences, 100049, Beijing, China
3.State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, 550002, Guiyang, China
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GB/T 7714
Qingguang Li;Yiwen Ju;Weiqi Lu;Guochang Wang;Bhupati Neupane;Yue Sun. Water-rock interaction and methanogenesis in formation water in the southeast Huaibei coalfield, China[J]. Marine and Petroleum Geology,2016,77:435-447.
APA Qingguang Li;Yiwen Ju;Weiqi Lu;Guochang Wang;Bhupati Neupane;Yue Sun.(2016).Water-rock interaction and methanogenesis in formation water in the southeast Huaibei coalfield, China.Marine and Petroleum Geology,77,435-447.
MLA Qingguang Li;Yiwen Ju;Weiqi Lu;Guochang Wang;Bhupati Neupane;Yue Sun."Water-rock interaction and methanogenesis in formation water in the southeast Huaibei coalfield, China".Marine and Petroleum Geology 77(2016):435-447.
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