Influence of Coal-Seam Water on Coalbed Methane Production: A Review

被引:0
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作者
Jinxuan Han
Zhaozhong Yang
Xiaogang Li
Jian Zhang
机构
[1] Southwest Petroleum University,State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation
[2] China United Coalbed Methane Corporation,undefined
[3] Ltd.,undefined
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摘要
We present a comprehensive overview of the influence of water on coalbed methane production. The influence of water on coalbed methane production is associated with adsorption of water in pores, capillary condensation, micropore filling, adsorption hysteresis and its effect on methane diffusivity, coal swelling due to adsorption of water and a corresponding change in methane permeability, pore saturation by water (water imbibition into pores), and gas–water two-phase flow in the cleats. We consider methods for reducing the negative impact of water on coalbed methane production: carbon dioxide injection and microwave technology. We identify promising areas of study.
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页码:207 / 221
页数:14
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