Displacement desorption test of coalbed methane and its mechanism exploring |
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| Affiliation: | ZHANG Suian, HUO Yongzhong, YE Jianping, TANG Shuheng & MA Dongmin China University of Petroleum (Beijing), Beijing 102249, China; China Unite Coalbed Methane Corporation, Beijing 100011, China; China University of Geology, Beijing 100083, China; Xi'an University of Science and Technolosv. Xi'an 710054. China |
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| Abstract: | Through the test of CH4 displaced by CO2 using the coal sample as the adsorbent, this paper has found the coalbed methane (CBM) displacement desorption phenomenon under the natural conditions and CBM mining conditions. With the help of the adsorption theory of the modern physical chemistry and interfacial chemistry, the CBM competitive adsorption and displacement desorption mechanism are intensively discussed, and a new path for studying the CBM desorption mechanism in the CBM exploitation process is explored. |
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| Keywords: | coalbed methane displacement desorption simulation test theoretical study. |
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