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Tang Xiaoyong,Pu Liming
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Issue:ISSN 1006-5539
          CN 51-1183/TE

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    Numerical Simulation Study on Carbon Dioxide Injection to Enhance CBM Recovery
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    Key Words：Carbon dioxide； CBM； Increasing CBM recovery； Numerical simulation
    Abstract：As global greenhouse effect becomes more and more fierce， emission of carbon dioxide has caused wide attention in the world. In CBM development， utilization of carbon dioxide for CBM recovery increase has become a research focus.?摇Owing to low productivity in CBM development， applied are physical simulation and numerical simulation to conduct isothermal adsorption and desorption experiment of replacement of CBM with carbon dioxide and concentration determination research in the replacement process， and applied is eclipse software to conduct numerical simulation study on CBM in Jincheng region in Shanxi Province. Study results show that replacement of coalbed methane with carbon dioxide can increase CBM output and recovery and make output remain stable and recovery reach up to 94% with less water production rate， which can also effectively reduce emission of carbon dioxide and alleviate greenhouse effect.
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