沁水盆地南部注二氧化碳提高煤层气采收率微型先导性试验研究
Shiyou Xuebao/Acta Petrolei Sinica（2007）
Abstract
在沁水盆地南部TL-003井进行了单井注入CO2提高煤层气采收率试验.采用间歇式注入方式,共向3号煤层注入192.8 t液态CO2.生产和储层模拟评价结果表明,大部分CO2被煤层吸附,能显著提高单井产量和采收率.多井试验模拟显示,在沁南无烟煤煤层中注入CO2,能显著地提高煤层气采收率,同时实现了埋藏CO2的目标.
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Key words
Carbon dioxide,Coalbed methane,Enhanced recovery,Injection mode,Pilot test,Qinshui Basin
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