摘要
作为常规油气重要接替补充的非常规天然气,煤层气越来越受到世人的关注。如何提高煤层气采收率是摆在煤层气开发工程师面前迫切需要解决的技术难题。通过向煤层中注入CO2,既可以提高煤层气采收率又能间接地实现CO2减排,即提高煤层气采收率的CO2埋存技术(CO2-ECBM)。该项技术已在世界各地迅速发展,并取得一些实质性进展。文章介绍了提高煤层气采收率和CO2埋存的必要性,分析了CO2-ECBM技术的作用原理、应用条件,列举了国内外CO2-ECBM技术的实践,最后探讨了中国CO2-ECBM的前景。发现中国煤层埋存CO2以提高煤层气采收率的潜力巨大,但相关理论研究和关联技术还相当滞后,有待进一步发展。
As an important unconventional natural gas which is regarded to replace and supply the conventional natural gas,coalbed methane（CBM） has received more and more attention from the public.How to enhance CBM recovery is a technical difficult problem lying before CBM development engineers and being urgently solved.Injecting CO2 to the target coal seam,which can enhance CBM recovery and reduce CO2 emissions indirectly,that is CO2 sequestration enhancing CBM recovery（CO2-ECBM）,has developed at a surprising speed around the world and also made substantial progress.Necessity of enhancing CBM recovery and of sequestrating CO2 were introduced,principle and application conditions of CO2-ECBM technology were analyzed,some practice of the technology both at home and abroad were enumerated,and prospect of the technology in China was discussed as well.It was found that China has great potential in sequestrating CO2 into the target coal seam to enhance CBM recovery,but the theoretical research and technology correlated with this are still lagging behind and need further development.
出处
《环境科学与技术》
CAS
CSCD
北大核心
2011年第5期95-99,共5页
Environmental Science & Technology
基金
国家科技重大专项(2008ZX05034-001)
国家自然科学基金重点项目(40730422)
关键词
煤层气
注CO2
原理
应用条件
实践
前景
coalbed methane
injecting CO2
principal
application condition
practice
prospect
