摘要
注入CO2提高天然气采收率(CSEGR)技术可以在将CO2封存在地层中的同时,通过保持地层压力和驱替作用提高天然气的采收率。对该技术实施过程中可能存在的CO2和CH4混合和注入井周围的焦耳-汤姆逊制冷效应进行了模拟研究,研究表明,由于CO2和CH4物性的差异,其混合可以被抑制,注入井周围的制冷效果并不会对提高采收率产生太大影响。随着CSEGR技术研究的发展,该技术必然会应用于实际气藏,并取得良好的经济效果。
During geological storage of CO2,the technology of Carbon Sequestration with Enhanced Gas Recovery（CSEGR） can enhance the natural gas recovery through maintaining reservoir pressure and the displacement effect.The CO2 and CH4 mixing and the Joule-Thomson effect around injection wells in the technical implementation process have been studied by the simulation method.The studies show that the mixing of CO2 and CH4 can be restrained,because the physical properties difference of CO2 and CH4;the cooling effect around the injection well will not have much impact on EGR.With CSEGR technology development,the technology will be applied in practical field,and get better economic effect.
出处
《内蒙古石油化工》
CAS
2011年第17期107-110,共4页
Inner Mongolia Petrochemical Industry
