Ezperimental Study of Different Gas Drive Displacement Efficiency in Porous Medium

摘要：

With laboratory experimental methods,most experimental studies are based on singledisplacing media,but few researchers studied the difference of difierent gas drive．Based on themechanism survey of gas drive,with three kindsgas and drilling core of Jilin oilfieid,the experimentstudied the drive law in porous medium．and analysis the mechanism. The result shows that,as the gaspermeabilitys adding,the displacement efficiency increasing. In the same displace condition,carbondioxide drive reached the best result．next is compressed air,nitrogen gas is the lowest. The displaceresult of the same core within difrerent pressure condition indicated that,carbon dioxide drivesdisplacement effciency enhanced as the inlet pressure added. Its correlated with the accession of carbondioxides resolution．which makes the crude oils volume swell and viscosity reduction．

关键词： porous medium carbon diozide compressed air nitrogen gas displacement efficiency ezperiment

作者: ZHOU Ti-yao CHENG Lin-song ZHANG Jian

作者单位: MOE Key Laboratory of Petroleum Engineering, Petroleum University of China, Beijing China 102249

会议类型: 国际会议

会议名称: 2009 International Forum on Porous Flow and Applications(第十届全国渗流力学学术会议)

会议地点: 武汉

会议语种:英文

页码: 10-14

在线出版日期: 2009-04-26（万方平台首次上网日期，不代表论文的发表时间）