文13西块富气混相驱提高采收率室内试验研究  

Laboratory Experiment for Enhanced Oil Recovery by Miscible Displacement of Enriched Gas in West Block of Wen 13

作　　者：徐先华[1] 李卫兵[1] 周志龙[1] 何飞[1] 

机构地区：[1]中原油田分公司勘探开发科学研究院,河南濮阳457001

出　　处：《江汉石油学院学报》2004年第2期122-123,共2页Journal of Jianghan Petroleum Institute

摘　　要：文 13西块富气最小混相富化量以注入溶剂的拟临界温度表示为 2 35 8K ,长岩心驱替试验中水 /富气交替注入比水驱采收率提高 34 9个百分点 ,数值模拟研究结果为富气驱比同期水驱提高采收率 11 33～16 95个百分点。室内试验研究表明 ,该区块通过注天然气驱开发采收率有较大幅度的提高 。The minimum miscible quantity of enriched gas in West Block of Wen 13 is presented as 235.8k according to the quasi-critical temperature of injected solvent. The oil recovery is raised 34.9% more in water/enriched gas alternating displacement than that of waterflooding in long core displacement test. The result of numerical simulation shows that the oil recovery is raised 11.33% to 16.95% more in enriched gas displacement than that of waterflooding at the same period. Laboratory experiment shows that oil recovery is improved greatly in the block by gas displacement, by which preparation is made for enhanced oil recovery by miscible displacement of enriched gas in Zhongyuan Oilfield.

关 键 词：富气 混相驱 采收率 室内试验 文东油田 

分 类 号：TE357.46[石油与天然气工程—油气田开发工程]