发明授权
- 专利标题： Method for enhanced recovery of oil from oil reservoirs
- 专利标题（中）： 增加油藏油回收率的方法
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申请号： US13042711申请日： 2011-03-08
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公开(公告)号： US08193126B2公开(公告)日： 2012-06-05
- 发明人: Scott Christopher Jackson , Peter A. Morken , George David Robinson , Elliott Echt
- 申请人： Scott Christopher Jackson , Peter A. Morken , George David Robinson , Elliott Echt
- 申请人地址： US DE Wilmington
- 专利权人： E.I. du Pont de Nemours and Company
- 当前专利权人： E.I. du Pont de Nemours and Company
- 当前专利权人地址： US DE Wilmington
- 代理商 Roger W. Herrell, Jr., Esquire
- 主分类号： C09K8/588
- IPC分类号： C09K8/588 ; E21B43/16 ; C08F18/08
摘要：
The present invention provides a method for recovering oil from a subterranean reservoir using waterflooding, wherein the flooding fluid used in the waterflooding process comprises water and one or more ionic polyvinyl alcohol copolymers. The use of one or more ionic polyvinyl alcohol copolymers is expected to increase the recovery of oil by improving both the oil/water mobility ratio and the sweep efficiency in reservoirs with a high degree of heterogeneity.
公开/授权文献
- US20110160102A1 METHOD FOR ENHANCED RECOVERY OF OIL FROM OIL RESERVOIRS 公开/授权日：2011-06-30
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