发明申请
- 专利标题： METHOD FOR ENHANCED RECOVERY OF OIL FROM OIL RESERVOIRS
- 专利标题（中）： 从油藏中提高油的回收方法
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申请号： US12240234申请日： 2008-09-29
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公开(公告)号： US20100078168A1公开(公告)日： 2010-04-01
- 发明人: Scott Christopher Jackson , Peter A. Morken
- 申请人： Scott Christopher Jackson , Peter A. Morken
- 申请人地址： US DE Wilmington
- 专利权人： E. I. duPont de Nemours and Company
- 当前专利权人： E. I. duPont de Nemours and Company
- 当前专利权人地址： US DE Wilmington
- 主分类号： E21B43/22
- IPC分类号： E21B43/22 ; E21B43/16
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
- US07913759B2 Method for enhanced recovery of oil from oil reservoirs 公开/授权日：2011-03-29
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