发明授权
- 专利标题: Enhanced oil recovery method using associative polymers
- 专利标题(中): 使用缔合聚合物的增强采油方法
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申请号: US13000448申请日: 2009-06-10
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公开(公告)号: US08794327B2公开(公告)日: 2014-08-05
- 发明人: David Rousseau , René Tabary
- 申请人: David Rousseau , René Tabary
- 申请人地址: FR Rueil-Malmaison Cedex
- 专利权人: IFP Energies Nouvelles
- 当前专利权人: IFP Energies Nouvelles
- 当前专利权人地址: FR Rueil-Malmaison Cedex
- 代理机构: Antonelli, Terry, Stout & Kraus, LLP.
- 优先权: FR0803534 20080624
- 国际申请: PCT/FR2009/000690 WO 20090610
- 国际公布: WO2010/007222 WO 20100121
- 主分类号: E21B43/27
- IPC分类号: E21B43/27 ; E21B43/26
摘要:
An enhanced oil recovery method using injection of aqueous polymer solutions into the reservoir rock, includes the stages of: injecting a first aqueous solution of non-associative hydrophilic polymers into the reservoir in a predetermined proportion so that they adsorb on the reservoir rock; and then injecting a second aqueous solution of associative polymers into the reservoir for oil recovery, with limited adsorption considering the adsorption of the non-associative polymers of the first solution.
公开/授权文献
- US20110180255A1 ENHANCED OIL RECOVERY METHOD USING ASSOCIATIVE POLYMERS. 公开/授权日:2011-07-28
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