发明名称 Surfactant method for improved oil recovery from subterranean reservoirs
摘要 A method to enhance oil recovery from a subterranean reservoir, the reservoir being accessible via a production well. The method includes injecting a surfactant solution that includes surfactants into the production well. The surfactant solution selected to increase an oil-to-water ratio of oil recovery from a porous matrix portion of the reservoir. The method also includes injecting a well-servicing volumetric solution into the production well to perform a second well treatment process. The second well treatment process is selected from the group consisting of a scale inhibition squeeze process, a well acidizing process, a chemical process to reduce water production rate, an acid fracturing process, and a hydraulic fracturing process. In the method, the surfactant solution and the second well treatment solution are injected into the production well within less than about six months of one another.
申请公布号 US8146666(B2) 申请公布日期 2012.04.03
申请号 US20090460767 申请日期 2009.07.24
申请人 TANG HONGXIN;CHEMEOR, INC. 发明人 TANG HONGXIN
分类号 E21B43/22;E21B43/26;E21B43/27 主分类号 E21B43/22
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