发明名称 |
Polymer microemulsion complexes and their use for the enhanced recovery of oil. |
摘要 |
<p>A polymer-microemulsion complex useful for the enhanced recovery of crude oil is disclosed. The polymer is polyethylene oxide of polyvinyl pyrrolidone and interacts with the surfactant of the microemulsion to form a physical association. The resulting complex is characterized by the complexation energy of at least 2 Kcal/mole. The polymer microemulsion complexes are stable at high salinity, reduce adsorption and retention by the formation, lower interfacial tension, achieve retentions as low as 0.1 mg surfactant/gm sand at high salinity and provide for early banking, as well as high recovery of oil. Enhanced oil recovery fluids using the polymer microemulsion complexes exhibit similar properties.</p> |
申请公布号 |
EP0037699(A2) |
申请公布日期 |
1981.10.14 |
申请号 |
EP19810301395 |
申请日期 |
1981.03.31 |
申请人 |
EXXON RESEARCH AND ENGINEERING COMPANY |
发明人 |
CANTER, NATHAN HARVEY;ROBBINS, MAX LEO;BAKER, EDWARD GEORGE |
分类号 |
B01F17/00;C08J3/09;C09K8/588;(IPC1-7):21B43/22;08J3/08 |
主分类号 |
B01F17/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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