发明名称 |
Method of retarding degradation of surfactants employed in waterflooding |
摘要 |
A process for the recovery of oil from subterranean oil reservoirs by waterflooding employing ether-linked sulfonate surfactants in which oxidative degradation of the surfactant is retarded through the establishment of an anaerobic condition in the surfactant solution or through the use of oxidation inhibitors. The anaerobic condition may be provided by mechanical means such as scrubbing the injected water with an inert gas in order to remove oxygen or by employing produced well water which is handled under a closed system to exclude oxygen. A preferred class of oxidation inhibitors are sterically hindered phenolic compounds which function as free radical chain inhibitors.
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申请公布号 |
US4331543(A) |
申请公布日期 |
1982.05.25 |
申请号 |
US19780951899 |
申请日期 |
1978.10.16 |
申请人 |
MOBIL OIL CORPORATION |
发明人 |
WILSON, PEGGY M.;PAO, JULIE |
分类号 |
C09K8/584;(IPC1-7):E21B43/27 |
主分类号 |
C09K8/584 |
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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