发明名称 |
Method of using polymerized lignosulfonates for mobility control |
摘要 |
An improved method for mobility control application in viscous oil reservoirs including (a) heating a lignosulfonate solution, prior to injection into an oil bearing formation, for a period of time sufficient to produce a more viscous lignosulfonate solution (e.g., 8% sodium lignosulfonate held at 375 DEG F. for 50 hours yielding a 86 cp fluid @ 84 sec-1 measured at room temperature), (b) cooling the resulting heat treated lignosulfonate fluid to a reservoir condition and (c) injecting this fluid into the formation. Fluids produced in this manner are useful as mobility buffers during a waterflood or a micellar flood process.
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申请公布号 |
US4252194(A) |
申请公布日期 |
1981.02.24 |
申请号 |
US19790070945 |
申请日期 |
1979.08.30 |
申请人 |
STANDARD OIL COMPANY (INDIANA) |
发明人 |
FELBER, BETTY J.;DAUBEN, DWIGHT L. |
分类号 |
C09K8/90;E21B43/24 |
主分类号 |
C09K8/90 |
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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