发明名称 |
PLUGGING HIGH PERMEABILITY ZONES OF RESERVOIRS HAVING HETEROGENEOUS PERMEABILITY |
摘要 |
<p>"" A method of forming a mixed plug in the more permeable zones of a subterranean reservoir of nonuniform permeability in which there is injected into the reservoir aqueous solutions of: a polymer, a material that reacts with the polymer to form a time-delayed polymer-containing plug, an alkali metal silicate and a material that reacts with the silicate to form a time-delayed silicate-containing plug. The injected solutions are either admixed at the surface prior to injection or are simultaneously injected so that a mixed polymer-silicate plug is formed in the reservoir.</p> |
申请公布号 |
CA1079507(A) |
申请公布日期 |
1980.06.17 |
申请号 |
CA19770289560 |
申请日期 |
1977.10.26 |
申请人 |
UNION OIL COMPANY OF CALIFORNIA |
发明人 |
SANDIFORD, BURTON B. |
分类号 |
C09K8/512;(IPC1-7):09K7/02 |
主分类号 |
C09K8/512 |
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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