| 摘要 |
A method is disclosed for selectively sealing thief zones in a formation. First, a saline pre-flush water is injected into the formation. Then, at least one slug of a saline soution of heat-sensitive sealing fluid is injected into the formation, followed by injection of a saline push water. Electrical resistance heating of the formation is induced sufficient to cause the sealing fluid to undergo in-situ transformation to seal the thief zones.
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