Organically crosslinked polyvinyl alcohol copolymeric gels for use under harsh reservoir conditions
作者： Paul Shu , Dennis H. Hoskin
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摘要: A gel-forming composition capable of plugging highly permeable zones in a subterranean formation. The comprises water, water-dispersible polyvinyl alcohol copolymer and crosslinking agent which is mixture an aldehyde phenolic component amount effective to cause gelation the aqueous solution copolymer. resultant gel exceptionally thermally stable and, therefore, can be used as profile control all enhanced oil recovery operations, including steam flooding. Also provided process for recovering from oil-bearing
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