E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 33/138 (2006.01) C09K 8/512 (2006.01) C09K 17/48 (2006.01)
Patent
CA 2051257
31,258-00 TITLE OF THE INVENTION CROSSLINKING WATER-SOLUBLE POLYMERS WITH IRON TO FORM GELS FOR USE IN SUBTERRANEAN PROFILE MODIFICATION Abstract of the Invention A process of profile modifying permeable soils with an environmentally safe composition of a non-toxic water-soluble polymer, a redox couple of a water-soluble ferrous salt and a non-toxic, oxidizing agent which are mixed in water and pumped into a subterranean formation wherein ferrous ion is oxidized to ferric ion to gel the polymer making the subterranean formation impermeable.
Miller Edward Elliott
Strydom Peter John
American Cyanamid Company
Smart & Biggar
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