Compositions and processes for treating hydrocarbon-bearing form

Details Compositions and processes for treating hydrocarbon-bearing form Compositions and processes for treating hydrocarbon-bearing form

1996-02-12

1998-08-04

Kelly, C. H.

Earth boring, well treating, and oil field chemistry

Well treating

Contains organic component

507271, 507267, 507260, 166293, 166294, 166295, C09K 700, E21B 4326

Patent

active

057893500

ABSTRACT:
A gelling composition comprises a multivalent metal compound-crosslinkable polymer such as a carboxylate-containing polymer, a multivalent metal compound such as a zirconium compound, a liquid, and a pH-lowering agent such as carbon dioxide wherein the composition is prepared by combining the polymer and multivalent metal compound to form a mixture and, thereafter, introducing carbon dioxide to the mixture. A process for treating a subterranean formation can comprise the steps of: (1) combining a polymer with a multivalent compound to form a mixture; (2) introducing the another mixture into a subterranean formation; and (3) introducing carbon dioxide into the mixture.

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