Foamed gel for permeability reduction or mobility control in a s

Details Foamed gel for permeability reduction or mobility control in a s Foamed gel for permeability reduction or mobility control in a s

1996-03-08

1998-11-10

Lovering, Richard D.

Earth boring, well treating, and oil field chemistry

Well treating

Contains intended gaseous phase at entry into wellbore

507230, 507903, 166295, 166300, 166309, E21B 33138

Patent

active

058344063

ABSTRACT:
A process employing a foamed gel in a subterranean hydrocarbon-bearing formation to reduce the permeability of a treatment region therein or control the mobility of a drive fluid in the formation. The foamed gel is formed from a crosslinkable carboxylate-containing polymer, a crosslinking agent containing a reactive transition metal cation, a polyvinyl alcohol, an aqueous solvent, and an added gas.

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Sydansk, R.D., "Field Testing of a New Conformance-Improvement-Treatment Chromium(III) Gel Technology", SPE/DOE 17383 Enhanced Oil Recovery Symposium: Society of Petroleum Engineers, Apr. 20, 1988, Tulsa, OK.

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