Foam for improving sweep efficiency in subterranean oil-bearing

Details Foam for improving sweep efficiency in subterranean oil-bearing Foam for improving sweep efficiency in subterranean oil-bearing

1992-02-21

1998-07-14

Geist, Gary

Earth boring, well treating, and oil field chemistry

Well treating

Contains intended gaseous phase at entry into wellbore

507936, 507903, 507225, 523130, 252307, C08J 906

Patent

active

057803951

ABSTRACT:
A foam is provided having utility for improving sweep efficiency in subterranean oil-bearing formations and having specific utility for conformance improvement treatments and mobility control in such formations. The foam is a gel medium having a gas dispersed therein. The gel medium is made up of a crosslinkable polymer, a crosslinking agent, a surfactant and a liquid solvent.

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