Oil recovery process using a delayed polymer gel

Details Oil recovery process using a delayed polymer gel Oil recovery process using a delayed polymer gel

1986-03-14

1987-11-17

Suchfield, George A.

Wells

Processes

Cementing, plugging or consolidating

166300, 523130, E21B 33138

Patent

active

047067543

ABSTRACT:
A process for reducing the permeability of a high permeability region in a subterranean hydrocarbon-bearing formation by preparing an aqueous gelation solution at the surface comprised of a water-soluble polymer, a metal carboxylate crosslinking agent and a carboxylic acid delaying agent. The delaying agent substantially delays gelation of the solution until it is injected and in place in the desired treatment region.

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Middleman, S., The Flow of High Polymers, Interscience Publishers, N.Y., 1968, pp. 68-70.

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