Plugging a tubing/casing annulus in a wellbore with a polymer ge

Details Plugging a tubing/casing annulus in a wellbore with a polymer ge Plugging a tubing/casing annulus in a wellbore with a polymer ge

1986-12-22

1988-03-15

Suchfield, George A.

Wells

Processes

Cementing, plugging or consolidating

166300, E21B 3313

Patent

active

047306742

ABSTRACT:
A tubing/casing annulus in a wellbore penetrating a subterranean hydrocarbon-bearing formation is plugged using a gel comprising a high molecular weight, water-soluble carboxylate-containing polymer and a chromic carboxylate complex crosslinking agent. The gel components are combined at the surface and injected into the annulus to form a continuous single-phase gel therein.

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