Foamed gel completion, workover, and kill fluid

Details Foamed gel completion, workover, and kill fluid Foamed gel completion, workover, and kill fluid

1995-12-07

1997-11-04

Schoeppel, Roger J.

Wells

Processes

Cementing, plugging or consolidating

166309, E21B 3313

Patent

active

056829515

ABSTRACT:
A process employing a foamed gel in a wellbore as a completion, workover, or kill fluid. The foamed gel is formed from an aqueous solvent, a water-soluble carboxylate-containing polymer crosslinked by a crosslinking agent containing a reactive transition metal cation, a surfactant, and an added gas. The foamed gel is placed in the wellbore, where it substantially prevents the flow of formation fluid into or out of the wellbore. The completion, workover, or kill operation is then performed. Alternatively, the foamed gel may be combined with another completion, workover, or kill fluid after commencing a wellbore operation.

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