Foamed gel employed as a drilling fluid, a lost circulation flui

Details Foamed gel employed as a drilling fluid, a lost circulation flui Foamed gel employed as a drilling fluid, a lost circulation flui

1994-11-08

1996-03-05

Suchfield, George A.

Wells

Processes

Cementing, plugging or consolidating

166309, 175 69, 175 72, 507102, 507120, 507903, E21B 2100, E21B 33138

Patent

active

054958911

ABSTRACT:
A process employing a foamed gel in a wellbore as a drilling fluid, lost circulation fluid, or combined drilling/lost circulation fluid during the wellbore drilling operation. The foamed gel is formed from a crosslinkable carboxylate-containing polymer, a crosslinking agent containing a reactive transition metal cation, a surfactant, an aqueous solvent, and an added gas.

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Ennis, B. K., "Case History of Restimulations in Western Oklahoma", Production Operations Symp. Mar. 12-14, 1989. SPE 18861.

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