Wells – Processes – Cementing – plugging or consolidating
Patent
1986-12-09
1988-02-09
Suchfield, George A.
Wells
Processes
Cementing, plugging or consolidating
166270, 166300, 166308, 252 8551, 523130, E21B 33138, E21B 4326
Patent
active
047236051
ABSTRACT:
A process for accelerating the gelation rate of a carboxylate-containing polymer used in oil recovery applications. A gel is prepared by mixing a single aqueous gelation solution at the surface made up of the polymer and a crosslinking agent containing a chromic carboxylate complex and a simple mineral acid. The concentration of the simple mineral acid is selected at a level which achieves the desired rate of gelation for a given application.
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Brown Rodney F.
Hummel Jack L.
Marathon Oil Company
Suchfield George A.
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