Acceleration of gelation of water soluble polymers

Details Acceleration of gelation of water soluble polymers Acceleration of gelation of water soluble polymers

1992-06-29

1995-09-05

Michl, Paul R.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

523130, 524593, 524596, C08K 328

Patent

active

054479860

ABSTRACT:
A gellable composition for oil field operations and a process for accelerating the gelation of the gellable composition for shut-in well are disclosed. The composition comprises: (1) an ammonium ion donor; (2) a water soluble acrylamide-containing polymer; (3) a first crosslinking component selected from the group consisting of aldehydes and aldehyde-generating compounds; (4) a second crosslinking component selected from the group consisting of an aromatic compound and an alcohol where the aromatic compound is selected from the group consisting of phenols and acids; and (4) water.

REFERENCES:
patent: 4440228 (1984-04-01), Swanson
patent: 4632185 (1986-12-01), Moradi-Araghi et al.
patent: 4785028 (1988-11-01), Hoskin et al.
patent: 5003006 (1991-03-01), Chu et al.
patent: 5071890 (1991-12-01), Shu et al.
The Chemistry of Phenolic Resins (R. W. Martin, 1955), pp. 260-262.
Sandler and Karo, Polymer Syntheses, vol. II, p. 9, 1977.

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