Method for treating a well bore

Details Method for treating a well bore Method for treating a well bore

1988-11-23

1990-08-07

Thexton, Matthew A.

Compositions

Leather or fur treating

252 8554, 2523153, 1061971, E21B 4326, E21B 3313, E21B 43267

Patent

active

049466046

ABSTRACT:
The present invention relates to a method for treating a well bore and the surrounding subterranean formation. A non-reducing sugar is admixed with a polysaccharide polymer and crosslinking agent in aqueous liquids to subsequently initiate viscosity reduction of the crosslinked polymer. The non-reducing sugar provides a means for obtaining time-controlled viscosity reduction at formation temperatures.

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patent: 4553601 (1985-11-01), Almond et al.
patent: 4649999 (1987-03-01), Sandy et al.

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