Stabilization of modified cellulose in brines at high temperatur

Details Stabilization of modified cellulose in brines at high temperatur Stabilization of modified cellulose in brines at high temperatur

1980-12-29

1982-11-16

Guynn, Herbert B.

Compositions

Leather or fur treating

252397, 536 88, E21B 4300

Patent

active

043593925

ABSTRACT:
Novel processes are provided for the stabilization of modified celluloses in brine solutions useful for well completion and workover. Copper species are added to such fluids in an amount effective substantially to decrease the rate of decomposition of such cellulose at temperatures above about 225.degree. F.

REFERENCES:
patent: 1813664 (1931-07-01), Christiansen et al.
patent: 3243000 (1966-03-01), Patton et al.
patent: 3290249 (1966-12-01), Wilson
patent: 3852201 (1974-12-01), Jackson
patent: 4046197 (1977-09-01), Gruesbeck et al.
patent: 4090968 (1978-05-01), Jackson et al.
Rogers, Composition and Properties of Oil Well Drilling Fluids, Third Edition, 1963, pp. 406-414, 416, 417.

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