Degradation of a viscous microbial polysaccharide formulation

Details Degradation of a viscous microbial polysaccharide formulation Degradation of a viscous microbial polysaccharide formulation

1987-04-10

1988-07-05

Guynn, Herbert B.

Wells

Processes

Using microorganisms

252 8551, 252 8552, E21B 4300

Patent

active

047548096

ABSTRACT:
A process for the degradation with acid of a viscous microbial polysaccharide formulation which is applied in oil and/or gas reservoir operations, wherein the polysaccharide formulation contains an amount of a salt or a salt mixture which is sufficient to adjust the transition temperature of the polysaccharide such that it is close to the reservoir operating temperature. A process for the preparation of an acid degradable polysaccharide formulation and a polysaccharide formulation.

REFERENCES:
patent: 3236305 (1966-02-01), Parks
patent: 3633689 (1972-01-01), Christman
patent: 3675717 (1972-07-01), Goins et al.
patent: 3986964 (1976-10-01), Smithey
patent: 4046197 (1977-09-01), Gruesbeck et al.
patent: 4350601 (1982-09-01), Mosier et al.
Ash et al., SPE 12085, Society of Petroleum Engineers of AIME, 58th Annual Technical Conference and Exhibition, San Francisco, Calif., Oct. 5-8, 1983.

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