Fluid composition for drilling

Details Fluid composition for drilling Fluid composition for drilling

1984-04-03

1985-05-28

Padgett, Ben R.

Compositions

Leather or fur treating

252 85A, C09K 702

Patent

active

045199230

ABSTRACT:
A fluid composition suitable for use in drilling containing a sulfoethylcellulose alkali metal salt of which a degree of substitution is from 0.5 to 2.5 and the viscosity of a 1% by weight aqueous solution is 5 to 5,000 cP. The sulfoethylcellulose alkali metal salt has excellent water loss reducing ability and viscosity building ability and is soluble and stable in the presence of any monovalent and polyvalent salts at a wide pH range, and is applicable as a high molecular additive to a drilling mud and a completion fluid.

REFERENCES:
patent: 4425241 (1983-01-01), Swanson
patent: 4427556 (1984-01-01), House et al.

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