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Title: Well drilling fluids and process for drilling wells

Patent ·
OSTI ID:6114085
;

A composition is described, comprised of (a) an aqueous base, (b) a clayey material suspended in the aqueous base, (c) a water-soluble sulfonated styrene-maleimide copolymer having a molecular weight of about 500 to about 15,000, and (d) a water-soluble copolymer having a molecular weight of about 500 to about 30,000 prepared from alkali metal salts of acrylic acid and methacrylic acid.

Assignee:
Pony Industries, Inc., New York, NY
Patent Number(s):
US 4812244
OSTI ID:
6114085
Resource Relation:
Patent File Date: Filed date 24 Sep 1987
Country of Publication:
United States
Language:
English

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Related Subjects

02 PETROLEUM
03 NATURAL GAS
DRILLING FLUIDS
CHEMICAL COMPOSITION
ACRYLIC ACID
ALKALI METAL COMPOUNDS
AQUEOUS SOLUTIONS
MALEIC ACID
NATURAL GAS WELLS
OIL WELLS
POLYMERS
ROCK DRILLING
SOLUBILITY
STYRENE
ALKYLATED AROMATICS
AROMATICS
CARBOXYLIC ACIDS
DICARBOXYLIC ACIDS
DISPERSIONS
DRILLING
FLUIDS
HYDROCARBONS
MIXTURES
MONOCARBOXYLIC ACIDS
ORGANIC ACIDS
ORGANIC COMPOUNDS
SOLUTIONS
WELLS
020300* - Petroleum- Drilling & Production
030300 - Natural Gas- Drilling
Production
& Processing