Zwiterionic 2-alkyl imidazolines as emulsifying agents for oil based drilling fluids
Patent
·
OSTI ID:5865908
Improved emulsifying agents for oil based drilling fluids, compared to imidazoline materials presently being used in oil based drilling fluids, that not only are excellent emulsifiers for oil based drilling fluids, but also are effective wetting agents and fluid loss control agents in invert (water-in-oil) systems, are obtained from imidazolines prepared by reacting long chain fatty acids with polyalkylene polyamines to form a 2-alkyl imidazoline, and then reacting the 2-alkyl imidazoline with an activated dicarboxylic acid to form the desired 2-alkylimidazoline derivative.
- Assignee:
- Dresser Industries, Inc.
- Patent Number(s):
- US 4544756
- OSTI ID:
- 5865908
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030300 -- Natural Gas-- Drilling
Production
& Processing
ADDITIVES
ALKYL RADICALS
AMINES
AZOLES
CARBOXYLIC ACIDS
CHEMICAL COMPOSITION
CHEMICAL PREPARATION
COLLOIDS
DISPERSIONS
DRILLING FLUIDS
EMULSIFICATION
EMULSIFIERS
EMULSIONS
FLUIDS
HETEROCYCLIC COMPOUNDS
IMIDAZOLES
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC POLYMERS
POLYMERS
RADICALS
SURFACTANTS
SYNTHESIS
WETTING AGENTS
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030300 -- Natural Gas-- Drilling
Production
& Processing
ADDITIVES
ALKYL RADICALS
AMINES
AZOLES
CARBOXYLIC ACIDS
CHEMICAL COMPOSITION
CHEMICAL PREPARATION
COLLOIDS
DISPERSIONS
DRILLING FLUIDS
EMULSIFICATION
EMULSIFIERS
EMULSIONS
FLUIDS
HETEROCYCLIC COMPOUNDS
IMIDAZOLES
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC POLYMERS
POLYMERS
RADICALS
SURFACTANTS
SYNTHESIS
WETTING AGENTS