N n-disubstituted amide cosurfactants in enhanced oil recovery processes
Patent
·
OSTI ID:5796029
A surfactant system useful for oil recovery consisting essentially of a NaCl brine, a hydrocarbon sulfonate surfactant, such as a petroleum sulfonate, and a cosurfactant such as a N,N-disubstituted amide. In another embodiment, a C/sub 1/ to C/sub 8/ alcohol is additionally present as a cosurfactant.
- Assignee:
- Phillips Petroleum Company
- Patent Number(s):
- US 4490263
- OSTI ID:
- 5796029
- Resource Relation:
- Patent File Date: Filed date 10 Dec 1982; Other Information: PAT-APPL-448665
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
02 PETROLEUM
DISPLACEMENT FLUIDS
CHEMICAL COMPOSITION
OIL WELLS
WATERFLOODING
ALCOHOLS
AMIDES
BRINES
ENHANCED RECOVERY
PETROLEUM SULFONATES
SODIUM CHLORIDES
SURFACTANTS
ALKALI METAL COMPOUNDS
CHLORIDES
CHLORINE COMPOUNDS
ESTERS
FLUID INJECTION
FLUIDS
HALIDES
HALOGEN COMPOUNDS
HYDROXY COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC SULFUR COMPOUNDS
RECOVERY
SODIUM COMPOUNDS
SULFONATES
SULFONIC ACID ESTERS
WELLS
020300* - Petroleum- Drilling & Production
DISPLACEMENT FLUIDS
CHEMICAL COMPOSITION
OIL WELLS
WATERFLOODING
ALCOHOLS
AMIDES
BRINES
ENHANCED RECOVERY
PETROLEUM SULFONATES
SODIUM CHLORIDES
SURFACTANTS
ALKALI METAL COMPOUNDS
CHLORIDES
CHLORINE COMPOUNDS
ESTERS
FLUID INJECTION
FLUIDS
HALIDES
HALOGEN COMPOUNDS
HYDROXY COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC SULFUR COMPOUNDS
RECOVERY
SODIUM COMPOUNDS
SULFONATES
SULFONIC ACID ESTERS
WELLS
020300* - Petroleum- Drilling & Production