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Mechanism of ultralow interfacial tensions in dilute surfactant-oil-brine systems

Conference ·
OSTI ID:5771382
; ;
Based on studies with well-characterized SHBS, AOT and SDS surfactants we can explain deep tension-concentration minima in dilute petroleum sulfonates. Ultralow tensions arise not from molecular adsorption at the oil-water interface, but from the surfactant forming a third, microstructured phase at the oil-water interfacial region.
OSTI ID:
5771382
Report Number(s):
CONF-841121-
Country of Publication:
United States
Language:
English

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Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
BRINES
COLLOIDS
CRYSTAL STRUCTURE
DILUTION
DISPERSIONS
EMULSIONS
ENHANCED RECOVERY
ESTERS
FLUID INJECTION
HYDROGEN COMPOUNDS
INTERFACES
MICROEMULSION FLOODING
MICROEMULSIONS
MICROSTRUCTURE
MISCIBLE-PHASE DISPLACEMENT
OIL WELLS
OILS
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OTHER ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PETROLEUM SULFONATES
QUANTITY RATIO
RECOVERY
SULFONATES
SULFONIC ACID ESTERS
SURFACE PROPERTIES
SURFACE TENSION
SURFACTANTS
WATER
WELLS