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Compositional effects on the adsorption of surfactant from aqueous phases in equilibrium with a middle phase microemulsion

Journal Article · · Soc. Pet. Eng. AIME, Pap.; (United States)
DOI:https://doi.org/10.2118/11212-MS· OSTI ID:5467276
; ; ;
Adsorption onto nonporous alumina from an excess aqueous phase in equilibrium with an optimum middle phase microemulsion and the corresponding solubilization have been measured as a function of isopentanol concentration, sodium chloride concentration, and alkane molecular weight for 4-dodecyl benzene sulfonate and 4-tridecyl benzene sulfonate. The concentration of isopentanol was adjusted so that each system was optimal. A multilinear regression analysis and a designed set of experiments were used to construct contours in the optimal plane--coordinate axes represented by the logarithm of salinity and hydrocarbon alkane carbon number (ACN). These contour plots showed that at a constant ACN, the solubilization parameter exhibits a maximum and adsorption a minimum when the electrolyte concentration is increased. Two different surfactants were studied. It was found that the one having the longer hydrocarbon tail yielded a larger solubilization and a smaller adsorption.
OSTI ID:
5467276
Journal Information:
Soc. Pet. Eng. AIME, Pap.; (United States), Journal Name: Soc. Pet. Eng. AIME, Pap.; (United States) Vol. SPE11212; ISSN SEAPA
Country of Publication:
United States
Language:
English

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Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
ABS
ADSORPTION
ALCOHOLS
ALKALI METAL COMPOUNDS
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
AQUEOUS SOLUTIONS
CHALCOGENIDES
CHEMICAL COMPOSITION
CHLORIDES
CHLORINE COMPOUNDS
COLLOIDS
COMPARATIVE EVALUATIONS
DISPERSIONS
ELECTROLYTES
EMULSIONS
ENHANCED RECOVERY
EQUILIBRIUM
ESTERS
EXPERIMENT PLANNING
FLUID INJECTION
HALIDES
HALOGEN COMPOUNDS
HYDROXY COMPOUNDS
MATHEMATICS
MICROEMULSION FLOODING
MICROEMULSIONS
MISCIBLE-PHASE DISPLACEMENT
MIXTURES
OIL WELLS
OPTIMIZATION
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PENTANOLS
PHASE STUDIES
PLANNING
QUANTITY RATIO
RECOVERY
REGRESSION ANALYSIS
SALINITY
SODIUM CHLORIDES
SODIUM COMPOUNDS
SOLUBILITY
SOLUTIONS
SORPTION
STATISTICS
SULFONIC ACID ESTERS
SURFACTANTS
WELLS