Surfactant development for enhanced oil recovery. Seventh quarterly report, July--September 1995
Aqueous dihexadecyldimethylammonium bromide (DHDAB) surfactant was used to form an emulsion with samples of crude oil (Burbank Crude Oil) supplied by Phillips Petroleum Company. Influence of the surfactant concentration in the uptake of the oil in the aqueous phase was studied. It was observed that as weight of the surfactant solubilized in the oil-water system increases the volume of oil solubilized in the aqueous phase increases. Viscosity of the emulsion was also observed to increase with an increase in the weight of surfactant added. A co-surfactant, n-butyl alcohol was added and its effect was to reverse the observation described above. The uptake of aqueous surfactant into the oil phase was very evident. Salinity scan of this system showed that the addition of sodium chloride, NaCl, produced a middle phase whose volume increased with an increase in the amount of salt added. Also there was observed, a remarkable high salinity tolerance. Rheology of the emulsion showed typical non-Newtonian behavior. The emulsion was observed to exhibit a pseudoplastic profile. The shear-thinning profile was evident from the observed viscosity-shear rate experiment.
- Research Organization:
- Morgan State Univ., Baltimore, MD (United States). School of Engineering
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- FG22-93MT93007
- OSTI ID:
- 249271
- Report Number(s):
- DOE/MT/93007--T2; ON: DE96012090
- Country of Publication:
- United States
- Language:
- English
Similar Records
Mobilization and banking of residual oil in high salinity reservoir systems with the use of aqueous surfactant solutions of ethoxylated carboxymethylates
Crude oil emulsions containing a compatible fluorochemical surfactant
Microemulsions which compatibly incorporate viscosifiers and their use in enhanced oil recovery
Conference
·
Thu Dec 31 23:00:00 EST 1981
· Soc. Pet. Eng. AIME, Pap.; (United States)
·
OSTI ID:6185253
Crude oil emulsions containing a compatible fluorochemical surfactant
Patent
·
Mon Feb 18 23:00:00 EST 1991
·
OSTI ID:5671089
Microemulsions which compatibly incorporate viscosifiers and their use in enhanced oil recovery
Patent
·
Tue Jun 09 00:00:00 EDT 1981
·
OSTI ID:6049517