A comprehensive study on the effects of temperature, surface age, added surfactant, salinity, and bulk viscosity on coalescence time, film rigidity, and interfacial tension: Topical report
Technical Report
·
OSTI ID:5635251
The interfacial behavior of a Wilmington crude oil was studied as part of our investigations of enhanced oil recovery by weakly alkaline solutions. For some systems, the spinning drop appratus can be used to measure transient interfacial tension (IFT) effects, coalescence times of oil drops, and film rigidity simultaneously, for rapid screening of chemical slug composition for the potential of improving oil recovery by the mechanisms of oil mobilization and oil bank formation. The experimental results presented include the effects of temperature, surface age, salinity, added surfactant, and polymer on coalescence time, film rigidity, and IFT behavior. Oil displacement tests were performed using surfactant-enhanced bicarbonte solutions formulated for improved mobility control and for improved oil mobilization and oil drop coalescence. The most significant result of this work was that we were able to measure the dynamics in IFT between 2 coalescing oil drops as perturbations in the equilibrium concentration of surfactant at the interface occurred during film drainage. The accuracy of the technique for measuring IFT and film rigidity improved as the contact radii between the oil drops increased. 17 refs., 13 figs., 11 tabs.
- Research Organization:
- National Inst. for Petroleum and Energy Research, Bartlesville, OK (USA)
- DOE Contract Number:
- FC22-83FE60149
- OSTI ID:
- 5635251
- Report Number(s):
- NIPER-278; ON: DE88001211
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
ALKALI METAL COMPOUNDS
BENCH-SCALE EXPERIMENTS
BRINES
CARBON COMPOUNDS
CARBONATES
CAUSTIC FLOODING
CHLORIDES
CHLORINE COMPOUNDS
COALESCENCE
CONTROL
DATA
DENSITY
ENERGY SOURCES
ENHANCED RECOVERY
EXPERIMENTAL DATA
FLUID INJECTION
FOSSIL FUELS
FUELS
HALIDES
HALOGEN COMPOUNDS
INFORMATION
INTERFACES
MEASURING METHODS
MOBILITY
NUMERICAL DATA
OIL WELLS
OXYGEN COMPOUNDS
PETROLEUM
PHYSICAL PROPERTIES
POLYMERS
RECOVERY
RESEARCH PROGRAMS
SALINITY
SODIUM CARBONATES
SODIUM CHLORIDES
SODIUM COMPOUNDS
SURFACE PROPERTIES
SURFACE TENSION
SURFACTANTS
TEMPERATURE EFFECTS
VISCOSITY
WATERFLOODING
WELLS
020300* -- Petroleum-- Drilling & Production
ALKALI METAL COMPOUNDS
BENCH-SCALE EXPERIMENTS
BRINES
CARBON COMPOUNDS
CARBONATES
CAUSTIC FLOODING
CHLORIDES
CHLORINE COMPOUNDS
COALESCENCE
CONTROL
DATA
DENSITY
ENERGY SOURCES
ENHANCED RECOVERY
EXPERIMENTAL DATA
FLUID INJECTION
FOSSIL FUELS
FUELS
HALIDES
HALOGEN COMPOUNDS
INFORMATION
INTERFACES
MEASURING METHODS
MOBILITY
NUMERICAL DATA
OIL WELLS
OXYGEN COMPOUNDS
PETROLEUM
PHYSICAL PROPERTIES
POLYMERS
RECOVERY
RESEARCH PROGRAMS
SALINITY
SODIUM CARBONATES
SODIUM CHLORIDES
SODIUM COMPOUNDS
SURFACE PROPERTIES
SURFACE TENSION
SURFACTANTS
TEMPERATURE EFFECTS
VISCOSITY
WATERFLOODING
WELLS