Two- and three-phase relative permeabilities of micellar fluids
Two- and three-phase relative permeabilities have been measured for a low-interfacial-tension (IFT) brine/oil/surfactant/alcohol mixture in Berea sandstone cores. The measurements were done at steady-state conditions with a constant nominal capillary number of 10/sup -2/. These are the first three-phase micellar relative permeabilities reported to date. Continuous and slug displacements of both partitioning and nonpartitioning radioactive tracers were run for each steady-state experiment. The effluent tracer data from these experiments were analyzed by a capacitance model. Both excess phases flowing with the microemulsion showed significant capacitance effects, but the microemulsion did not. The absence of capacitance indicates that the microemulsion was probably the wetting phase in these low-IFT flows, even more wetting than the excess brine phase. The relative permeability of each phase is a function of only its own saturation during three-phase flow. Polymer dissolved in brine had little effect on the relative permeabilities of brine and microemulsion in two-phase flow.
- Research Organization:
- Petroleum Engineering Dept., Univ. of Texas, TX
- OSTI ID:
- 5968418
- Journal Information:
- SPE (Society of Petroleum Engineers) Format. Eval.; (United States), Journal Name: SPE (Society of Petroleum Engineers) Format. Eval.; (United States) Vol. 2:3; ISSN SFEVE
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
020300* -- Petroleum-- Drilling & Production
ALCOHOLS
BRINES
CHEMICAL COMPOSITION
DISPLACEMENT FLUIDS
ENERGY SOURCES
ENHANCED RECOVERY
FLOW MODELS
FLUID FLOW
FLUID INJECTION
FLUID MECHANICS
FLUIDS
FOSSIL FUELS
FUELS
HYDRAULIC CONDUCTIVITY
HYDRODYNAMICS
HYDROXY COMPOUNDS
ISOTOPE APPLICATIONS
MATHEMATICAL MODELS
MEASURING METHODS
MECHANICS
MICROEMULSION FLOODING
MISCIBLE-PHASE DISPLACEMENT
MULTIPHASE FLOW
OIL WELLS
ORGANIC COMPOUNDS
PERMEABILITY
PETROLEUM
POLYMERS
RECOVERY
RESERVOIR ROCK
ROCKS
SANDSTONES
SEDIMENTARY ROCKS
STEADY-STATE CONDITIONS
STIMULATION
SURFACE PROPERTIES
SURFACE TENSION
SURFACTANTS
TRACER TECHNIQUES
TWO-PHASE FLOW
WELL STIMULATION
WELLS