The effect of temperature and interfacial tension on water/oil relative permeabilities of consolidated sands
Relative permeability data for high- and low-tension systems were obtained experimentally at temperatures ranging from 22/sup 0/C to 175/sup 0/C. No other data have been reported for high temperatures and low interfacial tensions. Results for high-tension systems at elevated temperatures and for low-tension systems at room temperature are compared with other published data. The results of this study can be used to predict the performance and efficiency of enhanced oil recovery methods in which chemicals are considered for use with hot waterfloods or as steamflood additives. They are of particular interest with respect to steamfloods in viscous oil reservoirs. Equipment was designed and constructed to measure water-oil relative permeabilities at elevated temperatures and pressures. It can be used for both steady-state and unsteadystate dynamic displacement measurements. The apparatus permits very accurate measurement of fluid saturations volumetrically by monitoring the oil content of the total system using a high pressure, high temperature water-oil separator. Experiments were conducted on fired Berea sandstone cores using n-dodecane and 1% NaCl brine. Aqueous low-concentration surfactant solutions were used to change interfacial tension levels. For the experiments reported here, the fluid pressure was kept constant at 300 psig and the overburden pressure at 650 psig.
- Research Organization:
- Univ. of Southern California
- OSTI ID:
- 6644760
- Report Number(s):
- CONF-8304162-
- Journal Information:
- Soc. Pet. Eng. AIME, Pap.; (United States), Vol. SPE/DOE 12689; Conference: 4. SPE/DOE symposium on enhanced oil recovery, Tulsa, OK, USA, 16 Apr 1983
- Country of Publication:
- United States
- Language:
- English
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Effect of temperature and interfacial tension on water-oil relative permeabilities of consolidated sands
Relative permeability functions for high- and low-tension systems at elevated temperatures
Related Subjects
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
BRINES
SURFACE TENSION
DODECANE
SANDSTONES
PERMEABILITY
STEAM INJECTION
ADDITIVES
SURFACTANTS
WATERFLOODING
BENCH-SCALE EXPERIMENTS
CATALYTIC EFFECTS
DISPLACEMENT FLUIDS
HIGH TEMPERATURE
HOT WATER
MEASURING INSTRUMENTS
MEDIUM PRESSURE
MEDIUM TEMPERATURE
OIL SATURATION
OIL WELLS
PRESSURE EFFECTS
REAGENTS
RESERVOIR FLUIDS
ROCK-FLUID INTERACTIONS
SEPARATION EQUIPMENT
TEMPERATURE EFFECTS
THERMODYNAMICS
ALKANES
ENHANCED RECOVERY
FLUID INJECTION
FLUIDS
HYDROCARBONS
HYDROGEN COMPOUNDS
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
RECOVERY
ROCKS
SATURATION
SEDIMENTARY ROCKS
SURFACE PROPERTIES
THERMAL RECOVERY
WATER
WELLS
020300* - Petroleum- Drilling & Production
400301 - Organic Chemistry- Chemical & Physicochemical Properties- (-1987)