Effect of temperature and interfacial tension on water-oil relative permeabilities of consolidated sands

Book · Sun Jan 01 04:00:00 EST 1984

OSTI ID:5850632

Torabzadeh, S J

Relative permeability data for high and low tension systems at elevated temperatures are required to provide some mechanistic insight as to how the injection of hot fluids with or without chemicals may affect fluid distribution and flow behavior in porous media. This study presents experimental relative permeability data for high and low tension systems at temperatures ranging from 22/sup 0/ to 175/sup 0/C. No other data have been reported for high temperatures and low interfacial tensions. 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 steamfloods. Equipment was designed to measure water-oil relative permeabilities at elevated temperatures and pressures by both steady-state and unsteady-state displacement methods. 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. The experimental results indicate that relative permeability curves are affected by temperature, especially at low interfacial tension (IFT).

• OSTI ID: 5850632
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
ENERGY SOURCES
ENHANCED RECOVERY
FLUID INJECTION
FOSSIL FUELS
FUELS
HIGH TEMPERATURE
MEDIUM TEMPERATURE
OIL WELLS
PERMEABILITY
PETROLEUM
RECOVERY
ROCKS
SANDSTONES
SEDIMENTARY ROCKS
SURFACE PROPERTIES
SURFACE TENSION
TEMPERATURE EFFECTS
WELLS