Mobilization and banking of residual oil in high salinity reservoir systems with the use of aqueous surfactant solutions of ethoxylated carboxymethylates

Conference · Fri Jan 01 00:00:00 EST 1982 · Soc. Pet. Eng. AIME, Pap.; (United States)

OSTI ID:6354237

Kraft, H R; Pusch, G

Highly saline reservoir brine and crude oil with ethoxylated carboxymethylates and cosolvents show a complicated phase behavior. Easily obtainable and well defined indicators are therefore required to characterize phase conditions, which prevail in displacement processes. The phase inversion temperature (PIT) has been investigated with respect to its ability to discern phase transformation in oil-brine-surfactant systems. PIT proved to be very sensitive to changes in salinity, ionic strength, water-oil ratio and surfactant concentration, which simultaneously are responsible for phase inversion of chemical systems in the porous medium. 18 refs.

• Research Organization: Univ Clausthal, Ger
• OSTI ID: 6354237
• Report Number(s): CONF-820419-
• Journal Information: Soc. Pet. Eng. AIME, Pap.; (United States), Vol. SPE/DOE 10714; Conference: Enhanced oil recovery symposium, Tulsa, OK, USA, 4 Apr 1982
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
BRINES
PHASE TRANSFORMATIONS
OIL WELLS
MICROEMULSION FLOODING
WATERFLOODING
PETROLEUM
SURFACTANTS
ENHANCED RECOVERY
RESIDUAL PETROLEUM
WELL STIMULATION
ENERGY SOURCES
FLUID INJECTION
FOSSIL FUELS
FUELS
MISCIBLE-PHASE DISPLACEMENT
RECOVERY
STIMULATION
WELLS
020300* - Petroleum- Drilling & Production