Use of amine oxide surfactants for chemical flooding EOR (enhanced oil recovery)

Technical Report · Wed Nov 01 00:00:00 EST 1989

DOI:https://doi.org/10.2172/5586604· OSTI ID:5586604

Olsen, D K

The use of amine oxides with and without alcohols as cosolvents, and in combination with other surfactants as mixed micellar formulations for enhanced oil recovery by surfactant flooding was investigated. Amine oxides are a salt-tolerant class of surfactants that produce low interfacial tension and can develop viscosity without the addition of polymers. These salt-tolerant formulations generate three-phase regions with hydrocarbons over a broad salinity range, develop moderate solubilization, and produce low interfacial tensions, however oil recovery from amine oxide-alcohol phase behavior optimized formulations was directly dependent upon the quantity of surfactant injected. The large pore volume and high concentration of surfactant required prohibits their economic use as the primary surfactant in chemical flooding EOR. Dimethylalkylamine oxides are useful as cosurfactants and viscosifiers in formulations with other surfactants for chemical flooding EOR but the use of ethoxylated and propoxylated amine oxides should be avoided due to the decomposition of these amine oxides under reservoir conditions. Phase behavior, phase inversion temperatures, and viscosity scans have been correlated with surfactant structures to provide a guide for amine oxide applications in chemical flooding. 36 refs., 5 figs., 6 tabs.

• Research Organization: National Energy Technology Lab. (NETL), Bartlesville, OK (United States). National Inst. for Petroleum and Energy Research (NIPER)
• Sponsoring Organization: DOE/FE
• DOE Contract Number: FC22-83FE60149
• OSTI ID: 5586604
• Report Number(s): NIPER-417; ON: DE89000773
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
PETROLEUM
ENHANCED RECOVERY
SURFACTANTS
EFFICIENCY
PHASE STUDIES
ADSORPTION
ALCOHOLS
AMINES
CORRELATIONS
OXIDES
PETROLEUM SULFONATES
SURFACE TENSION
VISCOSITY
CHALCOGENIDES
ENERGY SOURCES
ESTERS
FOSSIL FUELS
FUELS
HYDROXY COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXYGEN COMPOUNDS
RECOVERY
SORPTION
SULFONATES
SULFONIC ACID ESTERS
SURFACE PROPERTIES
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