Sulfonate to hydrocarbon ratio influencing thermostability of micellar dispersions

Patent · Mon Feb 02 23:00:00 EST 1970

OSTI ID:5001982

Davis, Jr, J A; Kunzman, W J

Thermostability of micellar dispersions containing hydrocarbon, aqueous medium, and surfactant can be shifted to higher temperatures by increasing the ratio of surfactant to hydrocarbon within the micellar dispersion. Such dispersions are useful to recover crude oil in a tertiary oil recovery process wherein the temperature of the subterranean formation is as high as 200$F or more. For example, a subterranean formation at a temperature above about 80$F can be flooded by designing the surfactant to hydrocarbon ratio within the micellar dispersion to be stable at the temperature of the formation. (16 claims)

• Assignee: Marathon Oil Co.
• Patent Number(s): US 3493047
• OSTI ID: 5001982
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
ADDITIVES
AQUEOUS SOLUTIONS
DISPERSIONS
ENHANCED RECOVERY
ESTERS
FLUID INJECTION
HYDROCARBONS
MEDIUM TEMPERATURE
MICELLAR SYSTEMS
MICROEMULSION FLOODING
MISCIBLE-PHASE DISPLACEMENT
MIXTURES
OIL WELLS
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
QUANTITY RATIO
RECOVERY
RESERVOIR TEMPERATURE
SOLUTIONS
STABILITY
SULFONIC ACID ESTERS
SURFACTANTS
TEMPERATURE DEPENDENCE
WELLS