Sulfonate to hydrocarbon ratio influencing thermostability of micellar dispersions

Patent · Mon Feb 02 23:00:00 EST 1970

OSTI ID:7215938

Davis, J A; Kunzman, W J

The thermostability of micellar dispersions can be shifted to higher temperatures by increasing the ratio of surfactant to hydrocarbon within the dispersion, by increasing the amount of electrolyte, and by varying the particular type of components within the micellar solution. The oil recovery solution is composed of soft water, hydrocarbon (crude oil), surfactant (sodium or ammonium petroleum sulfonates with an average molecular weight of 420 to 470), cosurfactant (primary butanols, primary pentanols, primary and secondary hexanols), and electrolyte (inorganic bases, inorganic acids, or inorganic salts).

• Assignee: Marathon Oil Co.
• Patent Number(s): US 3493047
• OSTI ID: 7215938
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
ALCOHOLS
COLLOIDS
DISPERSIONS
EMULSIONS
ENERGY SOURCES
ENHANCED RECOVERY
ESTERS
FLUID INJECTION
FOSSIL FUELS
FUELS
HYDROXY COMPOUNDS
MICELLAR SYSTEMS
MICROEMULSION FLOODING
MICROEMULSIONS
MISCIBLE-PHASE DISPLACEMENT
MOLECULAR WEIGHT
OIL WELLS
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
PETROLEUM
PETROLEUM SULFONATES
STABILITY
SULFONATES
SULFONIC ACID ESTERS
WELLS