Micellar slug for oil recovery

Patent · Tue Aug 27 00:00:00 EDT 1985

OSTI ID:6159652

Morita, H; Kawada, Y; Ukigai, T; Yamada, J

A micellar slug for use in the recovery of oil is described, the slug containing a hydrocarbon, an aqueous medium, a surfactant, and a cosurfactant. The surfactant contains as an essential component an alpha-olefin sulfonate having 10 to 26 carbon atoms and containing 0.1% to 15% by weight by weight of a disulfonate. This micellar slug has an excellent salinity tolerance and hard-water resistance. Furthermore, the micellar slugs of the present invention are capable of forming micro-emulsions having a sufficiently low interfacial tension and, therefore, can improve oil recovery efficiency.

• Assignee: Lion Corporation, Tokyo, (Japan)
• Patent Number(s): US 4537253
• OSTI ID: 6159652
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
ALKENES
AQUEOUS SOLUTIONS
CHEMICAL COMPOSITION
CHEMICAL PROPERTIES
COLLOIDS
DISPERSIONS
DISPLACEMENT FLUIDS
EMULSIONS
ENGINEERING
ENHANCED RECOVERY
FLUID INJECTION
FLUIDS
HYDROCARBONS
MICROEMULSION FLOODING
MICROEMULSIONS
MISCIBLE-PHASE DISPLACEMENT
MIXTURES
OIL WELLS
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
RECOVERY
RESERVOIR ENGINEERING
SOLUTIONS
SULFONATES
SWEEP EFFICIENCY
WELLS