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
• Resource Relation: Patent Priority Date: Priority date 31 Mar 1983, Japan; Other Information: PAT-APPL-480863
• Country of Publication: United States
• Language: English

Related Subjects

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