Micellar clug for oil recovery

Patent · Tue Aug 13 00:00:00 EDT 1985

OSTI ID:6359365

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

A micellar slug for use in the recovery of oil, the slug containing a hydrocarbon, an aqueous medium, a surfactant, and a cosurfactant. The surfactant contains as essential components at least one alpha-olefin sulfonate having 10 to 30 carbon atoms and at least one ethoxylate selected from the group consisting of polyoxyethylene alkyl ethers and polyoxyethylene alkylphenyl ethers in a weight ratio. The micro-emulsion can be formed from this micellar slug in a wide composition range. Furthermore, this micellar slug has an excellent salinity tolerance and hard-water resistance.

• Assignee: Lion Corp. (Japan)
• Patent Number(s): US 4534411
• OSTI ID: 6359365
• Resource Relation: Patent Priority Date: Priority date 15 Mar 1983, Japan; Other Information: PAT-APPL-475602
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
DISPLACEMENT FLUIDS
CHEMICAL COMPOSITION
CHEMICAL PROPERTIES
OIL WELLS
MICROEMULSION FLOODING
ALKANES
AQUEOUS SOLUTIONS
CHEMICAL PREPARATION
ENHANCED RECOVERY
HYDROCARBONS
PHENYL ETHER
POLYETHYLENE GLYCOLS
SULFONATES
SURFACTANTS
ALCOHOLS
DISPERSIONS
ETHERS
FLUID INJECTION
FLUIDS
GLYCOLS
HYDROXY COMPOUNDS
MISCIBLE-PHASE DISPLACEMENT
MIXTURES
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
ORGANIC POLYMERS
ORGANIC SULFUR COMPOUNDS
POLYMERS
RECOVERY
SOLUTIONS
SYNTHESIS
WELLS
020300* - Petroleum- Drilling & Production