Method of extracting and reutilizing surfactants from emulsions

Patent · Tue Apr 30 04:00:00 EDT 1985

OSTI ID:5293752

Maddox, J Jr

This is a claim for extracting surfactants from produced emulsions of oil, water and surfactant and concentrating the surfactants into a relatively small volume, emulsion phase that can be reutilized in surfactant flooding. The two phases left behind in the extraction are a substantially water-free and surfactant-free crude oil phase and an oil-free aqueous phase. The extracting compounds employed are the alkali metal salts and ammonium salts of cumene sulfonate, propyl benzene sulfonate, ethyl benzene sulfonate, methyl ethyl benzene sulfonate, diethyl benzene sulfonate, methyl propyl benzene sulfonate, xylene sulfonate and dicyclopentadiene sulfonate.

• Assignee: Texaco Inc.
• Patent Number(s): US 4513820
• OSTI ID: 5293752
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
ALKALI METAL COMPOUNDS
AMMONIUM COMPOUNDS
CHEMICAL COMPOSITION
DISPLACEMENT FLUIDS
ENHANCED RECOVERY
EXTRACTION
FLUID INJECTION
FLUIDS
MANAGEMENT
MATERIALS RECOVERY
MICROEMULSION FLOODING
MISCIBLE-PHASE DISPLACEMENT
OIL WELLS
ORGANIC COMPOUNDS
ORGANIC SOLVENTS
ORGANIC SULFUR COMPOUNDS
PROCESSING
RECOVERY
RECYCLING
SEPARATION PROCESSES
SOLVENT EXTRACTION
SOLVENTS
SULFONATES
SURFACTANTS
WASTE MANAGEMENT
WASTE PROCESSING
WELLS