Process for enhanced oil recovery employing petroleum sulfonate blends

Patent · Tue May 01 04:00:00 EDT 1984

OSTI ID:6785700

Hsieh, W Ch; Bostich, J M; Koepke, J W

Enhanced oil recovery from a subterranean petroleum reservoir is realized by successively flooding oil-bearing subterranean formations with a micellar displacement fluid comprising a hydrocarbon, cosurfactant, brine and two or more different petroleum sulfonates, a mobility buffer, and an aqueous drive fluid; the oil is recovered from one or more production wells spaced apart from the injection well in the reservoir.

• Assignee: Union Oil Company of California
• Patent Number(s): US 4446036
• OSTI ID: 6785700
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
AQUEOUS SOLUTIONS
BRINES
CHEMICAL COMPOSITION
DISPERSIONS
DISPLACEMENT FLUIDS
ENHANCED RECOVERY
ESTERS
FLUID INJECTION
FLUIDS
HYDROCARBONS
INJECTION WELLS
MICROEMULSION FLOODING
MISCIBLE-PHASE DISPLACEMENT
MIXTURES
OIL WELLS
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
PETROLEUM SULFONATES
RECOVERY
SOLUTIONS
SULFONATES
SULFONIC ACID ESTERS
SURFACTANTS
WELLS