Soluble oil composition. [83. 8% recovery]

Patent · Tue Jun 27 00:00:00 EDT 1972

OSTI ID:7299605

Holm, L W

An oil-external microemulsion was used for tertiary oil recovery. Petronate CR (mixed alkyl aryl petroleum monosulfonate), Illinois crude oil (gravity 39/sup 0/ API), 4 percent water, and butyl Cellosolve (ethylene glycol monobutyl ether) were combined to form the microemulsion. Six-foot packs of Nevada 130 sand were first saturated with water and then with the Illinois crude. Brine was used to waterflood the packs. The microemulsion slug, followed by an aqueous polymer flood (Pusher 500), and driven by a brine recovered 83.8 percent OIP after waterflooding.

• Assignee: Union Oil Co. of California
• Patent Number(s): US 3673124
• OSTI ID: 7299605
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
CHEMICAL COMPOSITION
COLLOIDS
DISPERSIONS
EMULSIONS
ENERGY SOURCES
ENHANCED RECOVERY
ESTERS
ETHERS
FLUID INJECTION
FOSSIL FUELS
FUELS
MICROEMULSION FLOODING
MICROEMULSIONS
MISCIBLE-PHASE DISPLACEMENT
OIL WELLS
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
ORGANIC SULFUR COMPOUNDS
PETROLEUM
PETROLEUM SULFONATES
SAND
SULFONATES
SULFONIC ACID ESTERS
WELLS