Enhanced oil recovery composition

Patent · Tue Feb 28 04:00:00 EST 1989

OSTI ID:6229098

Hsieh, W C

A stable latex composition is described comprising; water; at least one polymer comprising from about 45 to about 65 weight percent ethylacrylate monomer residue, from about 10 to about 45 weight percent methylacrylic acid monomer residue, and from about about 20 to about 30 weight percent acrylic acid monomer residue; and from about 2 to about 10 parts per 100 parts of monomer of at least 1 nonylphenol polyethylene oxide ether sulfate, wherein the polyethylene oxide adduct of the nonylphenol polyethylene oxide ether sulfate is comprised of at least about 20 moles of ethylene oxide monomer residue. The polymer and the nonylphenol polyethylene oxide ether sulfate are present at an amount sufficient to provide a viscosity less than about 50 centipoise at about 70/sup 0/F.

• Assignee: Union Oil Co. of California, Los Angeles, CA
• Patent Number(s): US 4808648
• OSTI ID: 6229098
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
ACRYLATES
ACRYLIC ACID
ALCOHOLS
ALKYL RADICALS
AROMATICS
CARBOXYLIC ACID SALTS
CARBOXYLIC ACIDS
CHEMICAL COMPOSITION
DISPLACEMENT FLUIDS
ENERGY SOURCES
ENHANCED RECOVERY
ETHERS
ETHYL RADICALS
FLUID INJECTION
FLUIDS
FOSSIL FUELS
FUELS
GLYCOLS
HYDROXY COMPOUNDS
MONOCARBOXYLIC ACIDS
MONOMERS
OIL WELLS
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
OXYGEN COMPOUNDS
PETROLEUM
PHENOLS
POLYMERS
RADICALS
RECOVERY
STIMULATION
SULFATES
SULFUR COMPOUNDS
WATERFLOODING
WELL STIMULATION
WELLS