Polymer suspension and production of oil therewith

Patent · Tue Mar 11 04:00:00 EST 1969

OSTI ID:5564744

Harvey, R R; Vaclaw, M M

A stable aqueous suspension of a polymer of an olefin of 2 to 6 carbon atoms is made by dispersing polymer particles of a size in the range of 0.001 to 2 mu in a concentration in the range of 0.001 to 5% by wt of the suspension in water or brine with the aid of a nonionic surfactant in solution in a concentration in the range of 0.001 to 5% by wt of the solution, the surfactant being a polyethylene oxide either or thioether having at least 30 ethylene oxide units at the hydrophilic end and a single terminal hydroxyl group. An oil-displacing surfactant is added to the suspension and a slug of the resulting suspension is introduced to an oil stratum and driven through a section thereof to produce oil. The oil-displacing surfactant is preferably a polyethylene oxide ether or thioether having 4 to 10 ethylene oxide units at the hydrophilic end and a single terminal hydroxyl group. (10 claims)

• Assignee: Phillips Petroleum Co.
• Patent Number(s): US 3431976
• OSTI ID: 5564744
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
ADDITIVES
ALCOHOLS
ALKENES
BRINES
CHALCOGENIDES
DISPERSIONS
ENHANCED RECOVERY
FLUID INJECTION
GLYCOLS
HYDROCARBONS
HYDROXY COMPOUNDS
OIL WELLS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
PARTICLE SIZE
POLYETHYLENE GLYCOLS
POLYMERS
RECOVERY
SIZE
SULFIDES
SULFUR COMPOUNDS
SURFACTANTS
SUSPENSIONS
WATERFLOODING
WELLS