Oil production by aqueous fluid drive using a non-ionic surfactant

Patent · Mon Jan 08 23:00:00 EST 1968

OSTI ID:7215909

Purre, H

A nonionic polyoxyethylene ether or thioether in an aqueous solution changes the wettability of an oil reservoir from oil-wet to water-wet and recovers oil. The oil-wet part of crushed Burbank cores (Oklahoma) was packed in microcells, flooded with Burbank crude (38/sup 0/ API, 6.8 cp at 78/sup 0/F), and waterflooded with simulated Burbank produced brine. Injection of a solution containing the surfactant, Tall oil ethylene oxide produced 50 percent OIP. After 48 hours a brine flood was injected which increased the total recovery to 90 percent OIP.

• Assignee: Phillips Petroleum Co.
• Patent Number(s): US 3362474
• OSTI ID: 7215909
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
AQUEOUS SOLUTIONS
DISPERSIONS
ENERGY SOURCES
ENHANCED RECOVERY
ETHERS
FLUID INJECTION
FOSSIL FUELS
FUELS
MIXTURES
NORTH AMERICA
OIL WELLS
OKLAHOMA
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
PETROLEUM
SOLUTIONS
SOUTHWEST REGION
SURFACTANTS
USA
WATERFLOODING
WELLS