Shear-stabilized emulsion flooding process

Patent · Tue Jun 29 00:00:00 EDT 1982

OSTI ID:6275916

Carpenter, C W; Reed, R L

Additional amounts of crude oil are recovered from a subterranean formation by flooding with a translucent emulsion comprising an upper- or middle-phase microemulsion as an external phase and a polymer-containing brine solution as an internal phase. The translucent emulsion tends to coalesce into its component phases under conditions of no shear, but is stabilized by low shears such as those imposed on fluids flowing through a subterranean formation.

• Assignee: Exxon Production Research Co
• Patent Number(s): US 4337159
• OSTI ID: 6275916
• Resource Relation: Patent File Date: Filed date 19 Jun 1980; Other Information: PAT-APPL-161195
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
INJECTION WELLS
WATERFLOODING
PETROLEUM
ENHANCED RECOVERY
BRINES
EMULSIONS
MICROEMULSIONS
POLYMERS
POLYSACCHARIDES
SURFACTANTS
CARBOHYDRATES
COLLOIDS
DISPERSIONS
ENERGY SOURCES
FLUID INJECTION
FOSSIL FUELS
FUELS
ORGANIC COMPOUNDS
RECOVERY
SACCHARIDES
WELLS
020300* - Petroleum- Drilling & Production