Urea as a cosurfactant in enhanced oil recovery processes

Patent · Tue Jan 15 00:00:00 EST 1985

OSTI ID:5637514

Stapp, P R; Chaney, M B

A surfactant system useful for oil recovery comprising salt water, a surfactant, such as a petroleum sulfonate, and urea. Optionally, a C/sub 3/ to C/sub 8/ alcohol is additionally present as a cosurfactant.

• Assignee: Phillips Petroleum Co.
• Patent Number(s): US 4493370
• OSTI ID: 5637514
• Resource Relation: Patent File Date: Filed date 27 Jan 1983; Other Information: PAT-APPL-461320
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
OIL WELLS
MICROEMULSION FLOODING
ALCOHOLS
ENHANCED RECOVERY
PETROLEUM SULFONATES
SALINITY
SURFACTANTS
UREA
WATER
WELL STIMULATION
AMIDES
CARBONIC ACID DERIVATIVES
ESTERS
FLUID INJECTION
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
MISCIBLE-PHASE DISPLACEMENT
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXYGEN COMPOUNDS
RECOVERY
STIMULATION
SULFONATES
SULFONIC ACID ESTERS
WELLS
020300* - Petroleum- Drilling & Production