Phosphorus containing ester cosurfactants in enhanced oil recovery processes

Patent · Tue Nov 06 00:00:00 EST 1984

OSTI ID:6202075

Stapp, P R

A surfactant system useful for oil recovery consisting essentially of a surfactant, such as a petroleum sulfonate, and at least one cosurfactant selected from the group consisting of a phosphate ester of the formula: R-O-P (=O)(-O-R)-O-R and a phosphite ester represented by the formula R-O-P (-O-R)-O-R and a phosphonate ester represented by the formula R-P(=O)(-O-R)-O-R wherein R is either a methyl, ethyl or propyl group.

• Assignee: Phillips Petroleum Company
• Patent Number(s): US 4480692
• OSTI ID: 6202075
• Resource Relation: Patent File Date: Filed date 27 Oct 1982; Other Information: PAT-APPL-437084
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
DISPLACEMENT FLUIDS
CHEMICAL COMPOSITION
OIL WELLS
MICROEMULSION FLOODING
PETROLEUM
SALINITY
ENHANCED RECOVERY
ESTERS
PHOSPHORUS COMPOUNDS
SURFACTANTS
ENERGY SOURCES
FLUID INJECTION
FLUIDS
FOSSIL FUELS
FUELS
MISCIBLE-PHASE DISPLACEMENT
ORGANIC COMPOUNDS
RECOVERY
WELLS
020300* - Petroleum- Drilling & Production