Polymer-microemulsion complexes for the enhanced recovery of oil

Patent · Tue Oct 12 00:00:00 EDT 1982

OSTI ID:6671828

Baker, E G; Canter, N H; Robbins, M L

A polymer-microemulsion complex useful for the enhanced recovery of crude oil is disclosed. The polymer is polyethylene oxide or polyvinyl pyrrolidone and interacts with the surfactant of the microemulsion to form a physical association. The resulting complex is characterized by a complexation energy of at least 2 kcal/mole. The polymer microemulsion complexes are stable at high salinity, reduce adsorption and retention by the formation, lower interfacial tension, achieve retentions as low as 0.1 mg surfactant/gm sand at high salinity and provide for early banking , as well as high recovery of oil.

• Assignee: Exxon Research And Engineering Co.
• Patent Number(s): US 4353806
• OSTI ID: 6671828
• Resource Relation: Patent File Date: Filed date 3 Apr 1980; Other Information: PAT-APPL-136936
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
MICROEMULSION FLOODING
POLYETHYLENE GLYCOLS
PVP
OIL WELLS
ENHANCED RECOVERY
CHEMICAL COMPOSITION
COMPLEXES
MICELLAR SYSTEMS
STABILIZATION
SULFONATES
SURFACTANTS
ALCOHOLS
AMIDES
AZOLES
BLOOD SUBSTITUTES
DRUGS
FLUID INJECTION
GLYCOLS
HEMATOLOGIC AGENTS
HETEROCYCLIC COMPOUNDS
HYDROXY COMPOUNDS
LACTAMS
MISCIBLE-PHASE DISPLACEMENT
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC POLYMERS
ORGANIC SULFUR COMPOUNDS
POLYMERS
POLYVINYLS
PYRROLES
PYRROLIDONES
RECOVERY
WELLS
020300* - Petroleum- Drilling & Production