Polymer-microemulsion complexes for the enhanced recovery of oil

Patent · Tue Oct 12 04:00:00 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
• Country of Publication: United States
• Language: English

Related Subjects

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