Polymer-microemulsion complexes for the enhanced recovery of oil

Patent · Tue Oct 12 00:00:00 EDT 1982

OSTI ID:5956160

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

A polymer-microemulsion complex useful for the enhanced recovery of crude oil is described. 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.

• Assignee: Exxon Research and Engineering Co.
• Patent Number(s): US 4353806
• Application Number: TRN: 85-007489
• OSTI ID: 5956160
• Resource Relation: Patent File Date: Filed date 3 Apr 1980
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
OIL WELLS
MICROEMULSION FLOODING
POLYMERS
SALINITY
STABILITY
SURFACTANTS
FLUID INJECTION
MISCIBLE-PHASE DISPLACEMENT
WELLS
020300* - Petroleum- Drilling & Production