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Title: Polymer-microemulsion complexes for the enhanced recovery of oil

Abstract

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.

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

Citation Formats

Baker, E G, Canter, N H, and Robbins, M L. Polymer-microemulsion complexes for the enhanced recovery of oil. United States: N. p., 1982. Web.
Baker, E G, Canter, N H, & Robbins, M L. Polymer-microemulsion complexes for the enhanced recovery of oil. United States.
Baker, E G, Canter, N H, and Robbins, M L. 1982. "Polymer-microemulsion complexes for the enhanced recovery of oil". United States.
@article{osti_6671828,
title = {Polymer-microemulsion complexes for the enhanced recovery of oil},
author = {Baker, E G and Canter, N H and Robbins, M L},
abstractNote = {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.},
doi = {},
url = {https://www.osti.gov/biblio/6671828}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Oct 12 00:00:00 EDT 1982},
month = {Tue Oct 12 00:00:00 EDT 1982}
}