An experimental and numerical study of polymer action on relative permeability and capillary pressure

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doi: 10.1144/petgeo.5.2.201
Authors:Barreau, P.; Lasseux, D.; Bertin, H.; Glénat, P.; Zaitoun, A.
Author Affiliations:Primary:
University of Bordeaux I, Talence, France
Other:
TOTAL Exploration Production, France
Institut Français du Pétrole, France
Volume Title:Petroleum Geoscience
Source:Petroleum Geoscience, 5(2), p.201-206. Publisher: Geological Society Publishing House, London, United Kingdom. ISSN: 1354-0793
Publication Date:1999
Note:In English. 16 refs.; illus., incl. 2 tables
Summary:Unsteady state two-phase flow experiments were performed to check the action of an adsorbed water-soluble polymer on relative permeability and capillary pressure. A selective reduction of the relative permeability to water with respect to relative permeability to oil was observed. Capillary pressure, measured directly on the core, was increased after polymer injection. Since the polymer has little influence on interfacial tension, this trend is interpreted as a reduction of pore size due to polymer adsorption. The validity of this assumption was checked by the investigation of a pore-scale numerical model. Relative permeabilities and capillary pressure were computed for a range of flow rates. Numerical results indicated that the polymer adsorption model (wall effect) successfully reproduces qualitatively the experimental observations.
Sections:Physical properties of rocks and minerals
Subjects:Capillarity; Capillary pressure; Enhanced recovery; Experimental studies; Fluid dynamics; Permeability; Petroleum; Petroleum engineering; Polymers; Porous materials; Reservoir properties; Water content; Waterflooding
Abstract Numbers:00M/1105
Record ID:2001035502
Copyright Information:GeoRef, Copyright 2019 American Geosciences Institute.
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