Normal Stresses and Interface Displacement: Influence of Viscoelasticity on Enhanced Oil Recovery Efficiency

J. Avendano 1, * Nicolas Pannacci 1 Benjamin Herzhaft 1 Patrick Gateau 1 Philippe Coussot 2
* Auteur correspondant
1 IFPEN - IFP Energies nouvelles
2 Physique des milieux poreux
NAVIER UMR 8205 - Laboratoire Navier
Abstract : One of chemical Enhanced Oil Recovery (EOR) methods consists in injecting aqueous solutions of polymers into the reservoir in order to improve mobility ratio between the injected fluid and the remaining oil. This "polymer flooding" process is usually only characterized with the low shear viscosity of the injected fluid, even if these aqueous solutions are strongly shear thinning and may show high elastic properties evidenced by normal stresses appearance. In order to study the mechanisms at the interface level, we develop simple model experimentations with the goal of quantifying the influence of viscoelastic properties on fluid displacement in a simple geometry. For this purpose, we propose and characterize a model fluid formulation, for which elastic and viscous effects can be tuned systematically. We study then the displacement of a viscous oil by a Newtonian non elastic, a viscoelastic or a purely shear thinning fluid in a two dimensional flow cell. Observing the shape of the interface between aqueous fluids and displaced oil permits to appreciate viscoelasticity effects on the displacement. Using model geometries and controlled rheology fluids, we show that viscoelastic fluids tend to better displace immiscible liquids than Newtonian fluids and that those effects are closely related to the apparitions of normal stresses independently of shear thinning property or variation of interfacial tension as soon as viscous effects govern the flow.
Type de document :
Article dans une revue
Oil & Gas Science and Technology - Revue d'IFP Energies nouvelles, Institut Français du Pétrole, 2012, 67 (6), pp.921-930. 〈10.2516/ogst/2012063〉
Liste complète des métadonnées
https://hal-ifp.archives-ouvertes.fr/hal-00815837
Contributeur : Catherine Luttringer <>
Soumis le : vendredi 19 avril 2013 - 14:24:04
Dernière modification le : jeudi 7 février 2019 - 16:29:38
Document(s) archivé(s) le : samedi 20 juillet 2013 - 04:02:37

Fichier

ogst110189-Avendano.pdf
Fichiers éditeurs autorisés sur une archive ouverte

Identifiants

Collections

IFP | NAVIER-POREUX | UR-NAVIER | PARISTECH | ENPC | IFSTTAR | OGST

Citation

J. Avendano, Nicolas Pannacci, Benjamin Herzhaft, Patrick Gateau, Philippe Coussot. Normal Stresses and Interface Displacement: Influence of Viscoelasticity on Enhanced Oil Recovery Efficiency. Oil & Gas Science and Technology - Revue d'IFP Energies nouvelles, Institut Français du Pétrole, 2012, 67 (6), pp.921-930. 〈10.2516/ogst/2012063〉. 〈hal-00815837〉

Exporter

BibTeX TEI DC DCterms EndNote

Partager

Métriques

Consultations de la notice

297

Téléchargements de fichiers

359

Contact

support.ccsd.cnrs.fr
hal.support@ccsd.cnrs.fr
Logo CCSD