NDLI: Dynamic contact angles in oil–aqueous polymer solutions

Content Provider	Royal Society of Chemistry (RSC)
Author	Bai, Baojun Al-Shareef, Amer Neogi, P.
Copyright Year	2017
Abstract	Polymer flooding is an important process in enhanced oil recovery. The displacement front is unstable when low viscosity brine displaces the heavy crude oil in the reservoir. Water-soluble polymers are added to the brine to increase its viscosity which stabilizes the displacement process. To analyze the displacement process at the micro-level, we have investigated the dynamic contact angles in silicone oil–polymer (polyethylene oxide) solution and for the first time. The dynamic contact angle is the apparent contact angle at the three-phase contact line which governs the capillary pressure, and thus is important for the displacement process. The data show no obvious signs of either shear thinning or elastic behavior, although for some systems with highest elastic effects some unexplained effects on dynamic contact angles are observed that correlate with elastic effects. Overall, dynamic contact angles are explained well using existing models for two Newtonian fluids, when the zero shear viscosity is used for the polymer solution.
Starting Page	3337
Ending Page	3348
Page Count	12
File Format	HTM / HTML PDF
ISSN	14639076
Volume Number	19
Issue Number	4
Journal	Physical Chemistry Chemical Physics
DOI	10.1039/c6cp06132j
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Viscosity Enhanced oil recovery Polyethylene glycol Brine Silicone Polymer Contact angle Heavy crude oil Petroleum reservoir Shear thinning Three-phase electric power
Content Type	Text
Resource Type	Article
Subject	Physics and Astronomy Physical and Theoretical Chemistry

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