Thermal and rheological study of polysaccharides for enhanced oil recovery

Journal of Thermal Analysis and Calorimetry (Impact Factor: 1.98). 07/2006; 85(1). DOI: 10.1007/s10973-005-7339-7

ABSTRACT Enhanced oil recovery
process is based on the injection of chemical products (e.g. polymers, surfactants,
gases) or thermal energy (originating from the injection of e.g. steam, hot
water, in situ combustion) to recover crude oil. One of these processes use
polymer solution to mobilize the oil in the reservoir. In this work the thermal
decomposition kinetic of xanthan gum, guar gum and a blend (50/50 mass/mass%)
was studied according to Ozawa–Flynn–Wall method. According to
the kinetic analysis, the studied systems were copmpatible. The rheological
behavior of the samples was studied in distilled water and seawater at different
temperatures. Only the blend was studied in distilled water presented synergism
(enhancement in material properties like stability and viscosity) which was
confirmed through rheology.

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