Heavy crude oils/particle stabilized emulsions
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Updated: May 28, 2026

Measurement of the Rheology of Crude Oil in Equilibrium with CO2 at Reservoir Conditions
Published on: June 6, 2017
Iva Kralova1, Johan Sjöblom, Gisle Øye
1Ugelstad Laboratory, Norwegian University of Sciences and Technology (NTNU), Department of Chemical Engineering, Sem Sælandsvei 4, N-7491 Trondheim, Norway. iva.kralova@chemeng.ntnu.no
Abstract:
Fluid characterization is a key technology for success in process design for crude oil mixtures in the future offshore. In the present article modern methods have been developed and optimized for crude oil applications. The focus is on destabilization processes in w/o emulsions, such as creaming/sedimentation and flocculation/coalescence. In our work, the separation technology was based on improvement of current devices to promote coalescence of the emulsified systems. Stabilizing properties based on particles was given special attention. A variety of particles like silica nanoparticles (AEROSIL®), asphalthenes, wax (paraffin) were used. The behavior of these particles and corresponding emulsion systems was determined by use of modern analytical equipment, such as SARA fractionation, NIR, electro-coalescers (determine critical electric field), Langmuir technique, pedant drop technique, TG-QCM, AFM.
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