Condition and mechanism of sedimentation of asphalten-resin substances in the processes of production, transporting and preparation of oil have been analyzed in the given investigation. Models of description of sedimentation processes of asphalten-resin substances in horizontal and vertical conveying pipes, models of change of porosity in oil layers and on the surface of water in oil emulsion have been offered. It has been mentioned that mainly mechanism of sedimentation of particles is characterized by migration-diffusion transfer of the particles to the surface in laminar and turbulent flow. Possible variants of comparison of experimental and calculation values have been shown.
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