Adsorption of Petroleum Resins and Asphaltenes onto Reservoir Rock Sands Studied by Near Infrared (NIR) Spectroscopy (ABSTRACT)

摘要

Asphaltenes and resins are the most polar petroleum macromolecules. It causes their rather high superficial activity. Interest to monolayer and multilayer adsorption of these natural macromolecules is mushroomed rapidly because of significant new opportunities. Relatively high value of asphaltene and resin adsorption means that these substances are responsible for many phenomena in petroleum industry: well bore plugging and pipeline deposition; stabilization of water/oil emulsions; sedimentation and plugging during crude oil storage; adsorption on refining equipment and coke formation. The knowledge of kinetic and thermodynamic parameters of adsorption opens an opportunity of regulation of capillary number and wettability. Actually it opens a way for physical and chemical engineering of liquid-solid interfaces in oil industry.