... Abstract This work concerns with simulation of permeability impairment as a result of asphaltene deposition at the field scale, which is a real situation of oil production from petroleum reservoirs. The involved processes are the initial precipitation of asphaltene from the reservoir fluid...

... Abstract Accurate modeling of the asphaltenes precipitation from asphaltenic crude oil is essential in order to possible preventive and curative measures for the potential problem of asphaltene deposition occurring during oil production, transport and refining operations. Available...

..., motion, and deposition are simultaneously solved to give a 3-D solution of the gravel pack process. The modeling equations consist of five partial differential equations (PDEs) with five dependent variables, all of which were solved simultaneously. The system of PDEs was approximated using...

... a gas plant located close to the target reservoir. To evaluate feasibility, first a specially designed dynamic asphaltene apparatus was used to screen readily available solvents and their mixtures. Solvent/oil miscibility and on-set of asphaltene deposition were determined by analyses of light...

... with classical DBF approach to validate the result against deep bed filtration theory. Application of the model to the published data from offshore Golf of Mexico is presented. drillstem/well testing filtration theory coefficient filtration equation particle upstream oil & gas deposition...

... or technically feasible. Another benefit of the VAPEX process is the potential to upgrade the oil in-situ 3 resulting from asphaltenes deposition. However, the initiation and effect of asphaltenes precipitation on fluid flow during the VAPEX process has not been resolved. Asphaltenes deposition was observed...

... Abstract This paper describes the incorporation of asphaltene deposition and geochemistry in the simulation of CO 2 floods. The asphaltene deposition model includes reversible and irreversible asphaltene precipitation followed by surface deposition and pore-throat plugging. Simulation runs...

... Abstract Asphaltene deposition is an ever-increasing problem at Kuwait Oil Company fields and in many fields worldwide. KOC is one of the oil companies that is suffering from asphaltene problem. The degrees of these problems within the KOC fields range from moderate to severe. Most...

... extraction (into the injected solvent) of light hydrocarbon components of oil and asphaltene deposition. Upon contact with the solvent vapour, vaporizable components of oil are extracted into the vapour phase and/or transfer of some of the solvent into the oil phase occurs. operation deposition...

... and regular solution theoryapproach is currently under investigation to model the phase behavior of asphaltenes at high pressures and temperatures. Introduction Deposition of asphaltenes is a serious potential problem in the production and processing of petroleum. It can occur in the reservoir...

... Introduction Production of heavy oils and paraffinic crude reserves often results in the deposition of organic solids, typically waxes or asphaltenes. The organic deposits can reduce the productivity of the reservoir as well as foul piping and surface equipment. Current chemical and mechanical...