Results 21 to 30 of about 7,502 (225)
, 2023 The origin of the fluorescence redshift during asphaltene aggregation remains debated due to the great diversity of asphaltene molecules, while the extended Frenkel exciton model provided a theoretical framework for studying multi-chromophore systems ...
Fang, Liu, Fangning, Ren
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Micromechanism of petroleum asphaltene aggregation
Petroleum Exploration and Development, 2008 The periodic molecular structure model of solvent-asphaltene system is constructed using molecular mechanical and molecular dynamical methods. The influences of six kinds of different solvents (Nitrobenzene, Quinoline, Pyridine, 1-methylnaphthalene ...
Gui-wu LU +4 more
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A Numerical Simulation Study on the Kinetics of Asphaltene Particle Flocculation in a Two-dimensional Shear Flow [PDF]
Iranian Journal of Oil & Gas Science and Technology, 2019 In the current study, the kinetics of asphaltene particle flocculation is investigated under a shear flow through numerical simulation. The discrete element method (DEM) is coupled with computational fluid dynamics (CFD) to model the agglomeration and ...
Hadi Bagherzadeh +2 more
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A Novel Method for Mitigation of Asphaltene Deposition in the Wellstring [PDF]
Iranian Journal of Chemistry & Chemical Engineering, 2010 Asphaltene precipitation and deposition is a serious problem in many Iranian fields. The deposited asphaltene results in partial or total blockage of the wellbore and wellstring reducing or completely seizing oil production.
Bahram Soltani Soulgani +3 more
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Iraqi Journal of Chemical and Petroleum Engineering, 2023 Many oil and gas processes, including oil recovery, oil transportation, and petroleum processing, are negatively impacted by the precipitation and deposition of asphaltene. Screening methods for determining the stability of asphaltenes in crude oil have
Moammed A. Ahmed +2 more
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Petroleum Exploration and Development, 2022 This paper investigates the deposition of asphaltenes in the porous medium of the studied field in Russia and predicts production profiles based on uncertainty evaluation.
D S TANANYKHIN +3 more
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Asphaltene Precipitation Modeling of Sadi Formation in Halfaya Iraqi Oil Field
Journal of Engineering, 2019 Asphaltene is a component class that may precipitate from petroleum as a highly viscous and sticky material that is likely to cause deposition problems in a reservoir, in production well, transportation, and in process plants.
Ali Anwar Ali +2 more
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The role of direct asphaltene inhibitors on asphaltene stabilization during gas injection [PDF]
, 2020 There are a large number of investigations, which evaluate the impact of the liquid-based inhibitors on the asphaltene stabilization. In those studies, a specific volume of inhibitor was added to the oil sample and the asphaltene precipitation is then ...
Gandomkar, Asghar, Nasriani, Hamid Reza
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Energies, 2023 Some oil wells in the Tahe oilfield have been reported to produce extremely heavy oil due to asphaltene deposition. To enhance the flow of crude oil through the wellbore, engineers adopted the use of light oil from nearby wells to dissolve the heavy ...
Zuguo Yang +6 more
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Oil & Gas Science and Technology, 2017 The effects of aluminum oxide nanoparticles on the removal of asphaltenes from an Iranian crude oil (Soroush) using a ceramic membrane with pore size of 0.2 µm were investigated.
Rezakazemi Mashallah +3 more
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