Results 31 to 40 of about 1,919 (208)

Experimental study of asphaltene accumulation in a sandstone core plug [PDF]

open access: yes, 2021
Hydrocarbon production leads to the disturbance of several thermodynamic equilibriums including the destabilization of crude oil. Asphaltenes precipitation, aggregation and deposition inside the hydrocarbon reservoirs remains challenging issue due to the
Lo, Papa A.
core  

Rapid Heterogeneous Asphaltene Precipitation with Dispersed Solids [PDF]

open access: yes, 2018
Inorganic solids are often present in real heavy oil systems, but are typically absent in asphaltene laboratory studies. For the first time, we investigate the influence of inorganic solids on the kinetic precipitation of asphaltenes.
Samson Ng (5391731)   +3 more
core   +1 more source

Long-Time Kinetic Impact on Key Factors Affecting Asphaltene Precipitation [PDF]

open access: yes, 2022
The employment of predictive techniques combining kinetic and thermodynamic analyses is the succinct solution to effectively control asphaltene precipitation during crude oil production.
Ato Kwamena Quainoo   +5 more
core   +2 more sources

Asphaltene Precipitation Modeling of Sadi Formation in Halfaya Iraqi Oil Field

open access: yesJournal 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
doaj   +1 more source

Influence of asphaltene deposition on oil seepage characteristics

open access: yes地质科技通报, 2021
Asphaltene deposition not only damages reservoir physical properties, but also affects fluid saturation distribution and seepage characteristics.The oil-water, oil-gas and three-phase relative permeability curves with or without asphaltene deposition ...
Xinwen Li, Guowei Zhang
doaj   +1 more source

Effects of hydrophobic CaO and SiO2 nanoparticles on Asphaltene Precipitation Envelope (APE): an experimental and modeling approach

open access: yesOil & Gas Science and Technology, 2018
An experimental and modeling approach was developed in this research to investigate the effects of CO2, new synthesized CaO and commercial SiO2 nanoparticle concentrations on the Asphaltene Precipitation Envelope (APE).
Ahmadi Yaser, Aminshahidy Babak
doaj   +1 more source

Prediction of asphaltene precipitation upon injection of various gases at near-wellbore conditions: A simulation study using PC-SAFT EoS

open access: yesOil & Gas Science and Technology, 2019
The depletion of oil reservoirs and increased global oil demand have given impetus to employ various secondary and tertiary oil recovery methods. Gas injection is widely used in both secondary and tertiary modes, though the major problem associated with ...
Mahmoudvand Saba   +3 more
doaj   +1 more source

Asphaltene Precipitation/Deposition Estimation and Inhibition through Nanotechnology: A Comprehensive Review

open access: yesEnergies, 2023
Asphaltene precipitation/deposition is considered a problem of formation damage, which can reduce the oil recovery factor. In addition, asphaltenes can be deposited in pipelines and surface installations, causing serious complications in guaranteeing ...
Camilo Andrés Guerrero-Martin   +8 more
doaj   +1 more source

Reversibility and inhibition of asphaltene precipitation in Brazilian crude oils [PDF]

open access: yes, 2015
A fundamental understanding of the aggregation and precipitation of asphaltenes in petroleum crudes is important for the development of preventive and curative measures for the potential problem of asphaltene deposition occurring during production ...
Mohamed, RS   +4 more
core   +1 more source

A Novel Method for Mitigation of Asphaltene Deposition in the Wellstring [PDF]

open access: yesIranian 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
doaj  

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