Results 21 to 30 of about 710,697 (204)

Asphaltene Deposition Modeling during Natural Depletion and Developing a New Method for Multiphase Flash Calculation [PDF]

open access: yesIranian Journal of Oil & Gas Science and Technology, 2016
The specific objective of this paper is to develop a fully implicit compositional simulator for modeling asphaltene deposition during natural depletion.
Gholamreza Fallahnejad, Riyaz Kharrat
doaj   +1 more source

Lubricant-Impregnated Surfaces for Mitigating Asphaltene Deposition [PDF]

open access: yesACS Applied Materials & Interfaces, 2020
Asphaltenes are heavy aromatic components of crude oil. Their complex chemical makeup-an aromatic core surrounded by aliphatic side chains-enables them to adhere to most surfaces. Their buildup in pipes can result in clogging and lead to interruption of production operations and expensive mechanical cleaning.
Henri-Louis Girard   +5 more
openaire   +3 more sources

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  

Investigation of the influences of asphaltene deposition on oilfield development using reservoir simulation

open access: yesPetroleum 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
doaj   +1 more source

Spatially Coupled Cl<sub>2</sub> Confinement and Activation at Curved Ni Single-Atom Sites for Highly Reversible Li-Cl<sub>2</sub> Batteries. [PDF]

open access: yesAngew Chem Int Ed Engl
A robust cathode featuring curvature‐engineered Ni single‐atoms anchored within hierarchical pores effectively confines Cl2 and accelerates Cl0/Cl−1 redox kinetics. This synergistic architecture unlocks the potential of Li‐Cl2 secondary batteries with an unprecedented 1×106 mAh g−1 cumulative capacity, all‐climate resilience (–40°C to + 70°C), and 7.65
Xie M   +11 more
europepmc   +2 more sources

Asphaltene deposition in oil sector:A comprehensive review

open access: yes, 2022
Asphaltene science is important in petroleum industry due to its effect on flow assurance and downstream facility equipment. Asphaltene is defined operationally and not as class compounds.
Bani Saad, Alkhatab, Liu, Lande
core   +2 more sources

Simulation of the Asphaltene Deposition Rate in Oil Wells under Different Multiphase Flow Condition

open access: yesEnergies, 2023
As the wellbore pressure falls below the bubble point pressure, the light components in the oil phase are liberated, forming additional vapor, and the single-phase flow becomes a gas–liquid two-phase flow.
Xiaoming Wang   +6 more
doaj   +1 more source

Modeling of asphaltene particle deposition from turbulent oil flow in tubing: Model validation and a parametric study

open access: yesPetroleum, 2016
The deposition of asphaltenes on the inner wall of oil wells and pipelines causes flow blockage and significant production loss in these conduits. The major underlying mechanism(s) for the deposition of asphaltene particles from the oil stream are still ...
Peyman Kor, Riyaz Kharrat
doaj   +1 more source

Tetraalkylammonium and phosphonium salt for asphaltene dispersion; experimental studies on interaction mechanisms

open access: yesEgyptian Journal of Petroleum, 2022
Asphaltenes deposition is one of the most severe problems in the petroleum industry, imposing high costs on oil producer companies. The use of chemical dispersants reduces the risk of asphaltene deposition.
Shirin Baghersaei   +3 more
doaj   +1 more source

Dispersion potential of asphaltene in live oil by nanoparticles

open access: yes地质科技通报, 2023
Objective In order to clarify the effect and mechanism of nanoparticles on inhibiting asphaltene precipitation in formation live oil formation under high temperature and high pressure.
Zhuanying Zhan, Jun Ni
doaj   +1 more source

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