Results 1 to 10 of about 781 (132)

Modelling the effect of the inhibitors on asphaltene precipitation using Flory–Huggins theory [PDF]

open access: yesScientific Reports, 2022
Due to the technical, environmental and economic problems caused by asphaltene precipitation, such as oil production reduction, well shut-ins and the necessity of EOR usage, the prediction of asphaltene precipitation seems to be vital.
Farzaneh Eskini   +2 more
doaj   +2 more sources

Predicting asphaltene precipitation during natural depletion of oil reservoirs by integrating SARA fractions with advanced intelligent models [PDF]

open access: yesScientific Reports
Asphaltene precipitation during natural depletion can lead to substantial issues in oil transport and production systems, requiring close assessment of crude oil stability through thermodynamic and structural factors.
Behnam Amiri-Ramsheh   +3 more
doaj   +2 more sources

Mechanistic understanding of asphaltene precipitation and oil recovery enhancement using SiO2 and CaCO3 nano-inhibitors [PDF]

open access: yesScientific Reports
Asphaltene precipitation in oil reservoirs, well equipment, and pipelines reduces production, causing pore blockage, wettability changes, and decreased efficiency.
Ali Shadervan   +4 more
doaj   +2 more sources

White-box modeling of asphaltene precipitation during natural depletion of oil reservoirs [PDF]

open access: yesScientific Reports
Asphaltene precipitation and deposition pose significant challenges in the oil industry, leading to well blockage, formation damage, impairment of process equipment, and reduced reservoir permeability, which ultimately affect oil production and economic ...
Sara Sahebalzamani   +4 more
doaj   +2 more sources

An innovative technique and laboratory protocol for CO2 storage in water disposal wells and monitoring asphaltene deposition [PDF]

open access: yesScientific Reports
Injecting CO2 into water-disposal wells is a promising strategy for geological carbon storage. However, this process can destabilize asphaltenes in residual oil blobs—primarily of the emulsified type – trapped within trapped in the porous rock, leading ...
Ehsan Jafarbeigi, Shahab Ayatollahi
doaj   +2 more sources

An Investigation of the Asphaltene Effect on Wax Precipitation of Iran Asmari Reservoir Dead Crude Oil [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2023
Wax and asphaltene precipitations cause many problems and high costs in the petroleum industry; therefore, the significance of studying these depositions' behavior is considerable.
Elnaz Khodapanh   +2 more
doaj   +1 more source

Investigation of Asphaltene Precipitation Using Response Surface Methodology Combined with Artificial Neural Network [PDF]

open access: yesJournal of Chemical and Petroleum Engineering, 2019
The precipitation of asphaltene, one of the components of oil, in reservoirs, transfer lines, and equipment causes many problems. Accordingly, researchers are prompted to determine the factors affecting asphaltene precipitation and methods of avoiding ...
Zeinab Hosseini-dastgerdi   +1 more
doaj   +3 more sources

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

Asphaltene Deposition during CO2 Flooding in Ultralow Permeability Reservoirs: A Case Study from Changqing Oil Field

open access: yesGeofluids, 2021
Asphaltene deposition is a common phenomenon during CO2 flooding in ultralow permeability reservoirs. The deposited asphaltene occupies the pore volume and decreases permeability, resulting in serious formation damage and pore well productivity.
Li Rong-tao   +6 more
doaj   +1 more source

Asphaltene Precipitation Investigation Using a Screening Techniques for Crude Oil Sample from the Nahr-Umr Formation/Halfaya Oil Field

open access: yesIraqi 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
doaj   +1 more source

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