Results 21 to 30 of about 1,915 (207)

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

Molecular composition of asphaltene in wellbore blockage on the southern margin of Junggar Basin

open access: yesShiyou shiyan dizhi, 2022
Fourier Transform Ion Cyclotron Resonance Mass Spectrometry (FT-ICR MS) was employed to analyze the compositional differences of asphaltene of oil and blockage extracts of well Gaotan 1 on the southern margin of Junggar Basin.
Erting LI   +7 more
doaj   +1 more source

Asphaltene precipitation trend and controlling its deposition mechanism

open access: yesNatural Gas Industry B, 2022
The B oilfield is a large integrated oilfield in the Middle East. Asphaltene precipitates from crude oil and deposits on solid surfaces, affording considerable blockages of the formation, wellbore, and production equipment.
Heng Xue   +6 more
doaj   +1 more source

Improved thermodynamic investigation of asphaltene precipitation

open access: yes, 2023
Asphaltenes are analogous to the “cholesterol” of crude oils, so they may cause significant flow assurance problems to various oil and gas processes and negatively affect the economy of the oil recovery, transportation, and processing by increasing ...
Alimohammadi, Sepideh
core   +1 more source

A Novel Technique for Determination of the Onset of Alkane Induced Asphaltene Precipitation Using Accurate Density Measurements [PDF]

open access: yesIranian Journal of Oil & Gas Science and Technology, 2016
Onset of asphaltene precipitation is the key parameter in dealing with asphaltene problems because it is the starting point of the asphaltene separation from the solution.
Mahdi Kalantari Meybodi   +1 more
doaj   +1 more source

Influence of asphaltene inhibitors on asphaltene deposition in the porous media [PDF]

open access: yes, 2021
351-355This article deals with organic asphaltene deposition in the reservoir rock, for crude oil having high asphaltene content and high apparent viscosity.
Mandal, Arnab   +3 more
core  

Modeling asphaltene precipitation in live crude oil

open access: yes, 2019
The presented data are the data used for modeling asphaltene precipitation in live crude oil by performing CPA-EOS. These data are related to a manuscript entitled "Modeling Asphaltene Precipitation in Live Crude Oil Using Cubic Plus Association (CPA ...
daryasafar, A (via Mendeley Data)
core   +3 more sources

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  

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