Results 111 to 120 of about 7,517 (225)

Influencing mechanisms of solid-phase asphaltene precipitation in crude oil of Yongjin Oil Field, Junggar Basin

open access: yesShiyou shiyan dizhi
Solid-phase asphaltene precipitation and deposition, commonly occurring during reservoir development, lead to reservoir damage and production well blockage, seriously affecting crude oil exploitation and reducing economic efficiency.
Yang YANG   +6 more
doaj   +1 more source

Integrated Machine Learning Model for Predicting Asphaltene Damage Risk and the Asphaltene Onset Pressure [PDF]

open access: yes
Asphaltene precipitation can promote a drastic reduction in oil production because of asphaltene precipitation and deposition damage. Therefore, screening models to predict the risk of asphaltene damage and equations of state (EoS) to predict the ...
Juliana Giraldo (14101946)   +8 more
core   +1 more source

Modeling of Asphaltene Precipitation and Deposition [PDF]

open access: yes, 2017
The tendency of Asphaltene to deposit and block tubing can potentially lead to production loss and significant cost of remediation. Unlike other deposits, the deposition behavior of Asphaltene is still not fully understood and is hindered by asphaltene ...
Al Hammadi, Ali AbdulKareem
core  

Investigation of Asphaltene Stability in the Iranian Crude Oils [PDF]

open access: yesIranian Journal of Chemical Engineering, 2008
The influence of different factors on the asphaltene stability in three iranian crude oils was evaluated. Compositional studies and structural characterization of resins and asphaltenes were carried out in order to study a possible relationship between ...
doaj  

Research Progress in Nanoparticle Inhibitors for Crude Oil Asphaltene Deposition

open access: yesMolecules
Currently, the alteration of external factors during crude oil extraction easily disrupts the thermodynamic equilibrium of asphaltene, resulting in the continuous flocculation and deposition of asphaltene molecules in crude oil.
Shuangchun Yang   +4 more
doaj   +1 more source

Simulation of asphaltene deposition during CO₂ flooding [PDF]

open access: yes, 2011
textThis Thesis presents the results of phase behavior calculations and simulation of asphaltene precipitation, flocculation, and deposition in five Middle-Eastern wells from different fields, based on a reliable experimental data provided for this ...
Al Qasim, Abdulaziz Salem
core  

Investigating the mechanism of interfacial tension reduction through the combination of low-salinity water and bacteria

open access: yesScientific Reports
In the enhanced oil recovery (EOR) process, interfacial tension (IFT) has become a crucial factor because of its impact on the recovery of residual oil.
Arastoo Abdi   +4 more
doaj   +1 more source

Exploring the Effect of Relaxation Time, Natural Surfactant, and Potential Determining Ions (Ca2+, Mg2+, and SO42−) on the Dynamic Interfacial Tension Behavior of Model Oil-Brine Systems

open access: yesHeliyon
This study examined how the concentration of asphaltene and divalent ions in various salinities affects the interfacial tension (IFT) between a model oil/brine using the pendant drop method. The oleic phase consisted of a mixture of toluene and n-heptane
Amir Mohammadi, Mahsa Parhizgar Keradeh
doaj   +1 more source

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

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   +1 more source

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