Results 101 to 110 of about 7,502 (225)

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

Scientific 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, Behnam Ranjbar, Yousef Kazemzadeh, Farzaneh Aram, Masoud Riazi   +4 more
doaj   +1 more source

A Solution Model for Predicting Asphaltene Precipitation [PDF]

Iranian Journal of Chemistry & Chemical Engineering, 2014
Formation of asphaltene deposition during oil production, processing and synthesis is known as a fundamental problem of petroleum reservoir worldwide. Asphaltene is a petroleum fraction that can lead to increasing the operating costs in these industries.
Mohammad Yazdizadeh, Hessamodin Nourbakhsh, Mohammad Reza Jafari Nasr   +2 more
doaj  

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

Heliyon
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

Asphaltene Predictions Using Screening Methods and Equations of State

, 2018
Asphaltene data for 36 reservoir fluids from different geographical regions has been used to evaluate and compare the ability of four commonly used screening methods and three equations of state to identify fluids likely to present asphaltene problems ...
Henrik Sørensen, Rasmus Risum Boesen, Karen Schou Pedersen   +2 more
core   +1 more source

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

Scientific Reports
Asphaltene precipitation in oil reservoirs, well equipment, and pipelines reduces production, causing pore blockage, wettability changes, and decreased efficiency.
Ali Shadervan, Arezou Jafari, Alireza Teimouri, Reza Gharibshahi, Amir Hossein Saeedi Dehaghani   +4 more
doaj   +1 more source

New Insights into the Mitigation of Asphaltene Deposition and the Utilization of Asphaltene Deposits

, 2019
Asphaltene deposition is an ongoing flow assurance problem in the oil and gas industry that is associated with huge economic loss. Different aspects to this problem which includes asphaltene stability, asphaltene deposition and asphaltene ...
Khaleel, Aisha
core  

Modeling of asphaltene precipitation and arterial deposition

, 2010
The potential problem produced by asphaltene deposition during oil production has motivated the development of several experimental techniques and theoretical models, trying to understand and predict the asphaltene behavior.
Vargas Arreola, Francisco Manuel
core  

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

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), Jorge A. Orrego-Ruiz (1354728), Christian Guerrero-Benavides (14101943), Ivan Moncayo-Riascos (1388064), Fernando A. Rojas-Ruiz (3152757), Wilson A. Cañas-Marín (14101952), Óscar Ramírez-Jaramillo (14101949), Cristiam Cundar (11920322), Raul Osorio Gallego (14101955)   +8 more
core   +1 more source

Controlled delivery and release of asphaltene inhibitors [PDF]

, 2019
Asphaltene is a poly-disperse distribution of the heaviest and most polarizable fraction of crude oil. The asphaltene aggregation and subsequent precipitation in nonpolar media may have a profound effect on plugging wellbores and production equipment ...
Alhreez, Mahmoud Kamel Getan
core  

Modeling of Asphaltene Precipitation and Deposition

, 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