Asphaltene Deposition during CO2 Injection and Pressure Depletion: A Visual Study

P Zanganeh, S Ayatollahi, A Alamdari, A Zolghadr… - Energy & …, 2012 - ACS Publications
Carbon dioxide miscible flooding has become a popular method for Enhanced Oil Recovery
(EOR) because it not only efficiently enhances oil recovery but also considerably reduces …

Nanotechnology-assisted EOR techniques: New solutions to old challenges

S Ayatollahi, MM Zerafat - SPE international oilfield nanotechnology …, 2012 - onepetro.org
Abstract Enhanced Oil Recovery techniques are gaining more attention worldwide as the
proved oil reserves are declining and the oil price is hiking. Although many giant oil …

Predictive modeling of addiction lapses in a mobile health application

MY Chih, T Patton, FM McTavish, AJ Isham… - Journal of substance …, 2014 - Elsevier
The chronically relapsing nature of alcoholism leads to substantial personal, family, and
societal costs. Addiction-comprehensive health enhancement support system (A-CHESS) is …

Effect of resins on asphaltene deposition and the changes of surface properties at different pressures: a microstructure study

F Soorghali, A Zolghadr, S Ayatollahi - Energy & fuels, 2014 - ACS Publications
Asphaltene deposition has hindered oil production from asphaltenic oil reservoirs through
deposition in reservoir rock and surface facilities. This paper investigates the effect of resin …

Asphaltene deposition in carbonate rocks: experimental investigation and numerical simulation

S Kord, R Miri, S Ayatollahi, M Escrochi - Energy & fuels, 2012 - ACS Publications
Oil production from asphaltenic oil reservoirs has always encountered difficulties, such as
plugging and unpredictable fluid properties. To physically recognize the aspects of …

Bayesian network analysis as a tool for efficient EOR screening

MM Zerafat, S Ayatollahi, N Mehranbod… - SPE Asia Pacific …, 2011 - onepetro.org
The main tool for screening of EOR techniques is generally based on the criteria presented
in a variety of tables and graphs given in the literature. These data are derived from the …

Perspectives on Microfluidics for the Study of Asphaltenes in Upstream Hydrocarbon Production: A Minireview

MK Sharma, RL Hartman - Energy & Fuels, 2022 - ACS Publications
The utilization of microfluidics has generated deep insights into asphaltene precipitation
mechanisms and oil–water emulsion stabilization. Agglomeration and precipitation of …

Mechanistic study to investigate the effects of different gas injection scenarios on the rate of asphaltene deposition: An experimental approach

H Dashti, P Zanganeh, S Kord, S Ayatollahi, A Amiri - Fuel, 2020 - Elsevier
Asphaltene deposition during enhanced oil recovery (EOR) processes is one of the most
problematic challenges in the petroleum industry, potentially resulting in flow blockage. Our …

Monodisperse thermodynamic model based on chemical+ flory–huggins polymer solution theories for predicting asphaltene precipitation

AH Mohammadi, A Eslamimanesh… - Industrial & engineering …, 2012 - ACS Publications
Asphaltene precipitation is traditionally modeled using the Flory–Hüggins polymer solution
theory. The existing thermodynamic models, generally, do not take into account the …

Estimation of asphaltene precipitation in light, medium and heavy oils: experimental study and neural network modeling

S Alimohammadi, J Sayyad Amin… - Neural Computing and …, 2017 - Springer
Asphaltene can precipitate in oil reservoirs as a result of natural depletion and/or gas
injection crippling the oil production performance. Most of the conventional models for …