Petroleum Engineering
1. Mechanistic Study of Effect of Ultrasonic Radiation on Asphaltenic Crude Oils

Seyed Mohammadreza Mousavi; Saeed Jafari; Mahin Schaffie; Saeid Norouzi Apourvari

Volume 9, Issue 4 , Autumn 2020, , Pages 45-67

http://dx.doi.org/10.22050/ijogst.2020.246788.1562

Abstract
  Ultrasonic irradiation is a new, economic, and environmentally friendly technique for treating asphaltene aggregation in petroleum industry. In this study, the effect of ultrasonic radiation on asphaltene formation is investigated using conventional optical microscopy, viscosity measurement, and Fourier-transform ...  Read More

Chemical Engineering
2. An Experimental Investigation and Prediction of Asphaltene Deposition during Laminar Flow in the Pipes Using a Heat Transfer Approach

Farhad Salimi; Shahab Ayatollahi; Mohsen Vafaie Seftie

Volume 6, Issue 2 , Spring 2017, , Pages 17-32

http://dx.doi.org/10.22050/ijogst.2017.47414

Abstract
  In this study, asphaltene deposition from crude oil has experimentally and theoretically been studied using a test loop and an accurate temperature monitoring during a laminar flow. The effects of oil velocity and surface temperature on the thickness of asphaltene deposition were investigated. The results ...  Read More

3. A Novel Technique for Determination of the Onset of Alkane Induced Asphaltene Precipitation Using Accurate Density Measurements

Mahdi Kalantari Meybodi; Jamshid Moghadasi

Volume 5, Issue 4 , Autumn 2016, , Pages 25-35

http://dx.doi.org/10.22050/ijogst.2016.41573

Abstract
  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. In this study, a new technique is provided based on the experimental observations for the determination of the onset of asphaltene ...  Read More

4. Assessing the Asphaltene Adsorption on Metal Oxide Nanoparticles

Fatemeh Amin; Ali Reza Solaimany Nazar

Volume 5, Issue 3 , Summer 2016, , Pages 62-72

http://dx.doi.org/10.22050/ijogst.2015.38531

Abstract
  The Taguchi design of experiments (DOE) approach is adopted here to evaluate the impact ofeffective factors such as nanoparticles type, nanoparticles to model solution mass ratio, asphaltenestructure, and temperature on asphaltene adsorption equilibrium. Herein, the toluene-asphaltenesolution model is ...  Read More