Research Paper
2. Characterization of Reservoir Heterogeneity by Capacitance-resistance Model in Water-flooding Projects

Seyed Ehsan Eshraghi; Mohammad Reza Rasaei; Peyman Pourafshary; Amir Salar Masoumi

Volume 5, Issue 3 , Summer 2016, Pages 1-13

http://dx.doi.org/10.22050/ijogst.2016.38522

Abstract
  Tedious calculations and simulations are needed to obtain an efficient production scenario and/orproper field development strategy. Capacitance-resistance model (CRM) is proved to be a fastreservoir simulation tool using just the field-available data of production and injection rates. Thisapproach sets ...  Read More

Research Paper
3. An Influence of Polymer-Alkaline and Nanoparticles as Chemical Additives on the Immiscible Displacement and Phase Relative Permeability

Elham Mortazavi; Mohsen Masihi; Mohammad Hosein Ghazanfari

Volume 5, Issue 3 , Summer 2016, Pages 14-31

http://dx.doi.org/10.22050/ijogst.2016.38523

Abstract
  In this study, a chemical additive made by a combination of polymer, alkaline, and silica nanoparticles is used to control the oil recovery and relative permeability curves. Various parametersincluding the type and concentration of polymer, alkaline, and nanosilica particles have been studied.To evaluate ...  Read More

4. A Consequence Analysis of the Explosion of Spherical Tanks Containing Liquefied Petroleum Gas (LPG)

Hadi Zareei; Mohammadreza Khosravi Nikou; Ahmad Shariati

Volume 5, Issue 3 , Summer 2016, Pages 32-44

http://dx.doi.org/10.22050/ijogst.2016.38529

Abstract
  A consequence analysis was performed in one of the gas refineries in Iran to investigate the risks andpotential losses resulted from accidents. Specifically, the consequences of an explosion in LPGspherical tanks were modeled using PHAST and MATLAB software. In this paper, three methods ofcalculation ...  Read More

Research Paper
5. Exergoeconomic Evaluation of LNG and NGL Co-production Process Based on the MFC Refrigeration Systems

Hojat Ansarinasab; Mahmoud Afshar; Mehdi Mehrpooya

Volume 5, Issue 3 , Summer 2016, Pages 45-61

http://dx.doi.org/10.22050/ijogst.2016.38530

Abstract
  In this paper, exergy and exergoeconomic analysis is performed on the recently proposed process forthe coproduction of liquefied natural gas (LNG) and natural gas liquids (NGL) based on the mixedfluid cascade (MFC) refrigeration systems, as one of the most important and popular natural gasliquefaction ...  Read More

Research Paper
6. 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

Research Paper
7. The Effect of Simultaneous Incorporation of PTFE Nanoparticles and Carbon Nanotubes on the Tribological Behavior of Ni-P Coating

Hamid Rahmati; Farzad Mahboobi

Volume 5, Issue 3 , Summer 2016, Pages 73-81

http://dx.doi.org/10.22050/ijogst.2016.38532

Abstract
  In some engineering fields, wear resistance and a low friction coefficient are required at the sametime. In this research, PTFE nanoparticles and carbon nanotubes were co-deposited within Ni-Pmatrix to obtain an Ni-P-PTFE-CNT hybrid coating for wear resistance and a low friction coefficient.The tribological ...  Read More