Research Paper
2. A New Cementation Factor Correlation in Carbonate Parts of Oil Fields in South-West Iran

Saeed Rafiee; Abdolnabi Hashemi; Mohammad Shahi

Volume 3, Issue 2 , Spring 2014, Pages 1-17

http://dx.doi.org/10.22050/ijogst.2014.6030

Abstract
  Petrophysical parameters such as porosity, water and oil saturations, formation resistivity factor, etc. describe the storage capability of the porous media or the capacity of rocks to hold fluids. The modified Archie’s equation    . / . , also called the saturation equation, is used ...  Read More

Research Paper
3. An Experimental Investigation of Wettability Alteration in Carbonate Reservoir Using γ-Al2O3 Nanoparticles

Mohsen Seid Mohammadi; Jamshid Moghadasi; Saeed Naseri

Volume 3, Issue 2 , Spring 2014, Pages 18-26

http://dx.doi.org/10.22050/ijogst.2014.6034

Abstract
  Wettability alteration is one of the most important methods for oil recovery from sandstone and carbonate reservoirs. The effects of salinity, pH, temperature, and chemicals such as surfactants and fatty acids on the alteration of the wettability were described in previous studies. In recent years, attention ...  Read More

Research Paper
4. An Experimental Investigation of the Catalytic Effect of Fe2O3 Nanoparticle on Steam Injection Process of an Iranian Reservoir

Sahar Afzal; Mohammad Nikookar; Mohammad Reza Ehsani; Emad Roayaei

Volume 3, Issue 2 , Spring 2014, Pages 27-36

http://dx.doi.org/10.22050/ijogst.2014.6033

Abstract
  Nanotechnology has the potential to introduce revolutionary changes to several areas of oil and gas industry such as exploration, production, enhanced oil recovery, and refining. In this paper, the effect of different concentrations of Fe2O3 nanoparticles as a catalyst on the heavy oil viscosity at various ...  Read More

5. An Experimental Examination of Adsorption Phenomenon in Foamassisted Water Alternative Gas: The Effect of Injection Rate

Mohammad Amin Safarzadeh; Seyyed Alireza Tabatabaei Nezhad; Eghbal Sahraei; Mehdi Mohammad Salehi

Volume 3, Issue 2 , Spring 2014, Pages 37-50

http://dx.doi.org/10.22050/ijogst.2014.6035

Abstract
  The main factor affecting the economics of foam-assisted water alternative gas (FAWAG) process is the loss of foaming agent by adsorption onto reservoir rocks. In this study, the effects of phases, surfactant concentration, salinity, adsorbents, and sacrificial agent on adsorption density were investigated ...  Read More

Research Paper
6. Prediction of Kinematic Viscosity of Petroleum Fractions Using Artificial Neural Networks

Bizhan Khosronezhad Gheshlaghi; Mohammad Reza Dehghani; Hossein Parhizgar

Volume 3, Issue 2 , Spring 2014, Pages 51-65

http://dx.doi.org/10.22050/ijogst.2014.6036

Abstract
  In this work, artificial neural network (ANN) was utilized to develop a new model for the prediction of the kinematic viscosity of petroleum fractions. This model was generated as a function of temperature (T), normal boiling point temperature (Tb), and specific gravity (S). In order to develop the new ...  Read More

Research Paper
7. Power Consumption Minimization of Khormoj Compressor Station

Javid Haddad; Reza Mosayebi Behbahani; Mohammadreza Shishesaz

Volume 3, Issue 2 , Spring 2014, Pages 66-78

http://dx.doi.org/10.22050/ijogst.2014.6037

Abstract
  Arguably, the natural gas transmission pipeline infrastructure in Iran represents one of the largest and most complex mechanical systems in the world. The optimization of large gas trunk lines known as IGAT results in reduced fuel consumption or higher capability and improves pipeline operation. In the ...  Read More