Petroleum Engineering – Reservoir
1. Characterization of Liquid Bridge in Gas/Oil Gravity Drainage in Fractured Reservoirs

Behrouz Harimi; Mohsen Masihi; Mohammad Hosein Ghazanfari

Volume 8, Issue 2 , Spring 2019, , Pages 73-91

http://dx.doi.org/10.22050/ijogst.2018.140366.1465

Abstract
  Gravity drainage is the main mechanism which controls the oil recovery from fractured reservoirs in both gas-cap drive and gas injection processes. The liquid bridge formed between two adjacent matrix blocks is responsible for capillary continuity phenomenon. The accurate determination of gas-liquid ...  Read More

2. 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

3. An Estimation of Wave Attenuation Factor in Ultrasonic Assisted Gravity Drainage Process

Behnam Keshavarzi; Mohammad Javad Shojaei; Mohammad Hossein Ghazanfari; Cyrus Ghotbi

Volume 3, Issue 1 , Winter 2014, , Pages 22-33

http://dx.doi.org/10.22050/ijogst.2014.5798

Abstract
  It has been proved that ultrasonic energy can considerably increase the amount of oil recovery in an immiscible displacement process. Although many studies have been performed on investigating the roles of ultrasonic waves, based on the best of our knowledge, little attention has been paid to evaluate ...  Read More

4. An Experimental Study of CO2-low Salinity Water Alternating Gas Injection in Sandstone Heavy Oil Reservoirs

Hadi Zolfaghari; Alireza Zebarjadi; Omid Shahrokhi; Mohammad Hosein Ghazanfari

Volume 2, Issue 3 , Summer 2013, , Pages 37-47

http://dx.doi.org/10.22050/ijogst.2013.3643

Abstract
  Several studies have shown that oil recovery significantly increased by low salinity water flooding (LSWF) in sandstones. However, mechanism of oil recovery improvement is still controversial. CO2 that develops buffer in presence of water is expected as a deterrent factor in LSWF efficiency based on ...  Read More