1. Influence of Surfactant Type, Surfactant Concentration, and Salinity on Interfacial Tension of a Brine/Live Oil/Surfactant Fluid System: A Case Study of Iranian Asmari Oil Reservoir

Mohammad Saki; Ali Reza Khaz'al

Volume 6, Issue 1 , Winter 2017, , Pages 1-16

http://dx.doi.org/10.22050/ijogst.2017.44341

Abstract
  The chemical surfactant flooding can mobilize the trapped oil by lowering the interfacial tension between oil and brine and in some cases altering the reservoir rock wettability. In this work, the effect of surfactants on oil/brine interfacial tension was experimentally investigated. First, the effect ...  Read More

2. Simulation and Assessment of Surfactant Injection in Fractured Reservoirs: A Sensitivity Analysis of some Uncertain Parameters

Mohammad Hasan Badizad; Ahmad Reza Zanganeh; Amir Hossein Saeedi Dehaghani

Volume 5, Issue 1 , Winter 2016, , Pages 13-26

http://dx.doi.org/10.22050/ijogst.2016.13826

Abstract
  Fracture reservoirs contain most of the oil reserves of the Middle East. Such reservoirs are poorly understood and recovery from fractured reservoirs is typically lower than those from conventional reservoirs. Many efforts have been made to enhance the recovery and production potential of these reservoirs. ...  Read More

3. Stability of Silica Nanoparticle Dispersion in Brine Solution: An Experimental Study

Jaber Esmaeeli Azadgoleh; Riyaz Kharrat; Nasim Barati; Ameneh Sobhani

Volume 3, Issue 4 , Autumn 2014, , Pages 26-40

http://dx.doi.org/10.22050/ijogst.2014.7485

Abstract
  Nanotechnology has various applications in oil and gas industry such as enhanced oil recovery (EOR). The main challenge in using nanoparticles in EOR processes is their stability in harsh conditions such as high temperature, high pressure, and intermediate to high salinity. However, most of the recent ...  Read More

4. A Laboratory Investigation into Wettability Alteration of Carbonate Rock by Surfactants: The Effect of Salinity, pH, and Surfactant Concentration

Mohsen Seid Mohammadi; Jamshid Moghadasi; Amin Kordestany

Volume 3, Issue 3 , Summer 2014, , Pages 1-10

http://dx.doi.org/10.22050/ijogst.2014.6617

Abstract
  Wettability alteration is an important method for increasing oil recovery from oil-wet carbonate reservoirs. Chemical agents like surfactants are known as wettability modifiers in carbonate systems. Oil can be recovered from initially oil-wet carbonate reservoirs by wettability alteration from oil-wet ...  Read More