Petroleum Engineering
Modeling Critical Flow through Choke for a Gas-condensate Reservoir Based on Drill Stem Test Data

Ahmad Lak; Reza Azin; Shahriar Osfouri; Rouhollah Fatehi

Volume 6, Issue 3 , July 2017, , Pages 29-40

https://doi.org/10.22050/ijogst.2017.69063.1371

Abstract
  Gas-condensate reservoirs contain hydrocarbon fluids with characteristics between oil and gas reservoirs and a high gas-liquid ratio. Due to the large gas-liquid ratio, wellhead choke calculations using the empirical equations such as Gilbert may contain considerable error. In this study, using drill ...  Read More

Petroleum Engineering
An Investigation of Optimum Miscible Gas Flooding Scenario: A Case Study of an Iranian Carbonates Formation

Mohsen Montazeri; Saeid Sadeghnejad

Volume 6, Issue 3 , July 2017, , Pages 41-54

https://doi.org/10.22050/ijogst.2017.68920.1370

Abstract
  Gas injection into carbonate formations is one of the most important activities to protect oil reserves that can guarantee a steady production. On-time injection of enough gas can result in the recovery of billions barrels of oil. In addition, it can preserve a huge amount of gas for the next generations. ...  Read More

Petroleum Engineering
Sand Production Control in Sandstone Reservoirs Using a Modified Urea-formaldehyde Re

Mohammad reza Talaghat; Ahmad Reza Bahmani

Volume 6, Issue 2 , April 2017, , Pages 33-45

https://doi.org/10.22050/ijogst.2017.47418

Abstract
  Several techniques have been used for sand production control in sandstone reservoirs.The main objective of this research is to present a suitable resin to be used as a consolidation agent in oil reservoirs. To achieve this purpose, urea-formaldehyde resin, phenol-formaldehyde resin, and modified urea-formaldehyde ...  Read More

Petroleum Engineering
A Pore Scale Evaluation of Produced Biosurfactants for Ex-situ Enhanced Oil Recovery

Mohammad Hossein Shabani; Arezou Jafari; Seyed Mohammad Mousavi

Volume 6, Issue 2 , April 2017, , Pages 75-89

https://doi.org/10.22050/ijogst.2017.47443

Abstract
  Microbial enhanced oil recovery (MEOR) is an economical method used to improve the oil recovery from reservoirs. In the MEOR techniques, by applying different microorganisms, a variety of products such as bioacid, biogas, biosurfactant, and biopolymer are generated, among which biosurfactant, one of ...  Read More