Petroleum Engineering
1. Seismic Attribute Analysis and 3D Model-Based Approach to Reservoir Characterization of “KO” Field, Niger Delta

James Sunday Abe; Kenneth Okosun

Volume 9, Issue 4 , Autumn 2020, , Pages 1-28

http://dx.doi.org/10.22050/ijogst.2020.232984.1550

Abstract
  Modelling involves the use of statistical techniques or analogy data to infill the inter-well volume producing images of the subsurface. Integration of available data sets from “KO” field were used to identify hydrocarbon prospects and by means of interpolation, populate the facies and petrophysical ...  Read More

Petroleum Engineering
2. Application of Bayesian Statistics in Hydraulic Flow Units Modeling and Permeability Prediction (A case study Carbonate Reservoir in SW Iran)

Arian Ahmadi; Mohammad Abdideh

Volume 9, Issue 4 , Autumn 2020, , Pages 29-44

http://dx.doi.org/10.22050/ijogst.2020.225995.1544

Abstract
  < p>The determination of rock types for petrophysical studies has a wide range of applications. It is widely used in drilling, production, and especially in the study and characterization of reservoirs. Zoning of flow units and permeability estimation is one of the challenging tasks of reservoir ...  Read More

Petroleum Engineering
3. Mechanistic Study of Effect of Ultrasonic Radiation on Asphaltenic Crude Oils

Seyed Mohammadreza Mousavi; Saeed Jafari; Mahin Schaffie; Saeid Norouzi Apourvari

Volume 9, Issue 4 , Autumn 2020, , Pages 45-67

http://dx.doi.org/10.22050/ijogst.2020.246788.1562

Abstract
  Ultrasonic irradiation is a new, economic, and environmentally friendly technique for treating asphaltene aggregation in petroleum industry. In this study, the effect of ultrasonic radiation on asphaltene formation is investigated using conventional optical microscopy, viscosity measurement, and Fourier-transform ...  Read More

Petroleum Engineering
4. Screening of Enhanced Oil Recovery Methods in One of Iran’s Offshore Oil Fields

Mehdi Bahari Moghaddam; Mostafa Fathalizade

Volume 9, Issue 4 , Autumn 2020, , Pages 68-84

http://dx.doi.org/10.22050/ijogst.2020.237415.1553

Abstract
  Enhanced oil recovery (EOR) is a vital part of the process of oil production from sandstone and carbonate reservoirs. Maintaining and increasing oil production from many fields require proper selection, design, and implementation of EOR methods. The selection of EOR methods for specific reservoir conditions ...  Read More

Petroleum Engineering
5. Simulation and Economic Evaluation of Polygeneration System for Coproduction of Power, Steam, CH3OH, H2, and CO2 from Flare Gas

Ali Vatani; Mostafa Jafari; Mohammad shahab Deljoo

Volume 9, Issue 4 , Autumn 2020, , Pages 93-114

http://dx.doi.org/10.22050/ijogst.2020.227023.1547

Abstract
  Today, one of the challenging issues all over the world is the appropriate use of flare gases in oil, gas, and petrochemical industries. Burning flare gases having high heating value results in economic losses and the pollution of the environment. There are several methods to use flare gases; the heat ...  Read More

Petroleum Engineering
6. Analyzing Single- and Two-parameter Models for Describing Oil Recovery in Imbibition from Fractured Reservoirs

Mojtaba Ghaedi; Sadegh Ahmadpour

Volume 9, Issue 3 , Summer 2020, , Pages 11-25

http://dx.doi.org/10.22050/ijogst.2020.207829.1524

Abstract
  The imbibition process is known as one of the main production mechanisms in fractured reservoirs where oil/gas-filled matrix blocks are surrounded by water-filled fractures. Different forces such as gravity and capillary play a role in production from a fractured reservoir during imbibition and complicate ...  Read More

Petroleum Engineering
7. Mass Transfer Modeling of CO2 Absorption into Blended Aqueous MDEA–PZ Solution

Fahimeh Mirzaei; Ahad Ghaemi

Volume 9, Issue 3 , Summer 2020, , Pages 77-101

http://dx.doi.org/10.22050/ijogst.2020.222615.1540

Abstract
  In this research, the rate of CO2 absorption into methyl diethanolamine–piperazine (MDEA–PZ) solution was investigated. To model the mass transfer flux in the reactive absorption processes, the dimensionless parameters of the process were obtained using the Buckingham Pi theorem and considering ...  Read More

Petroleum Engineering
8. Identifying Gas-bearing Carbonate Reservoir Using Extended Elastic Impedance

Hessam MansouriSiahgoli; Mohammad Ali Riahi; Bahare Heidari; Reza Mohebian

Volume 9, Issue 3 , Summer 2020, , Pages 102-115

http://dx.doi.org/10.22050/ijogst.2020.218837.1535

Abstract
  It is difficult to identify the carbonate reservoirs by using conventional seismic reflection data, especially in cases where the reflection coefficient of the gas-bearing zone is close to that of the carbonate background. In such cases, the extended elastic impedance (EEI) as a seismic reconnaissance ...  Read More

Petroleum Engineering
9. Implementing Direct and Indirect Wireline Methods in Determination of Total Organic Carbon: A Case Study from a West African Hydrocarbon Field

Amir Gharavi; Mohamed Hassan; Hesam Zarehparvar Ghoochaninejad; John Fianu; Michael Kenomore; Amjad Shah; James Buick

Volume 9, Issue 2 , Spring 2020, , Pages 1-12

http://dx.doi.org/10.22050/ijogst.2020.193179.1512

Abstract
  Since the development bloom in unconventional reservoirs in North America, total organic carbon (TOC) has become a more essential parameter, as the indicator of the efficiency of these reservoirs. In this paper, by using conventional well logs and NMR log data, the TOC content of an unconventional reservoir ...  Read More

Petroleum Engineering
10. A New Methodology to Define Net Pay Zone in Gas Reservoirs

Mehdi Qassamipour; Elnaz Khodapanah; Seyyed Alireza Tabatabaei-Nezhad

Volume 9, Issue 2 , Spring 2020, , Pages 13-30

http://dx.doi.org/10.22050/ijogst.2020.196320.1516

Abstract
  Net pay thickness is defined as that portion of a reservoir which contains economically producible hydrocarbons with today’s technology, prices, and costs. This thickness is a key parameter of the volumetric calculation of in-place hydrocarbons, well test interpretation, and reservoir characterization. ...  Read More

Petroleum Engineering
11. Application of Decline Curve Analysis for Estimating Different Properties of Closed Fractured Reservoirs for Vertical Wells

Amin Daryasafar; Mohammad FathiNasab; Giovanni Da Prat; Riyaz Kharrat

Volume 9, Issue 2 , Spring 2020, , Pages 61-80

http://dx.doi.org/10.22050/ijogst.2017.30498.1275

Abstract
  In this paper, decline curve analysis is used for estimating different parameters of bounded naturally fractured reservoirs. This analysis technique is based on rate transient technique, and it is shown that if production rate is plotted against time on a semi-log graph, straight lines are obtained that ...  Read More

Petroleum Engineering
12. Experimental and Theoretical Investigation of Gelation Time of Nanostructured Polymer Gels by Central Composite Approach

Mohsen Seidmohammadi; Eghbal Sahraei; Behrouz Bayati

Volume 9, Issue 2 , Spring 2020, , Pages 81-92

http://dx.doi.org/10.22050/ijogst.2020.208529.1525

Abstract
  Currently available polymers as a component of in-situ gels are unsuitable for treating high-temperature/high-salinity reservoirs due to their chemical and thermal degradation. In this study, a new copolymer-based gel system including high molecular weight nanostructured polymers (NSPs) was developed ...  Read More

Petroleum Engineering
13. An Experimental Study on Evaluation of Factors Influencing the Viscosity and Viscoelastic Properties of Waxy Crude Oil

Yavar Karimi; Ali Reza Solaimany Nazar

Volume 9, Issue 1 , Winter 2020, , Pages 1-15

http://dx.doi.org/10.22050/ijogst.2019.194137.1513

Abstract
  The influences of several operating factors on the viscosity of the Isfahan refinery waxy crude oil sample are studied through conducting some rheological shear rotational tests. The Taguchi design method is adopted to determine the impact of factors such as shear rate, temperature, cooling rate, wax ...  Read More

Petroleum Engineering
14. A Novel Approach to Obtaining the Optimum Pressure and Stages of Separators

Ali Moazami Goodarzi; Arman Darvish Sarvestani; Ali Hadipour

Volume 9, Issue 1 , Winter 2020, , Pages 33-46

http://dx.doi.org/10.22050/ijogst.2019.153012.1480

Abstract
  Nowadays, the increasing demand for energy in the world is one of the main concerns for energy supply. In fact, the required energy can be obtained by increasing the production rate of fossil fuels such as oil and natural gas. However, improving the efficiency of the equipment and facilities might have ...  Read More

Petroleum Engineering
15. Geochemical Characterization of Kazhdumi Source Rock in the Khaviz Oil Field, Southwest of Iran, Using Rock-Eval Pyrolysis

Mehrbod khalatbari; Mohammadreza Kamali; Mehran Arian; Buyuk Ghorbani

Volume 9, Issue 1 , Winter 2020, , Pages 85-93

http://dx.doi.org/10.22050/ijogst.2019.187983.1508

Abstract
  The Khaviz oil field located in Dezful embayment is one of Iran’s southwest oil fields. In this study, a total of 28 cutting samples from Kazhdumi formation (well No. KZ1, Khaviz oil field) were subject to geochemical investigation using Rock-Eval pyrolysis for the first time. The results of pyrolysis ...  Read More

Petroleum Engineering
16. Selection of an Optimal Hybrid Water/Gas Injection Scenario for Maximization of Oil Recovery Using Genetic Algorithm

Shahin Kord; Omid Ourahmadi; Arman Namaee-Ghasemi

Volume 9, Issue 1 , Winter 2020, , Pages 94-111

http://dx.doi.org/10.22050/ijogst.2018.108293.1423

Abstract
  Production strategy from a hydrocarbon reservoir plays an important role in optimal field development in the sense of maximizing oil recovery and economic profits. To this end, self-adapting optimization algorithms are necessary due to the great number of variables and the excessive time required for ...  Read More

Petroleum Engineering
17. Chemometrics-enhanced Classification of Source Rock Samples Using their Bulk Geochemical Data: Southern Persian Gulf Basin

Majid Alipour; Bahram Alizadeh; Scott Ramos; Behzad Khani; Shohreh Mirzaie

Volume 8, Issue 4 , Autumn 2019, , Pages 1-17

http://dx.doi.org/10.22050/ijogst.2019.142950.1469

Abstract
  Chemometric methods can enhance geochemical interpretations, especially when working with large datasets. With this aim, exploratory hierarchical cluster analysis (HCA) and principal component analysis (PCA) methods are used herein to study the bulk pyrolysis parameters of 534 samples from the Persian ...  Read More

Petroleum Engineering
18. Foam Application in Fractured Carbonate Reservoirs: A Simulation Study

Ahmed Zoeir; Mohammad Chahardowli; Mohammad Simjoo

Volume 8, Issue 4 , Autumn 2019, , Pages 18-34

http://dx.doi.org/10.22050/ijogst.2019.147229.1476

Abstract
  Fractured carbonate reservoirs account for 25% of world’s total oil resources and for 90% of Iranian oil reserves. Since calcite and dolomite minerals are oil wet, gas oil gravity drainage (GOGD) is known as the most influencing production mechanism. The most important issue within gas injection ...  Read More

Petroleum Engineering
19. Chemical Modification of Lignite and Investigation of its Properties in Controlling Fluid Loss of Oil Well Cement Slurries

Ali Nemati Kharat; Ali akbar Ghaffari

Volume 8, Issue 4 , Autumn 2019, , Pages 35-49

http://dx.doi.org/10.22050/ijogst.2019.128036.1457

Abstract
  The aim of this research was to produce a convenient additive for enhancing the properties, especially the fluid loss, of oil well cement slurries. In this regard, a variety of drilling/cementing chemical additives known as fluid loss controllers were prepared through derivatization and chemical modification ...  Read More

Petroleum Engineering
20. Salinity Effect on the Surfactant Critical Micelle Concentration through Surface Tension Measurement

Naser Akhlaghi; Siavash Riahi

Volume 8, Issue 4 , Autumn 2019, , Pages 50-63

http://dx.doi.org/10.22050/ijogst.2019.156537.1481

Abstract
  One of the tertiary methods for enhanced oil recovery (EOR) is the injection of chemicals into oil reservoirs, and surface active agents (surfactants) are among the most used chemicals. Surfactants lead to increased oil production by decreasing interfacial tension (IFT) between oil and the injected water ...  Read More

Petroleum Engineering
21. An Evaluation of Rock Integrity and Fault Reactivation in the Cap Rock and Reservoir Rock Due to Pressure Variations

Mohammad Abdideh; Yaghob Hamid

Volume 8, Issue 3 , Summer 2019, , Pages 18-39

http://dx.doi.org/10.22050/ijogst.2019.136347.1462

Abstract
  Cap rocks are dams which can prevent the upward movement of hydrocarbons. They have disparities and weaknesses including discontinuities, crushed areas, and faults. Gas injection is an effective mechanism for oil recovery and pore pressure. With increasing pore pressure, normal stress is reduced, and ...  Read More

Petroleum Engineering
22. An Analytical Solution for One-dimensional Horizontal Imbibition in a Cocurrent Flow

Iman Jafari; Mohsen Masihi; Masoud Nasiri Zarandi

Volume 8, Issue 3 , Summer 2019, , Pages 40-57

http://dx.doi.org/10.22050/ijogst.2018.118644.1434

Abstract
  Cocurrent spontaneous imbibition (COCSI) of an aqueous phase into matrix blocks arising from capillary forces is an important mechanism for petroleum recovery from fractured petroleum reservoirs. In this work, the modeling of countercurrent imbibition is used to develop the appropriate scaling equations. ...  Read More

Petroleum Engineering
23. Improving Water-oil Relative Permeability Parameters Using New Synthesized Calcium Oxide and Commercial Silica Nanofluids

Yaser Ahmadi; Babak Aminshahidy

Volume 8, Issue 3 , Summer 2019, , Pages 58-72

http://dx.doi.org/10.22050/ijogst.2019.146641.1473

Abstract
  This paper addressed the application of new hydrophobic synthesized calcium oxide (CaO) and silicon dioxide (SiO2) nanofluids to low permeability carbonate porous media. Crude oil and plugs were selected from one of oil reservoirs in the west of Iran. The main goal of this paper is comparing the results ...  Read More

Petroleum Engineering
24. Thermodynamic and Kinetic Investigations of Corrosion Inhibition Behavior of 2-MBT on Steel at a pH of 8

Hojatallah Koraee; Hadi Eskandari; Iman Danaee

Volume 8, Issue 3 , Summer 2019, , Pages 101-112

http://dx.doi.org/10.22050/ijogst.2018.55732

Abstract
  Corrosion results in hazardous and expensive damage to pipelines, vehicles, water and wastewater systems, and even home appliances. One of the most extensively practical methods for protecting metals and alloys against corrosion is to use organic inhibitors. The inhibition capability of 2-Mercaptobenzothiazole ...  Read More

Petroleum Engineering
25. A Numerical Investigation into the Effect of Controllable Parameters on the Natural Gas Storage in a Weak Reservoir-type Aquifer

Arezou Jafari; Peyman Sadirli; Reza Gharibshahi; Esmaeel Kazemi Tooseh; Masoud Samivand; Ali Teymouri

Volume 8, Issue 1 , Winter 2019, , Pages 11-31

http://dx.doi.org/10.22050/ijogst.2018.119136.1441

Abstract
  Natural gas storage process in aquifer, due to fluid flow behavior of gas and water in the porous medium and because of their contact with each other under reservoir conditions, faces several challenges. Therefore, there should be a clear understanding of the injected gas behavior before and after the ...  Read More