Behzad Elahifar
Om
Education
- Ph.D. in Drilling Engineering, University of Leoben
- MEng in Petroleum Well Engineering, Curtin University of Technology
- BSc in Drilling Engineering, Petroleum University of Technology
Working Experience
- Associate Professor, Geoscience and Petroleum Eng Department (NTNU)
- Project Manager, NOV (National Oil Well Varco) Company
- Project Manager/MPD Specialist, Enhanced Drilling Company
- Drilling Engineer, Advanced Drilling Solutions Company (TDE)
- Drilling Instructor/Researcher, University of Leoben
- Drilling Supervisor, NIOC
- Night Drilling Supervisor, PPZ
Research Area
I am an Associate Professor / Project Manager / Sr. Drilling Engineer with long-term experience both in drilling operations and also in the academic field. I am specialized in Digitalization and Automation in Drilling and P&A (Plug and Abandonment) optimization processes. Here is the list of my research area:
- Digitalization of well planning
- Real-time downhole issues detection and prediction
- Using Bismuth alloy for P&A operation
- Automated drilling sequences
- MPD (Managed Pressure Drilling)
- CML (Control Mud Level)
- MPC (Managed Pressure cementing)
Forskning
Research Area
I am an Associate Professor / Project Manager / Sr. Drilling Engineer with long-term experience both in drilling operations and also in the academic field. I am specialized in Digitalization and Automation in Drilling and P&A (Plug and Abandonment) optimization processes. Here is the list of my research area:
- Digitalization of well planning
- Real-time downhole issues detection and prediction
- Using Bismuth alloy for P&A operation
- Automated drilling sequences
- MPD (Managed Pressure Drilling)
- CML (Control Mud Level)
- MPC (Managed Pressure cementing)
Publikasjoner
2025
-
Elahifar, Behzad;
Isania, Fatemeh.
(2025)
Advances in geothermal drilling: A comparative study with oil and gas techniques.
Geoenergy Science and Engineering
Vitenskapelig artikkel
2024
-
Hmadeh, Lewaa;
Feneuil, Blandine Fleur Prudence;
Wiggen, Even;
Skorpa, Ragnhild;
Sangesland, Sigbjørn;
Elahifar, Behzad.
(2024)
The Effect of Bismuth Plug Expansion on Cement Sheath Integrity.
SPE Norway Subsurface Conference
Populærvitenskapelig artikkel
-
Hmadeh, Lewaa;
Elahifar, Behzad.
(2024)
Bismuth Metal Alloys: A Possible Future for Well Plugging and Abandonment.
Norges teknisk-naturvitenskapelige universitet
Doktoravhandlinger ved NTNU (2024/480)
Doktorgradsavhandling
-
Elahifar, Behzad.
(2024)
Real-Time Artificial Intelligence-Enhanced Machine Learning Technique for Accurate Drilling Parameter Prediction and Optimization.
Society of Petroleum Engineering
Populærvitenskapelig artikkel
-
Hmadeh, Lewaa;
Jaculli, Marcelo Anunciacao;
Elahifar, Behzad;
Sangesland, Sigbjørn.
(2024)
Development of bismuth-based solutions for well plugging and abandonment: A review.
Petroleum Research
Vitenskapelig oversiktsartikkel/review
-
Hmadeh, Lewaa;
Manataki, Andriani;
Anunciacao Jaculli, Marcelo;
Elahifar, Behzad;
Sangesland, Sigbjørn.
(2024)
A Sealability Study on Bismuth-Tin Alloys for Plugging and Abandonment of Wells.
SPE Journal
Vitenskapelig artikkel
-
Hmadeh, Lewaa;
Anunciacao Jaculli, Marcelo;
Vedvik, Noralf;
Elahifar, Behzad;
Sangesland, Sigbjørn.
(2024)
The effect of temperature on the sealability of bismuth–tin alloy plugs.
Geoenergy Science and Engineering
Vitenskapelig artikkel
-
Hmadeh, Lewaa;
Manataki, Andriani;
Anunciacao Jaculli, Marcelo;
Elahifar, Behzad;
Sangesland, Sigbjørn.
(2024)
Mitigating gas migration with eutectic bismuth alloy plugs.
Petroleum Research
Vitenskapelig artikkel
-
Anunciacao Jaculli, Marcelo;
Hmadeh, Lewaa;
Sangesland, Sigbjørn;
Elahifar, Behzad.
(2024)
Numerical Modeling of Bismuth-Based Plugs for Well Plug and Abandonment.
The American Society of Mechanical Engineers (ASME)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Elahifar, Behzad;
Hosseini, Erfan.
(2024)
Automated real-time prediction of geological formation tops during drilling operations: an applied machine learning solution for the Norwegian Continental Shelf.
Journal of Petroleum Exploration and Production Technology
Vitenskapelig artikkel
2023
-
Hmadeh, Lewaa;
Elahifar, Behzad;
Sangesland, Sigbjørn;
Abrahamsen, Andreas Elmer.
(2023)
A Full Laboratory Study on the Physical and Mechanical Properties of a Bismuth Plug.
Society of Petroleum Engineers
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Elahifar, Behzad.
(2023)
Managed Pressure Drilling and Cementing and Optimizing with Digital Solutions.
IntechOpen
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Elahifar, Behzad;
Gomar, Mostafa.
(2023)
REAL-TIME AUTOMATIC PREDICTION, DETECTION, AND MITIGATION OF FLUID LOSS DURING DRILLING OPERATION EMPLOYING ALONG STRING MEASUREMENT (ASM) DATA ALONG WIRED DRILL PIPES BY USING DIGITAL TWIN IN NORWEGIAN CONTINENTAL.
The American Society of Mechanical Engineers (ASME)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Gomar, Mostafa;
Elahifar, Behzad.
(2023)
Real time prediction and detection of drilling bit issues during drilling with the focus on bit status evaluation using along string measurement (ASM).
Geoenergy Science and Engineering
Vitenskapelig artikkel
-
Elahifar, Behzad;
Hosseini, Erfan.
(2023)
Laboratory study of plugging mechanism and seal integrity in fractured formations using a new blend of lost circulation materials.
Journal of Petroleum Exploration and Production Technology
Vitenskapelig artikkel
-
Elahifar, Behzad;
Hosseini, Erfan.
(2023)
A new approach for real-time prediction of stick–slip vibrations enhancement using model agnostic and supervised machine learning: a case study of Norwegian continental shelf.
Journal of Petroleum Exploration and Production Technology
Vitenskapelig artikkel
-
Hmadeh, Lewaa;
Elahifar, Behzad;
Sangesland, Sigbjørn.
(2023)
The Sealing Behavior of Bismuth-Based Metal Plugs.
The American Society of Mechanical Engineers (ASME)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Elahifar, Behzad;
Hosseini, Erfan.
(2023)
Digitalization: Python Application for Drilling & Geoscience Engineer.
Lambert Academic Publishing
Lambert Academic Publishing
Lærebok
2022
-
Elahifar, Behzad;
Gomar, Mostafa.
(2022)
Application of Digitalization in Real-Time Analysis of Drilling Dynamics Using Along-String Measurement (ASM) Data along Wired Pipes.
Energies
Vitenskapelig artikkel
-
Elahifar, Behzad;
Hosseini, Erfan.
(2022)
Machine learning algorithm for prediction of stuck pipe incidents using statistical data: case study in middle east oil fields.
Journal of Petroleum Exploration and Production Technology
Vitenskapelig artikkel
-
Elahifar, Behzad;
Hosseini, Erfan.
(2022)
Improving the Rheological and Mechanical Properties of Oil Well Cement Slurries Using Multiple Chemical Admixtures for Enhancing Zonal Isolation: A Laboratory Evaluation.
Journal of energy resources technology
Vitenskapelig artikkel
Tidsskriftspublikasjoner
-
Elahifar, Behzad;
Isania, Fatemeh.
(2025)
Advances in geothermal drilling: A comparative study with oil and gas techniques.
Geoenergy Science and Engineering
Vitenskapelig artikkel
-
Hmadeh, Lewaa;
Feneuil, Blandine Fleur Prudence;
Wiggen, Even;
Skorpa, Ragnhild;
Sangesland, Sigbjørn;
Elahifar, Behzad.
(2024)
The Effect of Bismuth Plug Expansion on Cement Sheath Integrity.
SPE Norway Subsurface Conference
Populærvitenskapelig artikkel
-
Elahifar, Behzad.
(2024)
Real-Time Artificial Intelligence-Enhanced Machine Learning Technique for Accurate Drilling Parameter Prediction and Optimization.
Society of Petroleum Engineering
Populærvitenskapelig artikkel
-
Hmadeh, Lewaa;
Jaculli, Marcelo Anunciacao;
Elahifar, Behzad;
Sangesland, Sigbjørn.
(2024)
Development of bismuth-based solutions for well plugging and abandonment: A review.
Petroleum Research
Vitenskapelig oversiktsartikkel/review
-
Hmadeh, Lewaa;
Manataki, Andriani;
Anunciacao Jaculli, Marcelo;
Elahifar, Behzad;
Sangesland, Sigbjørn.
(2024)
A Sealability Study on Bismuth-Tin Alloys for Plugging and Abandonment of Wells.
SPE Journal
Vitenskapelig artikkel
-
Hmadeh, Lewaa;
Anunciacao Jaculli, Marcelo;
Vedvik, Noralf;
Elahifar, Behzad;
Sangesland, Sigbjørn.
(2024)
The effect of temperature on the sealability of bismuth–tin alloy plugs.
Geoenergy Science and Engineering
Vitenskapelig artikkel
-
Hmadeh, Lewaa;
Manataki, Andriani;
Anunciacao Jaculli, Marcelo;
Elahifar, Behzad;
Sangesland, Sigbjørn.
(2024)
Mitigating gas migration with eutectic bismuth alloy plugs.
Petroleum Research
Vitenskapelig artikkel
-
Elahifar, Behzad;
Hosseini, Erfan.
(2024)
Automated real-time prediction of geological formation tops during drilling operations: an applied machine learning solution for the Norwegian Continental Shelf.
Journal of Petroleum Exploration and Production Technology
Vitenskapelig artikkel
-
Gomar, Mostafa;
Elahifar, Behzad.
(2023)
Real time prediction and detection of drilling bit issues during drilling with the focus on bit status evaluation using along string measurement (ASM).
Geoenergy Science and Engineering
Vitenskapelig artikkel
-
Elahifar, Behzad;
Hosseini, Erfan.
(2023)
Laboratory study of plugging mechanism and seal integrity in fractured formations using a new blend of lost circulation materials.
Journal of Petroleum Exploration and Production Technology
Vitenskapelig artikkel
-
Elahifar, Behzad;
Hosseini, Erfan.
(2023)
A new approach for real-time prediction of stick–slip vibrations enhancement using model agnostic and supervised machine learning: a case study of Norwegian continental shelf.
Journal of Petroleum Exploration and Production Technology
Vitenskapelig artikkel
-
Elahifar, Behzad;
Gomar, Mostafa.
(2022)
Application of Digitalization in Real-Time Analysis of Drilling Dynamics Using Along-String Measurement (ASM) Data along Wired Pipes.
Energies
Vitenskapelig artikkel
-
Elahifar, Behzad;
Hosseini, Erfan.
(2022)
Machine learning algorithm for prediction of stuck pipe incidents using statistical data: case study in middle east oil fields.
Journal of Petroleum Exploration and Production Technology
Vitenskapelig artikkel
-
Elahifar, Behzad;
Hosseini, Erfan.
(2022)
Improving the Rheological and Mechanical Properties of Oil Well Cement Slurries Using Multiple Chemical Admixtures for Enhancing Zonal Isolation: A Laboratory Evaluation.
Journal of energy resources technology
Vitenskapelig artikkel
Bøker
-
Elahifar, Behzad;
Hosseini, Erfan.
(2023)
Digitalization: Python Application for Drilling & Geoscience Engineer.
Lambert Academic Publishing
Lambert Academic Publishing
Lærebok
Del av bok/rapport
-
Anunciacao Jaculli, Marcelo;
Hmadeh, Lewaa;
Sangesland, Sigbjørn;
Elahifar, Behzad.
(2024)
Numerical Modeling of Bismuth-Based Plugs for Well Plug and Abandonment.
The American Society of Mechanical Engineers (ASME)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Hmadeh, Lewaa;
Elahifar, Behzad;
Sangesland, Sigbjørn;
Abrahamsen, Andreas Elmer.
(2023)
A Full Laboratory Study on the Physical and Mechanical Properties of a Bismuth Plug.
Society of Petroleum Engineers
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Elahifar, Behzad.
(2023)
Managed Pressure Drilling and Cementing and Optimizing with Digital Solutions.
IntechOpen
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Elahifar, Behzad;
Gomar, Mostafa.
(2023)
REAL-TIME AUTOMATIC PREDICTION, DETECTION, AND MITIGATION OF FLUID LOSS DURING DRILLING OPERATION EMPLOYING ALONG STRING MEASUREMENT (ASM) DATA ALONG WIRED DRILL PIPES BY USING DIGITAL TWIN IN NORWEGIAN CONTINENTAL.
The American Society of Mechanical Engineers (ASME)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Hmadeh, Lewaa;
Elahifar, Behzad;
Sangesland, Sigbjørn.
(2023)
The Sealing Behavior of Bismuth-Based Metal Plugs.
The American Society of Mechanical Engineers (ASME)
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
Rapport
-
Hmadeh, Lewaa;
Elahifar, Behzad.
(2024)
Bismuth Metal Alloys: A Possible Future for Well Plugging and Abandonment.
Norges teknisk-naturvitenskapelige universitet
Doktoravhandlinger ved NTNU (2024/480)
Doktorgradsavhandling
Undervisning
Emner
- PG8503 - Automated Drilling
- TPG4560 - Petroleum Engineering, Specialization Project
- TPG4242 - Drilling Engineering 3
- TPG4210 - Drilling Engineering 1
- TPG4565 - Petroleum Engineering, Specialization Course
- TPG4105 - Petroleum Engineering, Basic Course
- TPG4215 - Drilling Engineering 2
- TPG4920 - Petroleum Engineering, Master's Thesis
Veiledning
Supervision
I have been the supervisor for many master's students at NTNU and exchange students from Politecnico di Torino. Following are the students that I am their supervisor:
2020-2023: Mostafa Gomar, Real-time fault, and symptoms detection in drilling operation with wired drill pipe data
2021-2024: Lewaa Hmadeh, Applications of bismuth alloys in well completion and well plugging
2023-2026: Claudio Rogerio Bregueje, Analysing chemical and physical properties of bismuth alloy for cementing and P&A application
Formidling
2025
-
Populærvitenskapelig foredragElahifar, Behzad; Hmadeh, Lewaa; Essén, Tora; Sangesland, Sigbjørn. (2025) Evaluating the Performance of a Cost-Effective Creep Testing Setup on Bismuth-Tin Alloy Specimens: Challenges and Future Directions. SPE/IADC International Drilling Conference and Exhibition 2025-03-03 - 2025-03-06
2024
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Vitenskapelig foredragElahifar, Behzad; Ibrahimli, Javidan. (2024) Innovative Strategies for Well Integrity in Offshore Top-Hole Cementing: Laboratory-Validated Success in Shallow Gas Mitigation. SPE/GOTECH Society Petroleum Engineers , Dubai 2024-05-07 - 2024-05-09
2023
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Vitenskapelig foredragElahifar, Behzad; Gomar, Mostafa. (2023) Real-Time Prediction and Detection of Drilling Bit Issues Based on Along-String Measurements (ASM) Along Wired Pipes - A Case Study. Society Petroleum Engineers 2023-03-07 - 2023-03-10
2022
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Faglig foredragSangesland, Sigbjørn; Vedvik, Noralf; Opedal, Nils van der Tuuk; Elahifar, Behzad. (2022) Bismuth based barrier materials –Initial results from 3rd party testing in SWIPA. OFFSHORE NORGE 10th Norwegian Plug & Abandonment Seminar , Stavanger 2022-10-20 - 2022-10-20
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Vitenskapelig foredragElahifar, Behzad; Gomar, Mostafa. (2022) Understanding Thermo-Poroelastic Mechanical Stress Induced Damages in Network of Pre-Existing Fractures During Drilling Operation. Society of Petroleum Engineer IADC/SPE Asia Pacific Drilling Technology Conference and Exhibition , Bangkok 2022-08-08 - 2022-08-10
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Faglig foredragGomar, Mostafa; Elahifar, Behzad. (2022) Real-Time Fault, Symptom Diagnosis and Drilling Events Prediction Using Wired Pipe During Operation - Cutter Force Modeling of Pdc (polycrystalline Diamond Compact) Bits. Society of Petroleum Engineering IADC/SPE International Drilling Conference and Exhibition , Galveston, Texas 2022-03-06 - 2022-03-08
2018
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Populærvitenskapelig foredragElahifar, Behzad; Claudey, Eric; Fossli, Børre; Qiang, Zhizhuang; Olsen, Max; Mo, Jakob. (2018) Experience Using Managed Pressure Cementing Techniques with Riserless Mud Recovery and Controlled Mud Level in the Barents Sea. Society of Petroleum Engineer Bergen SPE one day conference , Bergen 2018-04-18 - 2018-04-19
2017
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Vitenskapelig foredragElahifar, Behzad. (2017) Successful Deep Water Drilling (MPD), Early Kick Detection and Performing Managed Pressure Cementing With CML (Controlled Mud Level) System in GOM and North Sea. SPE/IADC Conference and Exhibition 2017-03-14 - 2017-03-16
2014
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Populærvitenskapelig foredragElahifar, Behzad; Fasch, Franz; Tollschein, Christian; Thonhauser, Gerhard. (2014) Real Time Kick Detection Applying an Ultrasonic Caliper Featuring a Downhole Sonic Speed Measurement for Calibration Purposes. SPE Saudi Arabia Section Technical Symposium and Exhibition 2014-04-21 - 2014-04-24
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Vitenskapelig foredragElahifar, Behzad; Fasch, Franz; Thonhauser, Gerhard. (2014) Real Time Kick Detection And Also Increasing Ultrasonic Caliper Accuracy By Measuring Speed Of Sound Within Drilling Fluid In The Downhole Condition. Society of Petroleum Engineer SPE Annual Technical Conference and Exhibition 2014-10-27 - 2014-10-29
2013
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Vitenskapelig foredragElahifar, Behzad; Esmaeili, Abdolali; Thonhauser, Gerhard; Fruhwirth, Rudolf. (2013) Wellbore Instability Monitoring by Using 4D Imaging of Ultrasonic Caliper Logs in Real Time Drilling. Society Petroleum Engineers 2013-03-01 -
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Populærvitenskapelig foredragElahifar, Behzad; Esmaeili, Abdolali; Fruhwirth, Rudolf; Thonhauser, Gerhard. (2013) Real Time Determination of the Instability in the Borehole by Using 4D Images of the Wellbore with High Accuracy Ultrasonic Caliper. SPE/IADC Middle East Drilling Technology Conference and Exhibition 2013-10-07 - 2013-10-09
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Populærvitenskapelig foredragElahifar, Behzad; Esmaeili, Abdolali; Fruhwirth, Rudolf; Thonhauser, Gerhard. (2013) Formation Evaluation based on Drill String Vibration Measurements Using Laboratory Scale Rig. Society of Petroleum Engineer SPE/IADC Middle East Drilling Technology Conference and Exhibition 2013-10-07 - 2013-10-09
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Populærvitenskapelig foredragElahifar, Behzad; Esmaeili, Abdolali; Thonhauser, Gerhard. (2013) Real Time Data Transmission Method for Creating 4D Wellbore Images to Monitor Wellbore Shape and Detecting Instabilities. Society of Petroleum Engineer Kuwait SPE Oil and Gas show and conference 2013-10-07 - 2013-10-10
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Vitenskapelig foredragElahifar, Behzad; Esmaeili, Abdolali; Thonhauser, Gerhard; Fruhwirth, Rudolf. (2013) Effect of Formations Compressive Strength on Drill String Vibrations. Society Petroleum Engineers 2013-03-01 -
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Vitenskapelig foredragElahifar, Behzad; Esmaeili, Abdolali; Thonhauser, Gerhard; Fruhwirth, Rudolf. (2013) Experimental Determination of Wellbore Diameter and Shape (4D Imaging of Wellbore) by Using Ultrasonic Caliper within Different Fluids for Real-Time Drilling Application. Oil Gas European Magazine 2013-03-01 -
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Vitenskapelig foredragElahifar, Behzad; Esmaeili, Abdolali; Thonhauser, Gerhard. (2013) Formation Changes Recognition by Real-time Monitoring of Drill String Vibrations and Mechanical Specific Energy. International Conference for Advanced Drilling Technology 2013-09-09 - 2013-09-10
2012
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Vitenskapelig foredragElahifar, Behzad; Esmaeili, Abdolali; Thonhauser, Gerhard; Fruhwirth, Rudolf. (2012) Experimental Evaluation of Real Time Mechanical Formation Classification using Drill String Vibration Measurements. Society Petroleum Engineers 2012-10-01 -
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Vitenskapelig foredragElahifar, Behzad; Esmaeili, Abdolali; Thonhauser, Gerhard; Fruhwirth, Rudolf. (2012) Determining the Accuracy of Ultrasonic Caliper Measurements for Real Time Drilling Application. Society Petroleum Engineers 2012-10-01 -
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Vitenskapelig foredragElahifar, Behzad; Esmaeili, Abdolali; Thonhauser, Gerhard; Fruhwirth, Rudolf. (2012) Real Time Measurement of Borehole Shape and Diameter by Using Ultrasonic Caliper in Different Drilling Fluid and Wellbore Conditions for Detecting Instabilities. Society Petroleum Engineers 2012-11-01 -
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Vitenskapelig foredragElahifar, Behzad; Esmaeili, Abdolali; Thonhauser, Gerhard; Fruhwirth, Rudolf. (2012) ROP Modeling Using Neural Network and Drill String Vibration Data. Society Petroleum Engineers 2012-12-01 -
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Vitenskapelig foredragElahifar, Behzad; Esmaeili, Abdolali; Thonhauser, Gerhard; Fruhwirth, Rudolf. (2012) Using Neural Network Technique to Study the Effect of Formation's Mechanical Properties on Dynamic Behavior of Drill String. International Conference for Advanced Drilling Technology Celle Drilling 2012-09-01 -
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Vitenskapelig foredragElahifar, Behzad; Esmaeili, Abdolali; Thonhauser, Gerhard; Fruhwirth, Rudolf. (2012) Axial Vibration Monitoring in Laboratory Scale Using CDC miniRig and Vibration Sensor Sub. IEEE, I2MTC 2012-03-01 -
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Vitenskapelig foredragElahifar, Behzad; Esmaeili, Abdolali; Thonhauser, Gerhard; Fruhwirth, Rudolf. (2012) Laboratory Scale Control of Drilling Parameters to Enhance Rate of Penetration and Reduce Drill String Vibration. Society Petroleum Engineers 2012-01-01 -
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Vitenskapelig foredragElahifar, Behzad; Esmaeili, Abdolali; Thonhauser, Gerhard; Fruhwirth, Rudolf. (2012) Accuracy of Ultrasonic Sensor in Caliper Log. IEEE, I2MTC 2012-03-01 -
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Vitenskapelig foredragElahifar, Behzad; Esmaeili, Abdolali; Thonhauser, Gerhard; Fruhwirth, Rudolf. (2012) Experimental Determination of Wellbore Diameter and Shape by Using Ultrasonic Caliper Within Different Fluids for Real Time Drilling Application. International Conference for Advanced Drilling Technology Celle Drilling 2012-09-01 -
2011
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Vitenskapelig foredragElahifar, Behzad; Esmaeili, Abdolali; Thonhauser, Gerhard; Prohaska, Michael. (2011) A Comparison of Specific Energy Consumption for Alternative and Conventional Drilling Methods. International Conference for Advanced Drilling Technology Celle Drilling 2011-08-01 -
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Vitenskapelig foredragElahifar, Behzad; Esmaeili, Abdolali; Thonhauser, Gerhard; Prohaska, Michael. (2011) An Energy Based Comparison Drilling Method. Society Petroleum Engineers 2011-10-01 -
2005
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Vitenskapelig foredragElahifar, Behzad; Naderian, Mohammad Amin; Hosseinzadeh, Ahmad. (2005) Application of Drilling Optimization- A Case Study for a Well in an Iranian Offshore Oil Field. Iranian Petroleum Engineering Student Conference 2005-01-01 -