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Behzad Elahifar
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Proceedings Papers

Real-Time Artificial Intelligence-Enhanced Machine Learning Technique for Accurate Drilling Parameter Prediction and Optimization

Behzad Elahifar
Paper presented at the SPE Annual Technical Conference and Exhibition, September 23–25, 2024
Paper Number: SPE-220914-MS
https://doi.org/10.2118/220914-MS
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View Paper titled, Real-Time Artificial Intelligence-Enhanced Machine Learning Technique for Accurate Drilling Parameter Prediction and Optimization
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Journal Articles

A Sealability Study on Bismuth-Tin Alloys for Plugging and Abandonment of Wells

Lewaa Hmadeh, Andriani Manataki, Marcelo Anunciação Jaculli, Behzad Elahifar, Sigbjørn Sangesland
Journal: SPE Journal
Publisher: Society of Petroleum Engineers (SPE)
SPE J. 29 (07): 3500–3515.
Paper Number: SPE-219744-PA
https://doi.org/10.2118/219744-PA
Published: 10 July 2024
View article titled, A Sealability Study on Bismuth-Tin Alloys for Plugging and Abandonment of Wells
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Proceedings Papers

Innovative Strategies for Well Integrity in Offshore Top-Hole Cementing: Laboratory-Validated Success in Shallow Gas Mitigation

Behzad Elahifar, Javidan Ibrahimli
Paper presented at the GOTECH, May 7–9, 2024
Paper Number: SPE-219149-MS
https://doi.org/10.2118/219149-MS
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View Paper titled, Innovative Strategies for Well Integrity in Offshore Top-Hole Cementing: Laboratory-Validated Success in Shallow Gas Mitigation
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Proceedings Papers

The Effect of Bismuth Plug Expansion on Cement Sheath Integrity

Lewaa Hmadeh, Blandine Feneuil, Even Wiggen, Ragnhild Skorpa, Sigbjørn Sangesland, Behzad Elahifar, Marcelo Anuncição Jaculli
Paper presented at the SPE Norway Subsurface Conference, April 17, 2024
Paper Number: SPE-218458-MS
https://doi.org/10.2118/218458-MS
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View Paper titled, The Effect of Bismuth Plug Expansion on Cement Sheath Integrity
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Proceedings Papers

A Full Laboratory Study on the Physical and Mechanical Properties of a Bismuth Plug

Lewaa Hmadeh, Behzad Elahifar, Sigbjørn Sangesland, Andreas Elmer Abrahamsen
Paper presented at the SPE/IADC International Drilling Conference and Exhibition, March 7–9, 2023
Paper Number: SPE-212561-MS
https://doi.org/10.2118/212561-MS
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View Paper titled, A Full Laboratory Study on the Physical and Mechanical Properties of a Bismuth Plug
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Proceedings Papers

Real-Time Prediction and Detection of Drilling Bit Issues Based on Along-String Measurements (ASM) Along Wired Pipes - A Case Study

Mostafa Gomar, Behzad Elahifar
Paper presented at the SPE/IADC International Drilling Conference and Exhibition, March 7–9, 2023
Paper Number: SPE-212488-MS
https://doi.org/10.2118/212488-MS
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View Paper titled, Real-Time Prediction and Detection of Drilling Bit Issues Based on Along-String Measurements (ASM) Along Wired Pipes - A Case Study
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Proceedings Papers

Understanding Thermo-Poroelastic Mechanical Stress Induced Damages in Network of Pre-Existing Fractures During Drilling Operation

Mostafa Gomar, Behzad Elahifar
Paper presented at the IADC/SPE Asia Pacific Drilling Technology Conference and Exhibition, August 9–10, 2022
Paper Number: SPE-209837-MS
https://doi.org/10.2118/209837-MS
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View Paper titled, Understanding Thermo-Poroelastic Mechanical Stress Induced Damages in Network of Pre-Existing Fractures During Drilling Operation
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Proceedings Papers

Real-Time Drilling Bit Fault and Symptom Diagnosis During Operation Based on Cutter Force Modeling of PDC Polycrystalline Diamond Compact Bits

Mostafa Gomar, Behzad Elahifar
Paper presented at the IADC/SPE International Drilling Conference and Exhibition, March 8–10, 2022
Paper Number: SPE-208729-MS
https://doi.org/10.2118/208729-MS
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View Paper titled, Real-Time Drilling Bit Fault and Symptom Diagnosis During Operation Based on Cutter Force Modeling of PDC Polycrystalline Diamond Compact Bits
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Proceedings Papers

Successful Deep Water Drilling MPD, Early Kick Detection and Performing Managed Pressure Cementing With CML Controlled Mud Level System in GOM and North Sea

Behzad Elahifar
Paper presented at the SPE/IADC Drilling Conference and Exhibition, March 14–16, 2017
Paper Number: SPE-184627-MS
https://doi.org/10.2118/184627-MS
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View Paper titled, Successful Deep Water Drilling MPD, Early Kick Detection and Performing Managed Pressure Cementing With CML Controlled Mud Level System in GOM and North Sea
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Proceedings Papers

Real Time Kick Detection and Also Increasing Ultrasonic Caliper Accuracy by Measuring Speed of Sound within Drilling Fluid in the Downhole Condition

Behzad Elahifar, Franz Fasch, Gerhard Thonhauser
Paper presented at the SPE Annual Technical Conference and Exhibition, October 27–29, 2014
Paper Number: SPE-170581-MS
https://doi.org/10.2118/170581-MS
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View Paper titled, Real Time Kick Detection and Also Increasing Ultrasonic Caliper Accuracy by Measuring Speed of Sound within Drilling Fluid in the Downhole Condition
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Proceedings Papers

Real Time Kick Detection Applying an Ultrasonic Caliper Featuring a Downhole Sonic Speed Measurement for Calibration Purposes

Behzad Elahifar, Franz Fasch, Gerhard Thonhauser, Christian Tollschein
Paper presented at the SPE Saudi Arabia Section Technical Symposium and Exhibition, April 21–24, 2014
Paper Number: SPE-172170-MS
https://doi.org/10.2118/172170-MS
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View Paper titled, Real Time Kick Detection Applying an Ultrasonic Caliper Featuring a Downhole Sonic Speed Measurement for Calibration Purposes
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Proceedings Papers

Real Time Data Transmission Method for Creating 4D Wellbore Images to Detect Instabilities with High Accuracy Ultrasonic Caliper

Behzad Elahifar, Abdolali Esmaeili, Gerhard Thonhauser
Paper presented at the SPE Kuwait Oil and Gas Show and Conference, October 8–10, 2013
Paper Number: SPE-167317-MS
https://doi.org/10.2118/167317-MS
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View Paper titled, Real Time Data Transmission Method for Creating 4D Wellbore Images to Detect Instabilities with High Accuracy Ultrasonic Caliper
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Proceedings Papers

Formation Prediction Model based on Drill String Vibration Measurements Using Laboratory Scale Rig

Abdolali Esmaeili, Behzad Elahifar, Rudolf K. Fruhwirth, Gerhard Thonhauser
Paper presented at the SPE/IADC Middle East Drilling Technology Conference & Exhibition, October 7–9, 2013
Paper Number: SPE-166793-MS
https://doi.org/10.2118/166793-MS
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View Paper titled, Formation Prediction Model based on Drill String Vibration Measurements Using Laboratory Scale Rig
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Proceedings Papers

Real Time Determination of the Instability in the Borehole by Using 4D Images of the Wellbore with High Accuracy Ultrasonic Caliper

Behzad Elahifar, Abdolali Esmaeili, Gerhard Thonhauser
Paper presented at the SPE/IADC Middle East Drilling Technology Conference & Exhibition, October 7–9, 2013
Paper Number: SPE-166770-MS
https://doi.org/10.2118/166770-MS
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View Paper titled, Real Time Determination of the Instability in the Borehole by Using 4D Images of the Wellbore with High Accuracy Ultrasonic Caliper
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Proceedings Papers

Wellbore Instability Monitoring by Using 4D Imaging of Ultrasonic Caliper Logs in Real Time Drilling

Behzad Elahifar, Abdolali Esmaeili, Rudolf K. Fruhwirth, Gerhard Thonhauser
Paper presented at the International Petroleum Technology Conference, March 26–28, 2013
Paper Number: IPTC-17002-MS
https://doi.org/10.2523/IPTC-17002-MS
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View Paper titled, Wellbore Instability Monitoring by Using 4D Imaging of Ultrasonic Caliper Logs in Real Time Drilling
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Proceedings Papers

Effect of Formations Compressive Strength on Drill String Vibrations

Abdolali Esmaeili, Behzad Elahifar, Rudolf K. Fruhwirth, Gerhard Thonhauser
Paper presented at the International Petroleum Technology Conference, March 26–28, 2013
Paper Number: IPTC-16985-Abstract
https://doi.org/10.2523/IPTC-16985-Abstract
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View Paper titled, Effect of Formations Compressive Strength on Drill String Vibrations
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Proceedings Papers

ROP Modeling Using Neural Network and Drill String Vibration Data

Abdolali Esmaeili, Behzad Elahifar, Rudolf K. Fruhwirth, Gerhard Thonhauser
Paper presented at the SPE Kuwait International Petroleum Conference and Exhibition, December 10–12, 2012
Paper Number: SPE-163330-MS
https://doi.org/10.2118/163330-MS
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View Paper titled, ROP Modeling Using Neural Network and Drill String Vibration Data
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Proceedings Papers

Real Time Measurement of Borehole Shape and Diameter by Using Ultrasonic Caliper in Different Drilling Fluid and Wellbore Conditions for Detecting Instabilities

Behzad Elahifar, Abdolali Esmaeili, Rudolf K. Fruhwirth, Gerhard Thonhauser
Paper presented at the SPE Canadian Unconventional Resources Conference, October 30–November 1, 2012
Paper Number: SPE-162251-MS
https://doi.org/10.2118/162251-MS
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View Paper titled, Real Time Measurement of Borehole Shape and Diameter by Using Ultrasonic Caliper in Different Drilling Fluid and Wellbore Conditions for Detecting Instabilities
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Proceedings Papers

Determining the Accuracy of Ultrasonic Caliper Measurements for Real Time Drilling Application

Behzad Elahifar, Abdolali Esmaeili, Rudolf K. Fruhwirth
Paper presented at the SPE Asia Pacific Oil and Gas Conference and Exhibition, October 22–24, 2012
Paper Number: SPE-158160-MS
https://doi.org/10.2118/158160-MS
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View Paper titled, Determining the Accuracy of Ultrasonic Caliper Measurements for Real Time Drilling Application
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Proceedings Papers

Experimental Evaluation of Real-Time Mechanical Formation Classification using Drill String Vibration Measurements

Abdolali Esmaeili, Behzad Elahifar, Rudolf K. Fruhwirth, Gerhard Thonhauser
Paper presented at the SPE Annual Technical Conference and Exhibition, October 8–10, 2012
Paper Number: SPE-158933-MS
https://doi.org/10.2118/158933-MS
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View Paper titled, Experimental Evaluation of Real-Time Mechanical Formation Classification using Drill String Vibration Measurements
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