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Rudolf K. Fruhwirth
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Proceedings Papers

Formation Breakdown Pressure Prediction with Artificial Neural Networks

Akos Kiss, Rudolf K. Fruhwirth, Reinhard Pongratz, Robert Maier, Herbert Hofstätter
Paper presented at the SPE International Hydraulic Fracturing Technology Conference and Exhibition, October 16–18, 2018
Paper Number: SPE-191391-18IHFT-MS
https://doi.org/10.2118/191391-18IHFT-MS
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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

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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Proceedings Papers

Laboratory Scale Control of Drilling Parameters to Enhance Rate of Penetration and Reduce Drill String Vibration

Abdolali Esmaeili, Behzad Elahifar, Rudolf K. Fruhwirth, Gerhard Thonhauser
Paper presented at the SPE Saudi Arabia Section Technical Symposium and Exhibition, April 8–11, 2012
Paper Number: SPE-160872-MS
https://doi.org/10.2118/160872-MS
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View Paper titled, Laboratory Scale Control of Drilling Parameters to Enhance Rate of Penetration and Reduce Drill String Vibration
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