Robello Samuel
Robello Samuel
Adjunct Faculty - Lecturer; Ph.D., University of Tulsa
Office Location: ERP 9
Phone: 832-275-8810
Email: robellos [at] hotmail [dot] com

Dr.Robello Samuel has been a Chief Technical advisor and is currently a Technology Fellow in the Drilling division of Halliburton, working with Halliburton since 1998. He is presently a research and engineering lead for well engineering applications and responsible for research and scientific activities for new drilling technologies. Dr. Samuel began his career working on rigs as a field and drilling engineer for nine years with the Oil and Natural Gas Corporation. Since then he has developed more than 30 years of multi-disciplinary experience in domestic and international oil/gas drilling and completion operations, management, consulting, software development and teaching. His skills include practical and theoretical background in on-shore and off-shore well engineering, design, cost estimates, supervision of drilling and completion operations, personnel and technical review; project management; and creative establishment of project relationships through partnering and innovation. Dr. Samuel has also been responsible for analyzing offerings for key technologies with niche capabilities and developing synergistic, strategic relationships in the energy industry. In 2013, he received the Gulf Coast SPE Drilling Engineering Award and in 2014 he received the Distinguished Lecturer award from the Society of Petroleum Engineers. Dr. Samuel has taught on the faculty of various universities and holds an adjunct professor appointment (concurrently) for the past 12 years, at the University of Houston. He has published more than 150 technical papers, reports, books, holds 6 patents, and 75 patents pending applications. Dr. Samuel serves regularly as a keynote speaker at major conferences and corporate forums and is regarded as one of the world’s most influential contributors to advancement of research and practice in drilling engineering. He is presently serving on several Editorial Review Committees, notably: on the Board of Directors in Research Partnership to Secure Energy for America (RPSEA), a Advisory committee member at Ocean Energy Safety Institute (OESI) and a representative at Society of Petroleum Engineer’s Research and development advisory board. Dr. Samuel’s unique blend of skills with broad experience as a field engineer, thinker, thought leader, innovator, researcher, educator and educationist has given him the ability to author twelve drilling books. He holds BS and MS degrees in Mechanical Engineering, as well as MS and PhD degrees in Petroleum Engineering.


M.S. and Ph.D. in Petroleum Engineering, University of Tulsa
M.S. in Mechanical Engineering from the College of Engineering Guindy (Madras)
B.S. in Mechanical Engineering from the University of Madurai

Selected Publications: 

Books: 1. “Drilling Engineering” J.J.Azar, G.Robello Samuel, (Pennwell Publishers – 2007) 2. “Downhole Drilling Tools – Theory and Practice for Engineers and Students” , G.Robello Samuel, (Gulf Publishing 2007) 3. “Advanced Drilling Engineering-Designs and Applications” G.Robello Samuel, Xiushan Liu (Gulf Publishing- 2009) 4. “Formulas and Calculations for Drilling Operations” G.Robello Samuel,(Wiley-Scrinever- 2009) 5. “Drilling Engineering Optimization” G.Robello Samuel, J.J.Azar, (Pennwell Publishers – under review) 6. “Horizontal Well Engineering” G.Robello Samuel, Deli Gao, (SigmaQuadrant Publishing) 7. “Drilling Engineering – Solutions and Applications” Robello Samuel, Halliburton Publication, 2014 8. “Fundamentals of Drilling Technology – Segment 1” – Petex – UT Austin Publication.2014. 9. “Horizontal Drilling Engineering – Solutions and Applications” Robello Samuel, Halliburton Publication, 2015. 10. “501 Solved Problems and Calculations for Drilling Operations - SigmaQuadrant Publication, 2015. 11. “Advances in Well Control” (Digital Edition) Robello Samuel, Otto Luiz Alcântara Santos, Jerome Schubert, Aniket Kumar, 2014,ISBN:978-1-61399-387-3,Society of Petroleum Engineers. 12. Positive Displacement Motors – Theory and Designs” Robello Samuel, Dmitry Baldenko, F.Baldenko, SigmaQuadrant Publisher.2015


Technical Conference, Florence Italy 2010. • “Friction Factors-What are they for Torque, Drag, Vibration, Drill Ahead, Transient Swab/Surge Analysis” SPE 128059, accepted for IADC/SPE conference, New Orleans 2010. • “Catenary Well Profiles for Ultra-Extended Reach Wells” Xiushan Liu, Robello Samuel, SPE 124313, Annual Technical Conference, New Orleans 2009. • “Effect of Eccentricity and Rotation on Annular Friction Pressure Losses with Stand-off Devices, Ajay Singh, Robello Samuel, SPE 124190, Annual Technical Conference, New Orleans 2009. • “Wellbore Drilling Indices, Tortuosity, Torsion and Energy: What Do They have to Do with Wellpath Design?”Robello Samuel, SPE124710, Annual Technical Conference, New Orleans 2009. • “Pipe Sticking Prediction and Avoidance Using Adaptive Fuzzy Logic Model” A.Murillo, J.Newman, Robello Samuel, SPE 120128, Production Operation Symposium, Oklahoma City, 2009. • “Ultra Extended Reach Drilling (u-ERD: Tunnel in the Earth) - A New Wellpath Design”, Robello Samuel, SPE 119421, IADC Amsterdam 2008. • “Tracking Drilling Efficiency Using Hydro-Mechanical Specific Energy”, Kshitij Mohan, Faraaz Adil, Robello Samuel, SPE 115714, IADC Amsterdam 2008. • “Actual 3D Shape of Wellbore Trajectory: An Objective Description for Complex Steered Wells” Xisuhan Liu, Robello Samuel, SPE 115714, Annual Technical Conference, Denver 2008. • ""Annular-Pressure-Loss Predictions for Various Standoff Devices"" Dongping Yao, G.Robello Samuel, IADC 2008 Conference. • “Surge and Drag Analysis for Extended Reach Casing and Casing Flotation Operations with centralizers: A Design Challenge? G.Robello Samuel, Colin Mason, SPE 101080, Annual Technical Conference, 2007. • “Modeling of Expandable Slotted Tubulars” Lif Zifeng, Dongping Yao, G.Robello Samuel, SPE 101080, Annual Technical Conference, 2007. • “Robust Well Cost Estimation Using Support Vector Machine Model” Sandipan Laskar, Pradeep Buddaraju, G.Robello Samuel, SPE 106577, SPE Digital Energy Conference and Exhibition, Houston, April 2007. • “How Good is the Torque-Drag Model?” Robert F. Mitchell, Robello Samuel, SPE105068, 2001 IADC/SPE conference in Netherlands, Feb. 2007. • “Integral Centralizer Sub and Enhanced Torque and Drag Calculations Improve Casing Installation”, Deep offshore Technology International Conference and Exhibition, Hank Rogers, Adil Bayramov, G.Robello Samuel • “Vibration Analysis Model Prediction and Avoidance: A Case History” G.Robello Samuel, Gary Schottle, D.B.Gupta, SPE 102134, IADC India Conference, Mumbai, India, 2006. • “Harvesting Wasted Energy Downhole” Robello Samuel, E&P Hart, February 2006. • “Stuck Pipe Prediction and Avoidance: A Convolutional neural Network Approach” Sekhar Nagarakanti, Chakarpani Siruvuari, Robello Samuel, IADC 2006 conference. • “Design and Performance Evaluation of an Ultradeepwater Subsea Blowout Preventor Control System Using Shape Memory Alloy Actuators Ning Ma, Ziping Hu, G.Robello Samuel, Christine A. Ehlig-Economides, Gangbing Song, SPE 101080, Annual Technical Conference, 2006. • “An Innovative Ultra Deepwater Subsea Blowout Preventer (BOP) Control System Using Shape Memory Alloy Actuators” Gangbing Song, Ziping Hu, Kai Sun, Ning Ma, Michael Economides, Robello Samuel, Christine Economides, IADC 2006 Miami, Conference. • “Tortuosity Factors for Highly Tortuous Wells: A Practical Approach” G.Robello Samuel, Kaiwan Bharucha, Yuejin Luo, SPE 92565, SPE IADC 2005 Conference, Amsterdam. • “Effect of Stress Concentration Factors due to Corrosion for Production Tubing Design”, Kai Sun University of Houston, Robello Samuel, SPE 90094, SPE Annual Technical Conference, September 2004. • “Accelerating Drilling Technology with eKnowledge Factory: A Changing Paradigm”, Robello Samuel, Glenn McColpin, SPE 90048, SPE Annual Technical Conference, September 2004. • “The Effect of Hole Curvature on the Wellbore Pressure Loss Prediction for Highly Tortuous Ultradeep Wells” Robello Samuel, IADC/SPE 87183, Dallas, March 2004 • “A simple practical approach provides a technique for calibrating tortuosity factors Yuejin Luo, BP, Kaiwan Bharucha, Robello Samuel, Faris Bajwa - Oil & Gas Journal, Sep 15, 2003. • “Model accurately predicts intermediate casing-run surge pressure in Marlin SS-1 well” G. Robello Samuel, Faris Bajwa, John LeBlanc, Mark Franklin, Oil and Gas Journal, Aug. 26, 2002. • “Multistring Casing Design for Deep Water and Ultra Deep HPHT Wells” G. Robello Samuel, Adolfo Gonzales, Scot Ellis, Issa Kalil Synopsis Journal of Petroleum Technology May 2002. • “Method Optimizes hydraulics with PDM and bit” G. Robello Samuel, Glenn McColpin, Oil & Gas Journal, Apr.8 2002. • “A Study of Surge Pressure Analysis while Running 13 5/8 Inch Casing in Marlin SS-1”John LeBlanc, Mark Franklin, Faris Bajwa, G. Robello Samuel” Wellconnected May 2002 • “Dynamic Swab-Surge model: Validation/field examples” G. Robello Samuel, Glenn McColpin, Peter Bern, World Oil December 2001. • “Multistring Casing Design for Deep Water and Ultra Deep HPHT Wells” G. Robello Samuel, Adolfo Gonzales, Scot Ellis, Issa Kalil SPE74490, SPE 2002 IADC Conference. • “Wellbore Hydraulic Optimization with Downhole Motor and Bit” G. Robello Samuel, Glenn McColpin SPE72320, IADC/SPE Middle East Drilling Technology Conference, 2001. • “Method Characterizes Well While Drilling” G. Robello Samuel, Stefan Miska; American Oil & Gas Reporter January 2001. • “Field Validation of Swab/Surge Pressure Response with PWD data” G.Robello Samuel, Ashwin Suntharkar, Peter Bern, Tim Flynn. SPE67717, 2001 IADC/SPE conference in Netherlands. • “Be Dynamic-Surge Analysis” Peter Bern,” Robello Samuel WellConnected, January 2001. • “Wellhead Growth Index aids in Casing Design” Robello Samuel, Adolfo Gonzales, Oil and Gas Journal, Oct.30, 2000. • “Multistring-Casing Design Optimization with Wellhead Growth” G.Robello Samuel, Adolfo Gonzales, Journal of Petroleum Technology May 2000. • “WellPlan-Hydraulics Improvement” G.Robello Samuel, Peter Bern, WellConnected, April 2000. • “Design Modification and Analysis of Downhole Motor for Underbalanced Drilling” G. Robello Samuel, Stefan Miska; SPE/ICoTA Conference Houston, April 2000. • “Formation Characterization of A Horizontal Well While Drilling: An On-site Tool” G. Robello Samuel, Stefan Miska; SPE59129, IADC/SPE Conference New Orleans, March 2000. • “Analytical Study of the Performance of Positive Displacement Motor (PDM): Modeling for Compressible Fluid” G. Robello Samuel, Stefan Miska; ASME/OAME 2000 Conference, New Orleans, March 2000. • “Optimization of Multistring Casing Design with Wellhead Growth” G.Robello Samuel, Adolfo Gonzales, SPE56762. SPE Annual Conference, Houston, October 1999. • “Rubbing Forces Provide Insights into PDM Wear Analysis” G.Robello Samuel, Stefan Miska, Oil and Gas Journal, Apr.19, 1999. • “Optimization of Drilling Parameters with the Performance of Multilobe Positive Displacement Motor (PDM)” G.Robello Samuel, Stefan Miska, IADC/SPE 47791 IADC/SPE Jakarta, Sept.1998, Eastern Regional SPE meeting, Pittsburgh, Nov.1998 and Mid-continent SPE Symposium March 1999. • “Evaluation and Prediction of The Performance of Positive Displacement Motor (PDM)” J.Li, Hong Xu, G.Robello Samuel, SPE 50408 SPE/CIM-Horizontal Well Conference, Calgary, Sept. 1998. • “Performance Index provide engineers tool to select PDM and track performance” G.Robello Samuel, Stefan Miska and Jeff Li, Oil and Gas Journal, Aug.31, 1998. • “Progressing Cavity Pump (PCP): New Performance Equations for Optimal Design” G.Robello Samuel, Ken Saveth, SPE 39786, SPE- Permian Basin Conference, Midland, March 1998. • “Short-Radius Laterals: An Operator’s Experience” Journal of Petroleum Technology, July 1997. • “Analytical Study of the Performance of Positive Displacement Motor (PDM): Modeling for Incompressible Fluid” G. Robello Samuel, Stefan Miska; SPE 39026 SPE – LACPEC, 1997. Brazil. • “Drilling Ultra Short Radius Dual Lateral Wells in Oklahoma - An Operator’s Experience”, Charles Ellis, G. Robello Samuel. SPE 37493-Production Operations Symposium, Oklahoma, 1997. • “A Practical Technique to Estimate the Formation Thickness in a Kicking Well.” G. Robello Samuel, Stefan Miska; SPE 37472-Production Operations Symposium Oklahoma, 1997. • “The Experimental Investigation of Thermal Insulation on a Diesel Engine Liner.” G. Robello Samuel, ASME - Energy Week Conference at Houston. January 1997. • “An Approach to the Design and Selection of Different Slim Downhole Motors for Coiled Tubing Drilling.” Alfredo Sanchez, G. Robello Samuel, Philip Johnson; SPE 37054 - 2nd International Three-Day Conference and Exhibition on Horizontal Well Technology, Calgary, Canada, Nov. 18-20, 1996 • “Modeling of Pressure Buildup in A Kicking Well and Its Practical Application.” Stefan Miska, G. Robello Samuel, Azar, J.J; SPE 35245 - Permian Basin Conference, Midland, 1996. • “Percussion Drilling. Is It A lost Technique?... A Review.” G. Robello Samuel; SPE 35240- Permian Basin Conference, Midland, 1996. Reports: • “Performance Modeling of Positive Displacement Motor (PDM)” Tulsa University Drilling Research Projects (TUDRP) -Advisory Board Meeting Report, Nov.1995, May 1996, Nov. 1997, May 1997, Nov. 1997. • “Advanced Horizontal Coiled Tubing Drilling System” Stefan Miska, G. Robello Samuel, Weiyong Qiu; U.S. Department of Energy, Annual Report; 1996, 1997. • “Modeling and Design of High Performance Positive Displacement Motor” RFFP submitted to Gas Research Institute, Chicago, 1996. • “Comprehensive Program for Sizing Electrical Submersible Pump”, G. Robello Samuel, Report, Tulsa University Artificial Lift Projects. May, 1995. • “Advanced Horizontal Coiled Tubing Drilling System” Stefan Miska, G. Robello Samuel, Weiyong Qiu, Sanchez A, Azouz I, Johnson P; U.S. Department of Energy, Annual Report. 1995 • “Change Over of Production Casing from 7.5” to 5” for Cauvery Basin Onland Wells” G. Robello Samuel, S.V.S.H.S. Raju; Report. ONGC (India), 1992. "