Evren Ozbayoglu, PhD
Evren M. Ozbayoglu is currently a “Chapman Endowed Wellspring Professor” of The University of Tulsa (TU), McDougall School of Petroleum Engineering, and the Director of The University of Tulsa, Drilling Research Projects (TUDRP). He has earned his BSc in 1996 and MSc in 1998 from METU. He earned his PhD degree from The University of Tulsa in 2002. He started working at METU as a full time faculty, and continued working at METU till 2009 August. Since then, he is working for TU. Dr. Ozbayoglu has numerous publications and participated in several industrial projects on major drilling engineering topics as well as wellbore hydraulics, hole cleaning, and tubular mechanics. He was awarded for SPE Regional Drilling Engineer Award, 2019, “Outstanding Technical Editor Award” for SPE Journal, SPE Reservoir Application & Engineering, and SPE Drilling & Completion for years 2012, 2013, 2015, 2018, “SPE Regional Distinguished Faculty Award – Mid-Continent Region – 2013” within 2012-2013 academic year. He is an SPE member since 1994, and ASME member since 2015.
Fluid and Solid Mechanics
Directional Horizontal Drilling
BaldinoS., MiskaS., OzbayogluM., and ZhangJ. Borehole-Breathing/Kick Discriminator: Diagnostic Tool and Potential Resource for In-Situ Formation Characterization. SPE Drilling and Completion, 2019.
TombulH., OzbayogluM., and OzbayogluM. Computational Intelligence Models for PIV Based Particle (Cuttings) Direction and Velocity Estimation in Multi-Phase Flows. Vol. 172, Journal of Petroleum Science and Engineering, 2019, pp. 547-58.
BbosaB., OzbayogluM., and VolkM. Experimental Investigation of Hydrate Formation, Plugging and Flow Properties Using a High-Pressure Viscometer With Helical Impeller. Vol. 2, Journal of Petroleum Exploration and Production Technology, 2018, pp. 1089-04.
OzbayogluM., ErgeO., and OzbayogluM. Predicting the Pressure Losses While the Drillstring Is Buckled and Rotating Using Artificial Intelligence Methods. Vol. 56, [Window Title] BSvcProcessor [Main Instruction] BSvcProcessor has stopped working [Content] Windows is checking for a solution to the problem… [Cancel], 2018, pp. 72-80.
Equivalent Circulating Density Modeling of Yield Power Law Fluids Validated With CFD Approach. Vol. 140, Journal of Petroleum Science and Engineering, 2016, pp. 16–27.
Laminar to Turbulent Transition of Yield Power Law Fluids in Annuli. Vol. 128, Journal of Petroleum Science and Engineering, 2015, pp. 128–139.
Osgouei, Reza et al. “Pressure Drop Estimation in Horizontal Annuli for Liquid–Gas 2 Phase Flow: Comparison of Mechanistic Models and Computational Intelligence Techniques.” Computers & Fluids 112 (2015): 108–115. Print.
Pressure Profile in Annulus: Solids Play a Significant Role. Vol. 137, Journal of Energy Resources Technology, 2015, p. 064502.
The Effects of Drillstring-Eccentricity,-Rotation, and-Buckling Configurations on Annular Frictional Pressure Losses While Circulating Yield-Power-Law Fluids. Vol. 30, SPE Drilling & Completion, 2015, pp. 257–271.
Buckling of Buoyancy-Assisted Tubulars. Vol. 29, SPE Drilling & Completion, 2014, pp. 372–385.
Effect of Drillstring Deflection and Rotary Speed on Annular Frictional Pressure Losses. Vol. 136, Journal of Energy Resources Technology, 2014, p. 042909.
OzbayogluM., Ettehadi OsgoueiR., OzbayogluM., and YukselE. Hole-Cleaning Performance of Gasified Drilling Fluids in Horizontal Well Sections. Vol. 17, SPE Journal, 2012, pp. 912–923.
SorgunM., AydinI., OzbayogluM., and SchubertJ. Mathematical Modeling of Turbulent Flows of Newtonian Fluids in a Concentric Annulus With Pipe Rotation. Vol. 34, Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 2012, pp. 540–548.
SorgunM., AydinI., and OzbayogluM. Friction Factors for Hydraulic Calculations Considering Presence of Cuttings and Pipe Rotation in horizontal/Highly-Inclined Wellbores. Vol. 78, Journal of petroleum science and engineering, 2011, pp. 407–414.
OzbayogluM., SaasenA., SorgunM., and SvanesK. Critical Fluid Velocities for Removing Cuttings Bed Inside Horizontal and Deviated Wells. Vol. 28, Petroleum Science and Technology, 2010, pp. 594–602.
OzbayogluM., SorgunM., SaasenA., and SvanesK. Hole Cleaning Performance of Light-Weight Drilling Fluids During Horizontal Underbalanced Drilling. Vol. 49, Journal of Canadian Petroleum Technology, 2010, pp. 21–26.
OzbayogluM., and OzbayogluM. Estimating Flow Patterns and Frictional Pressure Losses of Two-Phase Fluids in Horizontal Wellbores Using Artificial Neural Networks. Vol. 27, Petroleum Science and Technology, 2009, pp. 135–149.
OzbayogluM., AkinS., and ErenT. Image Processing Techniques in Foam Characterization. Vol. 29, Energy Sources, Part A, 2007, pp. 1175–1185.
Using Foam in Horizontal Well Drilling: A Cuttings Transport Modeling Approach. Vol. 46, Journal of Petroleum Science and Engineering, 2005, pp. 267–282.
A Comparative Study of Hydraulic Models for Foam Drilling. Vol. 41, Journal of Canadian Petroleum Technology, 2002.
“On the Instability of Cement-Fluid Interface and Fluid Mixing”. SPE Deepwater Drilling and Completions Conference, 2016.
Karimi Vajargah, A et al. “Feasibility Study of Applying Intelligent Drill Pipe in Early Detection of Gas Influx during Conventional Drilling.” SPE/IADC Drilling Conference. 2013. Print.
“Feasibility Study of Applying Intelligent Drill Pipe in Early Detection of Gas Influx During Conventional Drilling”. SPE/IADC Drilling Conference, 2013.
ErenT., and OzbayogluM. “Real Time Optimization of Drilling Parameters During Drilling Operations”. SPE Oil and Gas India Conference and Exhibition, 2010.
- Research and Thesis
- Independent Study
- Research and Dissertation
- Advanced Drilling
- Special Topics in Petroleum Engineering
- Well Complete Dsgn Quiz
- Well Construction and Completion Design
- American Society of Mechanical Engineers
- Society of Petroleum Engineers
Awards & Honors
- Outstanding Technical Editor Award
- Regional Drilling Engineering
- Chevron Fellowship
- Regional Distinguished Faculty Award