Doctorate Students

FranFrancisco D. Tovar is a PhD student researching the application of carbon dioxide to enhance liquid hydrocarbon recovery from unconventional tight reservoir rocks such a shale oil. The deviations of the phase behavior and properties of hydrocarbon fluids under confinement in meso and micro-porous materials, and the evaluation and improvement of the laboratory techniques to effectively measure petrophysical properties of tight reservoir rocks. He holds a MSc in Petroleum Engineering from Texas A&M University (2014), for which his research focused in the evaluation of combination of polymer-carbon dioxide injection to improve mobility control during carbon dioxide flooding.  Francisco obtained his BS in Petroleum Engineering from Universidad de Oriente in Eastern Venezuela (2004) and worked for six years in industry. His projects included the design of chemical EOR through the execution of laboratory experiments. Selection of most suitable EOR technique for application in particular reservoirs, surveillance plan design and analysis for reservoir characterization., design and optimization of exploitation schemes. He also has field experience in operations related to reservoir engineering.


JAJohannes Alvarez is a Graduate Research Assistant and PhD student at Texas A&M University in Petroleum Engineering. He holds a B.Sc. degree from Universidad Simon Bolivar, Venezuela, and a M.Sc. degree from Stanford University, USA, both in Chemical Engineering as well as studies in Project Management from UC Berkeley. Previously, he worked for 11 years in Petroleos de Venezuela S.A. (PDVSA) as Process and Infrastructure Engineer, Production Engineering District Manager and lately as Planning and Budget Division Manager. Mr. Alvarez is a member of the Society of Petroleum Engineers and the 2015-2016 SPE TAMU Graduate Representative. His research interests include fracture fluid performance with surfactant additives in unconventional liquid reservoirs in the US (Eagle Ford, Wolf Camp, Bakken and Barnett) to maximize well performance after stimulation, improved oil recovery in shale formations, wettability alteration, surface chemistry, and X-Ray tomography methods.


JianleiJianlei sun is a PhD candidate in the Department of Petroleum at Texas A&M University. Previously, he worked for ConocoPhillips and ExxonMobil. His research interests include fracture characterization and simulation, gridding and upscaling algorithms, and EOR techniques in unconventional reservoirs. He holds a BS degree from China University of Petroleum, and a MS degree from Texas Tech University, both in petroleum engineering. Sun is a member of SPE.



ZuhairZuhair Al Yousef is a PhD student at Texas A&M University in Petroleum Engineering. He holds an honorary B.S. degree from King Fahd University of Petroleum and Minerals, Saudi Arabia in 2008 and a Master of Science degree from Texas A&M University in 2012.  Zuhair has been a part of several internships with Saudi Aramco during his academic years. After graduating with the B.S degree, Zuhair Joined Saudi Aramco and worked as a Researcher at EXPEC Advanced Research Center. Then, he joined Reservoir Management Department as a Reservoir Engineer. He has published and co-authored technical papers. His research focuses on gas mobility control for Enhancing Oil Recovery using direct viscosifying techniques, Nanoparticles & surfactants. Currently, His research focuses on improving surfactants foam performance by mixing nanoparticles and surfactants to generate stable and strong foams for gas mobility control in conventional reservoirs.


MohammedMohammed A Almobarky is a PhD student in Harold Vance Department of Petroleum Engineering at Texas A&M University. He holds a B.Sc. and M.Sc. degrees in Petroleum Engineering from King Saud University, Saudi Arabia. Mohammed is a lecturer in the Petroleum and Natural Gas Engineering Department in King Saud University in Saudi Arabia since 2004. He has been involved in teaching several petroleum engineering courses as a teaching assistant before he was obtained scholarship for PhD in Texas A&M University. Moreover, he has been a part of several internships with the Arabian Drilling Company, affiliated with Schlumberger (Dhahran, Saudi Arabia), and Research & Development Center in Saudi Aramco (Dhahran, Saudi Arabia). His research interests focuses on EOR by miscible CO2 flooding and Mobility Control using foam flooding. Currently, Mohammed is investigating several foaming agents (i.e. surfactants) to enhance their ability to generate more stable and stronger in-situ foam in absence and presence of crude oil. Mohammed is familiar with Slimtube MMP experiment, core flood experiment, IFT measurements, zeta potential testing, gas mobility, and viscosity.


SergeySergey Parsegov focuses his research in hydraulic fracturing, including geomechanical problems of hydraulic fracture initiation and propagation through naturally fractured reservoirs. He obtained his MSc degree in Petroleum Engineering and BSc (both with honors) from Moscow Institute of Physics and Technology, Russia. He is responsible for experimental part of Crisman Institute for Petroleum Research project 2.5.25. He conducts: Rock mechanics lab experiments; Energy Dispersive Spectroscopy (EDS) on the SEM measurements and Computer tomography (CT) and micro-CT scanning of cores.

Sergey started his career as reservoir engineer and petroleum economics analyst at LUKOIL (LON: LKOH). After working in petroleum companies he moved on to investment analysis of petroleum exploration and production projects. He became Chartered Financial Analyst (CFA) charterholder in 2010. Prior to beginning the PhD program Sergey leaded consulting projects, including project management solutions implementation in Gazpromneft (LSE: GAZ).


SangyupSangyup Lee is a Graduate Research Assistant and Ph.D. student at Texas A&M University in Petroleum Engineering. He holds a B.S. degree in Civil Engineering and a M.S. degree in Geotechnical Engineering from Korea University, South Korea. Sangyup had an internships with Chevron (Bakersfield, CA, USA). His research focuses on developing the equivalent permeability estimation code and developing the iteratively coupled fluid flow and geomechanics using fractal and statistical methods. He calculates the equivalent directional permeability distribution of discrete fracture map data and reflects the heterogeneous characteristics of fracture geometry in permeability calculation. He estimates the interaction effect between fluid flow and geomechanics on production performance through coupling simulations and calculates sensitivity of property effect on the production performance through sensitivity studies. His internship project was also related to development of coupled simulation model: Investigate the Mechanism of Subsidence of Diatomite Reservoir in Lost Hills (LH) using Fully Coupled GMRS (Geomechanical Reservoir Simulator).


DoniPahala “Doni” Sinurat  is a PhD student at Petroleum Engineering Department Texas A&M University. He holds an MSc degree from Texas A&M University and BSc degree from Institut Teknologi Bandung (ITB) all in Petroleum Engineering.  Doni worked  for Medco E&P Indonesia from 2002 to 2011 as Production Engineer, Reservoir  Engineer and Petrophysicist. He is currently a Faculty member candidate for ITB. Currently, under Dr David Schechter supervision, Doni’s research focuses on the transition zone analysis modeling in a supercrtitical CO2-water carbonate reservoir system. He started his PhD program in 2012. Previously in the first 2 years of his PhD program, he worked with Dr Robert A. Wattenbarger in developing analytical model for shale gas and oil wells.