Researchers

Professor

William  Preeg

William Preeg

Ph.D., Senior Lecturer Petroleum & Geosystems Engineering Department University of Texas at Austin
Co-Supervisor of Research Projects
Kamy Sepehrnoori

Kamy Sepehrnoori

Ph.D., Petroleum Engineering, University of Texas at Austin
Co-Supervisor of Research Projects
Professor of the Petroleum & Geosystems Engineering Department
Matthew Balhoff

Matthew Balhoff

Ph.D., Associate Professor, Petroleum & Geosystems Engineering Dept., University of Texas at Austin
Co-Supervisor of Research Projects
Nicolas Espinoza

Nicolas Espinoza

Ph.D., Assistant Professor, Petroleum & Geosystems Engineering Dept., University of Texas at Austin
Co-Supervisor of Research Projects
Erich Schneider

Erich Schneider

Ph.D., Associate Professor, Department of Mechanical Engineering University of Texas at Austin
Co-Supervisor of Research Projects
Ali Yilmaz

Ali Yilmaz

Ph.D., Associate Professor, Electrical & Computer Engineering Dept, University of Texas at Austin
Co-Supervisor of Research Projects

Ph.D.

Mohammad Albusairi

Mohammad Albusairi

Numerical simulation and interpretation of nuclear magnetic resonance measurements in heterogeneous formations. (Fall 2014 – Summer 2018)

Joshua Bautista

Joshua Bautista

Numerical simulation and interpretation of borehole spontaneous potential and resistivity measurements (Spring 2014 – Summer 2018).

Juan D Escobar

Fast Forward Modeling and Inversion of Formation-Tester Measurements. (Fall 2013 – Summer 2017).

Hyungjoo  Lee

Hyungjoo Lee

Estimation of in-situ fluid properties from combined interpretation of nuclear and magnetic resonance measurements (Spring 2014 – Fall 2017).

Mathilde  Luycx

Mathilde Luycx

Numerical simulation and interpretation of borehole nuclear measurements (Fall 2013 – Summer 2017).

Elsa  Maalouf

Elsa Maalouf

Numerical simulation and interpretation of sonic logs acquired in high-angle and horizontal wells (Fall 2013 – Summer 2017).

Colin Schroeder

Colin Schroeder

Interpretation of formation-tester measurements in the presence of invasion (Spring 2015 – Summer 2016).

Masters

Mohamed Bennis

Mohamed Bennis

Research topic to be defined (Fall 2015 – Summer 2017).

Adam McMullen

Adam McMullen

Research topic to be defined (Fall 2015 – Summer 2017).

Administrative Staff

Rey Casanova

Rey Casanova

Program coordinator.  August 2003 – Present.

Research Staff

Joaquin Ambia-Garrido

Joaquin Ambia-Garrido

Ph.D., Software Engineer: Algorithm development and software implementation of UTAPWeLS.  May 2014 - Present.

Bruce Klappauf

Bruce Klappauf

Ph.D., Software Engineer: Algorithm development and software implementation of UTAPWeLS. October 2014 - Present.

David Medellin

David Medellin

Ph.D.,Postdoctoral Fellow. Research Fellow: Acquisition, modeling, and interpretation of nuclear magnetic resonance measurements of rocks. January 2014– Present.

Ayaz Mehmani

Ayaz Mehmani

Ph.D.,Postdoctoral Fellow.  Conducting microfluidic and nanofluidic experiments to investigate pore-scale fluid physics of unconventional formations. (February 2016 - Present).

Roger Terzian

Roger Terzian

Ph.D., Software support, training, and development of UTAPWeLS.  August 2013 – Present.

Former Research Staff

Luis  Calcada

Luis Calcada

Ph.D., Visiting Professor-Universidade Federal Rural do Rio de Janeiro. Drilling and invasion in the presence of oil-base muds: January 2009 – March 2010.

Wilberth  Herrera

Wilberth Herrera

Ph.D., Research Fellow. Numerical simulation and interpretation of sonic logs.  December 2013 – January 2017.

Guodong  Jin

Guodong Jin

Ph.D., Postdoctoral Fellow. Numerical simulation of pore-scale phenomena: April 2006 - January 2009. 

Guangzhi  Liao

Guangzhi Liao

Visiting Ph.D. student-China University of Petroleum. Saturation effects on NMR measurements suing pore-level simulations. 

Jun Ma

Jun Ma

Ph.D., Research Associate. Numerical simulation and inversion of borehole sonic logs: February 2006 - 2014. 

Pawel  Matuszyk

Pawel Matuszyk

Ph.D., Research Associate. Finite-element numerical simulation of multi-physics borehole measurements: July 2008 – December 2013. 

Christian  Michler

Christian Michler

Ph.D.,Postdoctoral Fellow. Finite-element numerical simulation of borehole sonic phenomena: April 2006 - March 2008. 

Myung Jin Nam

Myung Jin Nam

Ph.D., Postdoctoral Fellow. 3D numerical simulation and inversion of borehole resistivity measurements with the hp-adaptive finite-element method. February 2007 – February 2009.

Maciej  Paszyński

Maciej Paszyński

Ph.D., Postdoctoral Fellow. Finite-element numerical simulation of borehole EM phenomena: June - August 2006. 

Gong Li  Wang

Gong Li Wang

Research Associate. Numerical simulation and inversion of resistivity and sonic logs: October 2005 - December 2008. 

Ruijia  Wang

Ruijia Wang

Ph.D., Postdoctoral Fellow. Novermber 2012– 2015.

Qinshan  Yang

Qinshan Yang

Ph.D., Postdoctoral Fellow. Bayesian inversion of borehole measurements: April 2010 – 2015.

Wei  Yang

Wei Yang

Ph.D., Postdoctoral Fellow. Numerical simulation and inversion of subsurface EM phenomena. February 2005 - Novemeber 2006.

Peimin  Zhu

Peimin Zhu

Ph.D., Postdoctoral Fellow. Joint inversion of density and borehole resistivity measurements using a Bayesian approach. March 2007 - September 2007

Visiting Scholars & Collaborators

Shaaban A. Bakr

Shaaban A. Bakr

Ph.D., Researcher with the Basque Center for Applied Mathematics, Bilbao, Spain.

Numerical simulation and inversion of LWD resistivity measurements (Summer 2015).

David Pardo

David Pardo

Ph.D., Research Professor with the University of the Basque Country, Bilbao, Spain.

Numerical simulation and inversion of LWD resistivity measurements (Summer 2015).

Ángel Rodríguez-Rozas

Ángel Rodríguez-Rozas

Ph.D., Researcher with the University of the Basque Country, Bilbao, Spain.

Numerical simulation and inversion of borehole resistivity measurements (Summer 2015).

Former Students

Haryanto  Adiguna

Haryanto Adiguna

Master’s Thesis: Comparative Study for the Interpretation of Mineral Concentrations, Total Porosity, and TOC in Hydrocarbon-Bearing Shale from Conventional Well Logs (Fall 2010 – Summer 2012).

Oyinkansola  Ajayi

Oyinkansola Ajayi

Ph.D. Thesis: Numerical Simulation and Interpretation of Neutron-Induced Gamma-Ray Spectroscopy Measurements (Fall 2009 – Summer 2015).

Omer F Alpak

Omer F Alpak

Ph.D. Thesis: Ph.D. Thesis: A Multi-Physics Inversion Approach for the Joint Petrophysical Interpretation of Electromagnetic and Fluid-Flow Measurements (Spring 2000 – Fall 2004).

Renzo Angeles-Boza

Renzo Angeles-Boza

Ph.D. Thesis: Simulation and Interpretation of Formation-Tester Measurements Acquired in the Presence of Mud-Filtrate Invasion, Multi-Phase Flow, and Deviated Wellbores (Fall 2005 – Spring 2009).

Abhishek  Bansal

Abhishek Bansal

Masters Thesis: Improved Petrophysical Evaluation of Consolidated Calcareous Turbidite Sequences with Multi-Component Induction, NMR, Resistivity Images, and Core Measurements (Fall 2010 –December 2012).

Olga  M Campos

Olga M Campos

Master’s Thesis: Spatial Distribution of Calcite Concretions Inferred from Borehole Image Data and Their Use in Reservoir Modeling: an Application to Breitbrunn Field (Spring 2001 – Fall 2002).

Arturo Contreras

Arturo Contreras

Ph.D. Thesis: Spatial Delineation, Fluid-Lithology Characterization, and Petrophysical Modeling of Deepwater Gulf of Mexico Reservoirs Through Joint AVA Deterministic and Stochastic Inversion of 3D Partially-Stacked Seismic Amplitude Data and Well Logs (Fall 2001 - Spring 2006).

Elton  Ferreria

Elton Ferreria

Master’s Thesis: Improved Estimation of Pore Connectivity and Permeability in Deepwater Carbonates with the Construction of Multi-Layer Static and Dynamic Petrophysical Models (Spring 2011 – Spring 2014).

Amir  Frooqnia

Amir Frooqnia

Ph.D. Thesis: Numerical Simulation and Interpretation of Borehole Fluid-Production Measurements (Spring 2010 – Spring 2014).

Maika Gambús-Ordaz

Maika Gambús-Ordaz

Ph.D. Thesis: Quantitative Integration of 3D seismic Data, Well-Logs, Geological Information, and Production Data: Assessing Uncertainty in Dynamic Behavior with Applications to a Gulf-of-Mexico Deepwater Gas Reservoir (Fall 1999 – Fall 2003).

Guozhong  Gao

Guozhong Gao

Ph.D. Thesis: Simulation of Borehole Electromagnetic Measurements in Dipping and Anisotropic Rock Formations and Inversion of Array Induction Data (Fall 2000 – Spring 2005).

Bovan  George

Bovan George

Master’s Thesis: A Case Study Integrating the Physics of Mud-Filtrate Invasion with the Physics of Resistivity Logging (Fall 2001 – Spring 2003).

Ankur Ghandi

Ankur Ghandi

Construction of Static and Dynamic Multi-Layer Petrophysical Models in Camisea Gas Reservoirs, Peru (Fall 2008 – Summer 2010).

David  Gonzalez

David Gonzalez

Masters Thesis: Quantitative methods for quantification of degree of lamination and volumetric concentration of shale (Spring 2013 – December 2015).

Alvaro Grijalba-Cuenca

Alvaro Grijalba-Cuenca

Master’s Thesis: Geostatistical Inversion for the Extrapolation of Petrophysical Variables Laterally Away From the Well (Fall 1999 – Fall 2000).

Hamid Hadibeik

Hamid Hadibeik

Ph.D. Thesis: Streamlined-Based Modeling and Interpretation of Formation-Tester Measurements (Spring 2010 – Fall 2013).

Zoya  Heidari

Zoya Heidari

Ph.D. Thesis: Estimation of Static and Dynamic Petrophysical Properties from Well Logs in Multi-Layer Formations (Fall 2007 – Summer 2011).

Shan  Huang

Shan Huang

Ph.D. Thesis: Fast Forward Modeling and Inversion of Borehole Sonic Measurements using Spatial Sensitivity Functions (Spring 2010 – Spring 2015).

Olabode  Ijasan

Olabode Ijasan

Ph.D. Thesis: Inversion-Based Petrophysical Interpretation of Logging-While-Drilling Nuclear and Resistivity Measurements (Spring 2010 – Summer 2013).

Kanay  Jerath

Kanay Jerath

Master’s Thesis: Reconciliation of Two-Dimensional NMR Measurements with the Process of Mud-Filtrate Invasion: Synthetic and Field Examples (Fall 2009 – Summer 2011).

Shaina  Kelly

Shaina Kelly

Ph.D. Thesis: Using Nanofluids and Microscopy to Study Unconventional Pore-Scale Transport Phenomena (Fall 2011 – Summer 2015).

Essi Kwabi

Essi Kwabi

Master’s Thesis: Mineral, Fluid, and Elastic Property Quantification from Well Logs and Core Data in the Eagle Ford Shale Play: a Comparative Study (Fall 2011 – Summer 2013).

Hee Jae Lee

Hee Jae Lee

Ph.D. Thesis: Simulation and Interpretation of Formation-Tester Measurements Acquired in the Presence of Mud-Filtrate Invasion and Geomechanical Deformation (Spring 2003 – Spring 2008).

Malek Lemkecher

Malek Lemkecher

Master’s Thesis: Interactive Interpretation of Nuclear Logs with Fast Modeling Procedures (Summer 2007 – Summer 2009).

Zhipeng Liu

Zhipeng Liu

Master’s Thesis: Joint Inversion of Density and Resistivity Logs for the Improved Petrophysical Assessment of Thinly-Bedded Clastic Rock Formations (Spring 2006 – Fall 2007).

Mayank  Malik

Mayank Malik

Ph.D. Thesis: Numerical Simulation and Interpretation of Formation-Tester Measurements Acquired in the Presence of Mud-Filtrate Invasion (Summer 2004 – Spring 2008).

Robert Mallan

Robert Mallan

Ph.D. Thesis: Interpretation of Multi-Component Induction and Sonic Measurements Acquired in High-Angle Wells and Joint 1D Radial Inversion of Resistivity and Sonic Logs (Fall 2005 – Spring 2010).

Philippe  Marouby

Philippe Marouby

Master’s Thesis: Estimation of Elastic Properties of Hydrocarbon-Bearing Shale by Combining Effective-Medium Calculations, Conventional Well Logs, and Dispersion Processing of Sonic Waveforms (Fall 2009 – Summer 2011).

Alberto Mendoza

Alberto Mendoza

Ph.D. Thesis: Rapid Numerical Simulation and Inversion of Nuclear Borehole Measurements Acquired in Vertical and Deviated Wells (Fall 2005 – Spring 2009).

German  Merletti

German Merletti

Master’s Thesis: Extrapolation of Elastic and Petrophysical Properties from Wells Using 3D Prestack Seismic Amplitude Data (Fall 2004 – Summer 2006).

Jordan  Mimoun

Jordan Mimoun

Masters Thesis: Quantitative Interpretation of Pulsed Neutron Capture Logs: Fast Numerical Simulation and Inversion in Thinly-Bedded Formations (Fall 2008 – Summer 2010).

Luis  Javier  Miranda

Luis Javier Miranda

Master’s Thesis: Mud-Filtrate Invasion Modeling to Quantify Static and Dynamical Petrophysical Properties of Fractured and Vuggy Carbonate Formations (Scholarship from Petroleos de Venezuela, S.A.) (Summer 2006 - Spring 2008).

Siddharth Mishra

Siddharth Mishra

Ph.D. Thesis: Wideband Directional Complex Electrical Conductivity of Geomaterials: a Mechanistic Description (Fall 2010 – Summer 2015).

Ali  Moinfar

Ali Moinfar

Master’s Thesis: Time-Lapse Variations of Multi-Component Electrical Resistivity Measurements Acquired in High-Angle Wells, August 2009.

Antoine  Montaut

Antoine Montaut

Masters Thesis: Estimation of elastic properties of hydrocarbon-bearing shale from well logs (Fall 2010 – Fall 2012).

Tobiloluwa  B Odumosu

Tobiloluwa B Odumosu

Master’s Thesis: Estimation of Dry-Rock Elastic Moduli Based on the Stimulation of Mud-Filtrate Invasion Effects on Borehole Acoustic Logs (Fall 2005 - Fall 2007).

Dipo  Olukitibi

Dipo Olukitibi

Construction of static multi-layer petrophysical models in multi-mineral formations (Fall 2012 - Spring 2014). 

Edwin  Ortega

Edwin Ortega

Ph.D. Thesis: Inversion-Based Petrophysical Interpretation of Multi-Detector Logging-While-Drilling Sigma Measurements (Spring 2010 - Spring 2014).

Mauro Palavecino

Mauro Palavecino

New methods of storage/flow rock classification (Fall 2014 - Summer 2016).

Andy	 Popielski

Andy Popielski

Master’s Thesis: Rock Classification from Conventional Well Logs in Hydrocarbon-Bearing Shale (Fall 2009 – Summer 2011).

Rohollah Abdollah  Pour

Rohollah Abdollah Pour

Ph.D. Thesis: Equation-of-State, Compositional, One-Dimensional Radial Flow Method to Simulate Invasion and Fluid Withdrawal in the Presence of Oil- or Water-Base Muds (Summer 2008 – Fall 2011).

Thaimar Ramirez

Thaimar Ramirez

Master’s Thesis:  Numerical Simulation of Dual-Packer Formation-Tester Measurements in the Presence of Naturally Fractured Formations (Spring 2003 – Fall 2004).

Vivek R. Ravi

Vivek R. Ravi

Mixing laws of nuclear magnetic resonance measurements (Fall 2014 – Fall 2016).

Jackline  Renno

Jackline Renno

Master’s Thesis: Sensitivity Analysis of Fluid Density from Multi-Phase Wireline Formation Tester Measurements in the Presence of Invasion (Fall 2003 – Summer 2004).

Amir Reza-Rahmani

Amir Reza-Rahmani

Master’s Report: Numerical Simulation of Water- and Oil-Base Mud-Filtrate Invasion in Vertical and High-Angle Wells and Corresponding Impact on Monopole and Dipole Sonic Waveforms (Fall 2007 – Summer 2009).

Jesus Mauricio  Salazar

Jesus Mauricio Salazar

Ph.D. Thesis: Simulation and Inversion of Borehole Electromagnetic Measurements for the Estimation of Petrophysical Properties in the Presence of Mud-Filtrate Invasion. (Fall 2004 - Fall 2008).

Jorge  Sanchez

Jorge Sanchez

Master’s Thesis: Field Examples of the Combined Petrophysical Inversion of Gamma-Ray, Density, and Resistivity Logs Acquired in Thinly-Bedded Clastic Rock Formations (Summer 2007 – Summer 2009).

Paul  Sayar

Paul Sayar

Ph.D. Thesis: Development of Effective Medium Models for Quantification of Elastic Properties and Modeling of Velocity Dispersion of Saturated Rocks (Fall 2011 – Summer 2015).

Vahid Shabro

Vahid Shabro

Ph.D. Thesis: Numerical Modeling of Petrophysical Properties with Applications to Hydrocarbon-Bearing Shale (Spring 2009 – Fall 2013).

Tatyana Torskaya

Tatyana Torskaya

Ph.D. Thesis: Pore-Scale Analysis of Grain Shape and Sorting Effects on Fluid Transport Phenomena in Porous Rocks (Fall 2006 – Fall 2013).

Emmanuel Toumelin

Emmanuel Toumelin

Ph.D. Thesis: Pore-Scale Petrophysical Models for the Simulation and Combined Interpretation of Nuclear Magnetic Resonance and Wide-Band Electromagnetic Measurements of Saturated Rocks (Fall 2001 – Spring 2006).

Echezona Uzoh

Echezona Uzoh

Master’s Thesis: Quantitative Studies of Relative Dip Angle and Bed-Thickness Effects on LWD Density Images Acquired in High-Angle and Horizontal Wells (Spring 2006 – Summer 2007).

Omar J Varela

Omar J Varela

Ph.D Thesis: Stochastic Inversion of Pre-Stack Seismic Data to Improve Forecasts of Reservoir Production (Fall 2000 – Summer 2003).

Nathan  Vrubel

Nathan Vrubel

Master’s Thesis: Statistical Partitioning of Well Logs and Core Measurements to Detect and Quantify Petrophysical Properties (Fall 2005 – Summer 2007).

Jianghui Wu

Jianghui Wu

Ph.D. Thesis: Numerical Simulation of Multi-Phase Mud-Filtrate Invasion and Inversion of Formation Tester Data (Fall 1999 – Spring 2004).

Chicheng Xu

Chicheng Xu

Ph.D. Thesis: Reservoir Description with Well-Log-Based and Core-Calibrated Petrophysical Rock Classification (Spring 2009 – Summer 2013).