My interests primarily involve the integration of geologic information with quantitative tools for seismic reservoir characterization. This area of research includes both forward and inverse problems, which combine rock physics, stochastic geologic modeling, seismic inversion, and wave-propagation modeling. Importantly, we work with and integrate data at scales from high resolution images of rock samples (sub-micron scale) to the surface seismic scale (tens of meters). Across these scales, we develop effective medium models and numerical techniques to model and invert for elastic properties with the ultimate goal of obtaining heterogeneous and anisotropic rock properties.

Areas of Expertise

Exploration Geophysics, in particular rock physics applications and seismic inversion techniques for reservoir characterization.

Current Research Programs & Projects

RPSEA Unconventional Onshore Program Connectivity between fractures and pores in hydrocarbon-rich mudrocks, (with H. Daigle PI, N. Hayman, J. Gale, P. Eichhubl, K. Milliken CO-PIs).

Shell-UT Unconventional Research, Seismic inversion constrained by novel rock physics modeling and geostatistical simulation in liquid-rich shales, (with M. Sen PI, S. Srinivasan and C. Verdin CO-PIs).

Exploration and Development Geophysics Education and Research (EDGER) Consortium (with M. Sen and R. Tatham) ( view )

Select Past Research

American Chemical Society, Petroleum Research Fund Rock-physics and seismic modeling of the Haynesville Shale

Member, Travel Grants Committee, SEG (2012)

Member, Adhoc Committee, Energy Theme (2012)

Member, Technical Program Committee, SEG (2011 - 2013)

Co-Chair (Faculty), Committee on University and Student Programs, SEG (2010 - 2012)

Faculty Advisor, UT SEG Student Chapter (2009)

Member, Committe on University and Student Programs, SEG (2009)

Graduate Students

David Tang, Ph.D., expected 2018 (Supervisor)

Han Liu, Ph.D., expected 2017 (Co-supervisor)

Menal Gupta, Ph.D., expected 2017 (Committee Member)
For my PhD work, I use multi-component seismic data to understand the angle dependent reflectivity of different pure and converted Shear-wave modes and its linkage to subsurface fractures and their properties. My research also includes extracting and analyzing direct S-wave modes like S-S and Sv-P generated by conventional P-wave sources to testing their feasibility as a viable S-wave data that provide a low cost alternative to shear wave seismic acquisition surveys. Previously, I have been worked in different roles as exploration, development, production, and research geophysicist for both integrated and independent oil and gas companies. Some of the key projects I delivered include: 2D/3D structural interpretation, velocity modeling, AVO, rock & fluid physics, 4D seismic interpretation, pressure and saturation decoupling, multi-component seismic analysis, seismic inversion, characterization of clastic and carbonate sedimentary systems, sequence stratigraphic analysis, play analysis, and petroleum systems analyses.

Andrew Yanke, M.S., expected 2016 (Supervisor)
My current research interests focus on bridging the gap between rock physics (small scale) and large scale seismic attributes. This problem of scale necessitates an integrated understanding of rock physics models (i.e. both isotropic and anisotropic) and their affects on seismic wave propagation. In broader terms, my research hinges on forward and inverse modeling between subsurface rock properties and surface-seismic measurements (i.e. related to acoustic properties of the subsurface). This area of study applies to petroleum systems, hydrogeologic settings, CO2 sequestration efforts, and other fields of active interest.

Qi Ren, Ph.D., expected 2016 (Co-supervisor)

Russell W Carter, Ph.D., expected 2015 (Supervisor)

Sarah B Coyle, M.S., expected 2014 (Supervisor)

Elliot Dahl (Supervisor)

Barry M Borgman (Supervisor)

Meijuan Jiang, Ph.D., 2014 (Supervisor)
The University of Texas at Austin

Lauren Becker, M.S., 2014 (Supervisor)
The University of Texas at Austin

Kwon Taek Oh, M.S., 2012 (Supervisor)
The University of Texas at Austin

2016Fall GEO 394 Rsch In Geological Sciences
2016Fall GEO 384N Rock Physics
2016Fall GEO 384C Seismology I
2016Fall GEO 465K Seismic Exploration
2016Summer GEO f661B Geophysics Field Camp
2016Spring GEO 394 Rsch In Geophysical Techniques
2015Fall GEO 394 Rsch In Geological Sciences
2015Fall GEO 384U Quantitatv Seismic Intrpretatn
2015Fall GEO 384C Seismology I
2015Fall GEO 465K Seismic Exploration
2015Summer GEO f661B Geophysics Field Camp
2015Summer GEO f661A Geophysics Field Camp
2015Spring GEO 394 Rsch In Geophysical Techniques
2014Fall GEO 465K Seismic Exploration
2014Fall GEO 384C Seismology I
2014Fall GEO 384N Rock Physics
2014Fall GEO 394 Rsch In Geophysical Techniques
2014Summer GEO f661A Geophysics Field Camp
2014Spring GEO 394 Rsch In Geophysical Techniques
2014Spring GEO 193 Technical Sessions