Mrinal K Sen
Morgan J. Davis Centennial Chair in Geosciences (Holder)
Mailcode: R2200
Mrinal Sen is a specialist on seismic wave propagation including anisotropy, Geophysical inverse problems, and methods for constructing synthetic seismograms in heterogeneous media. His areas of research include classical whole earth seismology, applied seismology and inverse theory. Over the years, he worked on several geophysical parameter estimation problems. He and his colleagues were able to demonstrate that global optimization methods such as simulated annealing (SA) and genetic algorithms (GA) can be used effectively for several geophysical applications such as seismic waveform inversion, gravity interpretations, and seismic migration velocity analysis. He also showed how one could apply Gibbs' sampling and the Metropolis rule to characterize uncertainties and the posterior probability density function (PPD) in model space. He has extended seismic plane wave analysis methods to anisotropic media and developed techniques for estimating the parameters that determine the degree of anisotropy. His most recent accomplishments in exploration seismology include developing novel methods for characterizing reservoirs using seismic and well log data, estimating P- and S-wave velocity models for sediments containing gas hydrates from seismic reflection data, and, improving seismic imaging and velocity estimation methods in structurally complex areas. In whole earth seismology he has estimated the anisotropy in the D" region of the earth's deep interior. He is continuing to actively pursue research problems that require development of new analytic and numerical methods in both exploration and whole earth seismology. For example using seismic reflection data particularly from zones of gas hydrates, he is attempting to find high resolution compressional and shear wave velocities and relate these to gas and hydrate concentration levels and their distribution. For 3D exploration reflection seismic data he is attempting through model based inversion methods to relate these data to reservoir properties and their changes during production via seismic time lapse data. His recent works include: uncertainty quantification using trans-dimensional Hamiltonian Monte Carlo methods, error analysis of finite difference and finite element methods, and Physics-based machine learning for seismic data analysis.
Areas of Expertise
Seismic wave propagation including anisotropy, geophysical inverse problems, earthquakes and earth structure, applied seismology, petroleum exploration including 4D seismology
Current Research Programs & Projects
EDGER Forum ( view )Center for Frontiers of Subsurface Energy Security
Select Past Research
Joint Inversion of Seismic and Fluid Flow Data
Seismic Inversion for the Estimation of Crustal Velocity Structure
Seismic Modeling of Fractured Reservoirs
WEMI-Wave Equation Migration Inversion
Collaborative Research: ITR-:Data Driven Simulation of the Subsurface: Optimization and Uncertainty Estimation
Collaborative Research: CMG: Stochastic Representation of Parameter Uncertainty within Model Predictions of Future Climate
A Data Intense Challenge-Instrumented oil field of the future
Determination of Crustal Structure by Inversion of Shear-Coupled PL waves using global optimization
Integrated Approach to Petrophysical Interpretation of post- and pre-stack 3D Seismic Data, Well-Log Data, Core Data, Geological Information and reservoir production data via Bayesian stochastic inversion
Airrbore GPR for the detection of Underground Facilities
"Collaborative Research: 3-D Seismic Imaging of an Active Margin Hydrate System - Oregon Continental Margin"
SLOSEIS: Slowness Analysis, Waveform Inversion and Uncertainty Estimation in VTI Media
Parameter Estimation in Anisotropic Media
One of the top 25 presentations (out of 1100) at the SEG annual meeting, 2019: Biswas, Kumar and Sen, Density inversion from seismic data using a trans-dimensional approach. - Society of Exploration Geophysicists (SEG) (2019)
One of the top 25 presentations (out of 1100) at the SEG annual meeting, 2019: Zhao and Sen, A gradient guided MCMC method for full waveform inversion. - Society of Exploration Geophysicists (SEG) (2019)
Virgil Kauffman Gold medal or making significant advances in the sciences of Exploration Geophysics in the past five years. - Society of Exploration Geophysicists (SEG) (2018)
Distinguished Graduate Alumnus Award - Department of Geology and Geophysics, University of Hawaii at Manoa. (2016)
UTIG directorÂ’s circle of excellence recognition - University of Texas at Austin Institute for Geophysics (2016)
Distinguished Researcher Award - University of Texas at Austin Institute for Geophysics (2016)
Honorary membership for extraordinary contributions as a geophysicist, educator and author - Society of Exploration Geophysicists (SEG) (2015)
UTIG directorÂ’s circle of excellence - University of Texas at Austin Institute for Geophysics (2015)
Distinguished Educator Award - ackson School of Geosciences, University of Texas at Austin (2015)
Distinguished Alumnus award - Indian Institute of Technology(IIT), Dhanbad (2014)
UTIG directorÂ’s circle of excellence recognition - University of Texas at Austin Institute for Geophysics (2014)
Fellow, Geological society of India, 2013 - Geological society of India (2013)
Recipient of Dr. Hari Narayan award of the Geological society of India, 2013 - Geological society of India (2013)
Recipient of SPG, India honorary membership, 2012. - The Society of Petroleum Geophysicists, India (SPG) (2012)
Fellow, A. P. Akademi of sciences, 2012 - AP Akademi of Sciences, Hyderabad (2012)
Recipient of decennial gold medal of the Indian Geophysical Union (IGU), 2012 - Indian Geophysical Union (IGU) (2012)
UTIG Directors Circle of Excellence - Jackson School of Geosciences, UT-Austin (2010)
John A. and Katherine G. Jackson Chair in Applied Seismology - Jackson School of Geosciences, UT-Austin (2007)
Joseph C. Walter Jr. Award for Research Excellence - Jackson School of Geosciences, UT-Austin (2007)
Outstanding Student Paper Award - AGU Fall meeting, San Francisco (2004)
Best Paper Award (presented by a student) - SEG2004 in Denver (2004)
Best Paper Award (best paper on AVO inversion) - SEG/EAEG Summer Research Workshop (1992)
Recipient - SEG Scholarship (1986 - 1987)
Recipient of J. Watumul Foundation Award for the most outstanding student in Geology and Geophysics - University of Hawaii (1986)
Recipient - SEG Scholarship (1985 - 1986)
Recipient - SEG Scholarship (1984 - 1985)
Recipient of ISM silver medal for ranking first in first class in BSc and MSc - Indian School of Mines
Member, National Science and Engineering Research Council (NSERC) Canada , collaborative research grant site review committee, March 2014, collaborative research grant site review committee, National Science and Engineering Research Council (NSERC) Canada (2014)
Member, Editorial Board, Geohorizons (2011 - Present)
Member, Technical Program Committee (key contact - seismic inversion), Society of Exploration GeophysicistsÂ’ annual meeting, San Antonio, Texas, 2011 (2011)
Member, 2011 NSF Graduate Research Fellowship Program (GRFP), Terrestrial Geosciences Panel, NSF (2011)
Co-chair,, Technical Program Committee, SEG representative,, Society of Petroleum GeophysicistsÂ’ annual meeting, Hyderabad, India, (2010)
Guest Editor, Geohorizons Decmeber 2009, publication of the Society of petroleum geophysicists, India (2009)
Member, Technical Program Committee (key contact - seismic inversion),, Society of Exploration GeophysicistsÂ’ annual meeting, Houston, Texas, 2009 (2009)
Co-convenor, Workshop on ‘Seismic Interferometry’, SEG annual meeting, Houston, Texas, Oct. 09., Society of Exploration Geophysicists (2009)
Co-convenor,, Workshop on ‘Bayesian method for geological model building’, EAGE meeting, Amsterdam, The Netherlands, July 09., European Association of Geophysicists and Engineers (2009)
Member, Editorial Board, International Journal of Geophysics (2008 - 2011)
Co-chair,, Technical Program Committee, SEG representative,, Society of Petroleum GeophysicistsÂ’ annual meeting, Hyderabad, India, 2008. (2008)
Associate Editor, Seismic Migration section, Geophysics (2006 - Present)
Associate Editor, Seismic Modeling and Wave Propagation section,, Geophysics (2006 - Present)
Member, Editorial Board (Advisory Committee), Journal of Indian School of Mines (2006 - Present)
Associate Editor, Journal of Seismic Exploration (2005 - Present)
Co-chair, Technical Program Committee, SEG representative, Society of Petroleum Geophysicists' annual meeting, Hyderabad India (2004)
Visiting Professor, Section Applied Geophysics, Delft University of Technology, The Netherlands (2001)
Member, Technical Program Committee, Society of Exploration Geophysicists' annual meeting, San Antonio, Texas (2001)
Invited Panel Member, Global inversion of Geophysical Data, DOE workshop, San Jose, California (1999)
Invited Participant (unclassified), "Detection of Underground Facilities", DARPA Geophysics seminar (1999)
Member, External Review Board , Marine Geosciences Division Basic and Applied Research programs, Office of Naval Research (1999)
Invited Participant, How uncertainty is related to ocean science models?", National Research Council (NRC) planning workshop, Washington D.C. (1999)
Consultant, Upstream Strategic Research Group, MOBIL Oil Company, Dallas, TX (1998)
Consultant, Rock Physics / Seismic Attributes Group, AMOCO Research Center, Tulsa, OK (1998)
Associate Editor, Computational Seismology and Geodynamics, American Geophysical Union (1997 - Present)
Invited Participant, 2 week workshop on "Inverse Problems at the Institute of Mathematics and Its applications.", University of Minnesota (1995)
Visiting Scientist, NRL-SSC, Bay St. Louis, MS (1993)
Research Seismologist, Hawaii Institute of Geophysics (1987)
Geophysical Intern, SOHIO Petroleum Company, Dallas, TX (1985)
Teaching , Inverse Theory, to be entered
Teaching, Advanced Theoretical Seismology, to be entered
Teaching, Solid Earth Geophysics, to be entered
Teaching, Linear systems and inverse methods, to be entered
Teaching, Seminar courses on seismic migration and inversion, to be entered
Teaching, Asymptotic methods in seismic wave propagation, to be entered
Member, European Academy of Sciences
Member, American Geophysical Union
Member, European Association of Geoscientists and Engineers
Member, Society of Exploration Geophysicists
Member, Society of Industrial and Applied Mathematics
Member, International Committee, Society of Exploration Geophysicists
Member, Computer Application Committee, Society of Exploration Geophysicists
Ph.D. Advisor, L.N. Frazier, University of Hawaii
Member, Research Committee, Society of Exploration Geophysicists
Postdocs
Abdo Elmeliegy
Abdo graduated from North Carolina State University (NCSU) with a Ph.D. in Civil Engineering with concentration on inverse problems and their applications in seismic and biomedical imaging. In addition to his Ph.D., he earned two Master's degrees, one in Applied Mathematics from NCSU, and the other in Structural Engineering from Cairo University. He joined UTIG in September 2023 where works...
Piyoosh Jaysaval, 2016 - 2019
Maheswar Ojha, 2015 - 2015, National Geophysical Research Institute
Rui Zhang, 2011 - 2012
Ranjana Ghosh, 2010 - 2012
Deng Zhiwen, 2010 - 2011
Puneet Saraswat, 2010 - 2010
Jonas DeBasabe, 2009 - 2011
Ma Jitao, 2009 - 2010
T. Vikranth Babu, 2009 - 2009
Yang Liu, 2008 - 2009
Adrian Ciuciavara, 2008 - 2009
Ravi Srivastava, 2008 - 2009
Utpal Dutta, 2007 - 2010
Armando Sena, 2007 - 2009
Nimiisha Vedanti, 2007 - 2008
Jin Long, 2006 - 2008
A. Pal, 2006 - 2008
Abhijit Gangopadhyay, 2006 - 2007
S. Rajput, 2006 - 2007
Joost van der Noot, 2006 - 2006
S. Rajput, 2006 - 2006
Utpal Duta, 2005 - 2005
Murthi Guddati, 2004 - 2004
Wulfgang Bangerth, 2003 - 2005
Zhan Wu, 2003 - 2004
Y. Xia, 2002 - 2003
Qiaozhen Mu, 2002 - 2003
Ranjit Shaw, 2002 - 2003
Lopamundra Roy, 2002 - 2003
Robert Nowack, 2001 - 2001
Milton Porsani, 2001 - 2001
Indrajit Roy, 2000 - 2003
J. Pestana, 1998 - 1999
Roustam Seif, 1998 - 2004
Farup Akbar, 1997 - 1998
Jay Pulliam, 1995 - 1997
R. Phillip Bording, 1995 - 1997
Graduate Students
Sohini Dasgupta
, Ph.D., expected 2026
(Supervisor)
I am a Ph.D. candidate focused on computational geophysics and machine learning, where I develop physics-driven carbon monitoring methods and surrogate models for carbon sequestration and storage. My interests include scientific computing, numerical algorithms, and rock physics, and I actively apply machine learning to tackle large-scale joint inversion problems. I am also keen on statistical analysis (multi-modal) for reservoir characterization,...
Shuhua Hu
, Ph.D., expected 2025
(Supervisor)
I am a PhD Candidate in computational geophysics, interested in using numerical methods, scientific computing and machine learning to solve large-scale geophysical inverse problems. My previous experience includes land seismic data processing, seismic imaging R&D for anisotropic media.
Arnab Dhara (Supervisor)
Cameron M deFabry (Supervisor)
Shuai Yan, Ph.D., 2023
(Committee Member)
Jackson School of Geosciences
RIcardo de Bragança, Ph.D., 2022
(Supervisor)
Jackson School of Geosciences
Son Phan, Ph.D., 2021
(Supervisor)
Jackson School of Geosciences
Reetam Biswas, Ph.D., 2019 (Supervisor)
Janaki Vamaraju, Ph.D., 2019
(Supervisor)
University of Texas at Austin
Debanjan Datta, Ph.D., 2017 (Supervisor)
Qi Ren, Ph.D., 2016 (Co-supervisor)
Zeyu Zhao, Ph.D., 2015
(Supervisor)
Jackson School of Geosciences
Vladamir Bashkardin, Ph.D., 2014 (Committee Member)
Lauren Becker, M.S., 2014 (Committee Member)
Russell Carter, Ph.D., 2014 (Committee Member)
Erick Leuro, Ph.D., 2014 (Committee Member)
Biswajit Mandal, Ph.D., 2014
(Supervisor)
National Geophysical Research Institute/Osmania University
Kumar Sundaram Das, M.S., 2013
(Supervisor)
Jackson School of Geosciences
Yang Xue, Ph.D., 2013 (Supervisor)
Mohammed Alhussain, Ph.D., 2013
(Supervisor)
Jackson School of Geosciences
Yang Xue, Ph.D., 2013
(Supervisor)
UT-DGS
Kumar Das, M.S., 2013
(Supervisor)
UT-DGS
Terence Campbell, Ph.D., 2013
(Committee Member)
UT-DGS
Sharif Morshed, M.S., 2013
(Committee Member)
UT-DGS
Sandy Suhardja, Ph.D., 2013
(Committee Member)
UT-DGS
Isaac Smith, Ph.D., 2013
(Committee Member)
UT-DGS
Yu Xia, M.S., 2013
(Committee Member)
UT-DGS
Masoumeh Kordi, Ph.D., 2013
(Committee Member)
UT-DGS
Yang Wang, M.S., 2013
(Committee Member)
UT-DGS
Yi Tao, Ph.D., 2012
(Supervisor)
Jackson School of Geosciences
Alexander Lamb, M.S., 2012
(Committee Member)
UT-DGS
Kwon Taek Oh, M.S., 2012
(Committee Member)
UT-DGS
Corey Joy, M.S., 2011
(Supervisor)
Effective medium modeling of carbon sequestered reservoirs
Son Phan, M.S., 2011
(Supervisor)
Uncertainty in reservoir parameter estimation
William Burnett, Ph.D., 2011
(Committee Member)
UT-DGS
Alireza Shahin, Ph.D., 2011
(Committee Member)
UT-DGS
Ankesh Anupam, M.S., 2010
(Committee Member)
UT-DGS
Bryce Wagner, Ph.D., 2010
(Committee Member)
UT-DGS
Fang Ye, M.S., 2010
(Committee Member)
UT-DGS
Na Shan, M.S., 2010
(Committee Member)
UT-DGS
Ma Jitao, Ph.D., 2009
(Supervisor)
China University of Petroleum
Multiple attenuation in plane wave domain
Jonas De Basabe, Ph.D., 2009
(Supervisor)
University of Texas at Austin, Computational and Applied Mathematics
Numerical Simulation of Elastic Wave Propagation
Samik Sil, Ph.D., 2009
(Supervisor)
Two-way travel time analysis for seismic reservoir characterization
Tao Liu, Ph.D., 2009
(Supervisor)
Beijing University, Department of Geophysics
Hybrid finite difference-finite element of seismic wave propagation
Adam Allan, B.S., 2009
(Co-supervisor)
DGS-UT
Chunlei Chu, Ph.D., 2009
(Committee Member)
UT-DGS
Enrique Rosero Ramirez, Ph.D., 2009
(Committee Member)
UT-DGS
Daniel Smith, M.S., 2008
(Supervisor)
Seismic Trace Regularization and Datuming
Abdul Aziz Al-Aslani, M.S., 2008
(Supervisor)
Post-stack inversion for porosity estimation of carbonate reservoirs
Tiancong Hong, Ph.D., 2008
(Supervisor)
MCMC Algorithm, Integrated 4D Seismic Reservoir Characterization and Uncertainty Analysis in a Bayesian Framework
Chaoshun Hu, Ph.D., 2008
(Committee Member)
UT-DGS
Sasha Carter, Ph.D., 2008
(Committee Member)
UT-DGS
Ali Aljadher, M.S., 2008
(Committee Member)
UT-DGS
Theresa Marie Diehl, Ph.D., 2008
(Committee Member)
UT-DGS
Komars Eskandaridalvand, Ph.D., 2008
(Committee Member)
UT Dept of Petroleum and Geosystems Engineering
Sanjay Sood, M.S., 2007
(Supervisor)
Estimation of Q from seismic refractions data
Reeshidev Bansal, Ph.D., 2007
(Supervisor)
Seismic Characterization of Naturally Fractured Rerservoirs
Gregory Young, M.S., 2007
(Supervisor)
Effective Porosity Estimation from 3D Seismic: Marco Polo Field
Irina Filina, Ph.D., 2007
(Committee Member)
UT-DGS
Edgar Pinxon, M.S., 2007
(Committee Member)
UT-DGS & Bureau of Economic Geology
Hao Xun, 2007
(Committee Member)
UT-DGS
Audrey Neau, Ph.D., 2007
(Committee Member)
L'Universite de Pau
Samrajit Chakraborty, M.S., 2007
(Committee Member)
UT-DGS
Chandan Kumar, Ph.D., 2006
(Co-supervisor)
UT-DGS
Jason Gumble, Ph.D., 2006
(Committee Member)
UT-DGS
Mark Buursink, Ph.D., 2006
(Committee Member)
Boise State University
Dhananjay Kumar, Ph.D., 2005
(Supervisor)
Analysis of multicomponent seismic data from the Hydrate Ridge, offshore Oregon
Joost Van der Noot, M.S., 2005
(Co-supervisor)
Delft University of Technology
Teresa Gomez, M.S., 2005
(Committee Member)
UT-DGS
Armando Sena, Ph.D., 2004
(Co-supervisor)
UT-DGS
Jason Stine, M.S., 2004
(Committee Member)
UT-DGS
Paul Zwartjes, Ph.D., 2004
(Committee Member)
Delft University of Technology
Heidi Poot, Ph.D., 2003
(Co-supervisor)
Delft University of Technology
Chengshu Wang, Ph.D., 2003
(Co-supervisor)
UT-DGS
Gijs Meek, M.S., 2003
(Co-supervisor)
Delft University of Technology
Imtiaz Ahmed, Ph.D., 2003
(Committee Member)
UT-DGS
Matthew Morris, M.S., 2003
(Committee Member)
UT-DGS
Omar Londono, Ph.D., 2003
(Committee Member)
UT-Dept of Petroleum Engineering
Anubrati Mukherjee, Ph.D., 2002
(Co-supervisor)
UT-DGS
Abdul-Aziz Saleh Alaslani, Ph.D., 2001
(Co-supervisor)
UT-DGS
Saleh Mohammad Al-Saleh, M.S., 2001
(Co-supervisor)
UT-DGS
Junru Jiao, Ph.D., 2001
(Committee Member)
UT-DGS
Jean-Paul Van Gestel, Ph.D., 2000
(Committee Member)
UT-DGS
Faqi Liu, Ph.D., 1999
(Co-supervisor)
UT-DGS
Viramaditya Sen, Ph.D., 1998
(Committee Member)
UT-DGS
Mahesh Rajagopalan, M.S., 1998
(Committee Member)
UT-Dept of Electrical & Computer Engineering
Mehmet Tanis, Ph.D., 1998
(Committee Member)
UT-DGS
Ganyuan Xia, Ph.D., 1997
(Co-supervisor)
UT-DGS
Carlos Calderon-Macias, Ph.D., 1997
(Co-supervisor)
UT-DGS
Faruq Akbar, Ph.D., 1997
(Co-supervisor)
UT-DGS
Eddy Luhurbudi, M.A., 1997
(Co-supervisor)
UT-DGS
Fernando Campozana, Ph.D., 1997
(Committee Member)
UT-Dept of Petroleum Engineering
Raghu Chunduru, Ph.D., 1996
(Co-supervisor)
UT-DGS
Setiyono Kriyanti, M.S., 1996
(Co-supervisor)
UT-DGS
Duk Kee Lee, Ph.D., 1996
(Committee Member)
UT-DGS
Michael Jervis, Ph.D., 1993
(Committee Member)
UT-DGS
Warren Wood, Ph.D., 1993
(Committee Member)
UT-DGS
Mehmet Tanis, Ph.D., 1989
(Co-supervisor)
UT-DGS
Jiao Xue
(Co-supervisor)
Visiting PhD Student from the Institute of Geophysics, China University of Geosciences. Ent. Fall ‘11, Visiting Scholar. Anisotropy parameter estimation and inversion for reservoir characterization
Travis Richards (Supervisor)
Robert Brown (Supervisor)
Manasij Santra (Supervisor)
“Critical aspects of numerical simulation of seismic wave propagation”, International Conference on theoretical and computational acoustics, Texas A&M University, College Station, March 2014. (2014)
“Seismic fracture characterization”, PEMEX oil company,, Viallehermosa, Mexico, February, 2014. (2014)
“Subsurface Imaging: Challenges and Opporunties”, INSPIRE Lecture, University of Tirupati, January, 2014., (2014)
“Bayesian Geophysical Inversion: imposing constraints and uncertainty quantification”, keynote lecture, international conference statistics 2013,, C. R. Rao institute of advanced mathematica, computer science and statistics,, University of Hyderabad, December 2013. (2013)
"Seismic inversion and Uncertainty Quantification for reservoir characterization", Cairn Energy, Gurgaon, India, December 9, 2011. (2011)
"Challenges in computational seismology: 4th paradigm of subsurface imaging", National Geophysical Research Institute Golden Jubilee, Hyderabad, India, October 12, 2011. (2011)
"Some practical aspects of numerical simulation of seismic wave propagation", Exxon-Mobil Research Center, Houston, TX, August 2011. (2011)
"Some practical aspects of numerical simulation of seismic wave propagation", BP Research Center, Houston, TX, August 2011. (2011)
"Meta-heuristics for uncertainty characterization in geophysical inversion", key-note speech in the session on soft-computing applications in geophysics,, AOGS 2011 conference, Taipei, Taiwan, August 2011. (2011)
"Computational methods for forward and inverse problems of seismology", Indian School of Mines, Dhanbad, India, August 2011. (2011)
"Seismic methods for subsurface characterization", Central institute of mining and fuel research, Dhanbad, India, August 2011. (2011)
“Computational methods for forward and inverse problems of seismology”, Indian Institute of Science Education and Research, Kolkata, India, August 2011 (2011)
“Seismic Inversion: computational challenges”, National Geophysical Research Institute, India, July (2011)
“Critical issues related to numerical simulation of wave propagation”, SEG summer research workshop, Quebec City, Canada, June (2011)
“On some practical aspects of numerical simulation of seismic wave propagation”, KAUST-IAMCS workshop on Multi-scale modeling, Advanced discretization techniques, and simulation of wave propagation, King Abdullah University of Science and Technology, May (2011)
“Full waveform inversion for reservoir characterization”, BGP Chinese National Oil Company, Beijing, China, March (2011)
“Wave propagation in fractured porous media”, China University of Petroleum, Beijing, China, March (2011)
“Use of priors and hyper-priors in seismic inversion”, workshop on seismic exploration: current status and future directions, King Abdullah University of Science and Technology, Jan (2010)
“Inverse methods, geostatistics and neural networks for seismic reservoir characterization”, SPG Dehradun, India, Dec (2010)
“Seismic inversion for reservoir characterization: some critical issues”, Department of Geophysics, Stanford University, California, May (2010)
“Use of prior and hyper-prior in seismic inversion for reservoir characterization”, Key-note speech, SPG Conference, Hyderabad, India, February (2010)
"Role of scientific societies in promoting science and technology", Key-note speech, SPG Conference, Hyderabad, India, February (2010)
"Constrained pre-stack waveform inversion", Western-Geco/Schlumberger Reservoir Services, Houston, Texas (2005)
"Free Gas and Gas Hydrate Saturation from multi-component seismic data from offshore Oregon", Rice University, Houston, Texas (2005)
"Free Gas and Gas Hydrate Saturation from multi-component seismic data from offshore Oregon", Edger Forum meeting, Austin, TX (2005)
"Seismic Inversion: State of the art", SPG Kolkata chapter, Kolkata, India (2005)
"Seismic modeling of fractured reservoirs", SIAM annual meeting, Portland, OR (2004)
"Seismic waveform inversion and characterization of gas hydrates offshore Oregon", Department of Geological Sciences, Indiana University, Bloomington, Indiana (2004)
"Seismic imaging in heterogeneous, anisotropic media", Department of Geological Sciences, Indiana University, Bloomington, Indiana (2004)
"Seismic Inversion for reservoir characterization", Department of Earth Sciences, Memorial University of Newfoundland, Newfoundland (2004)
"Analysis and interpretation of OBS and streamer data from Hydrate Ridge, offshore Oregon", EDGER forum meeting, University of Texas at Austin, Austin, Texas (2004)
"Seismic waveform inversion: Current status and future directions", Keynote address, Society of Petroleum Geophysicists (SPG) conference, Hyderabad, India (2004)
"Seismic Modeling of fractured reservoirs", Industrial Associates meeting, Institute of computational and engineering sciences, The University of Texas at Austin, Austin, Texas (2003)
"Gas Hydrates: their resource potential and geophysical characterization", Institute for Geophysics, UNAM, Mexico City, Mexico (2003)
"Pre-stack Seismic waveform inversion: current status and future directions", Mexican Institute of Petroleum (IMP), Mexico City, Mexico (2003)
"Gas Hydrates: their resource potential and geophysical characterization", Mexican Institute of Petroleum (IMP), Mexico City, Mexico (2003)
"Synthetic Seismograms in layered fractured media", FRACCITY annual meeting, Jackson Hole, Wyoming (2003)
"Pre-stack inversion and anisotropic velocity analysis", Jason Geosystems, Rotterdam, The Netherlands (2003)
"Migration velocity estimation by non-linear optimization", Society of Industrial; and Applied Math conference on mathematical and computational issues in geoscience, (2003)
"Estimation of Vp and Vs of shallow sediments offshore Oregon: Implication towards the distribution of gas hydrates", Petrotech Conference, New Delhi (2003)
"Gas Hydrates: their resource potential and geophysical characterization", Prof. Jagdeo Singh Memorial Lecture at Indian School of Mines, Dhanbad (2003)
"Gas Hydrates: their resource potential and geophysical characterization", Society of Petroleum Geophysicists, Kolkata chapter, (2003)
Geophysical Inversion - An overview, Schlumberger Oilfield Services, Houston, Texas (2002)
Rock property estimation from reflection seismic data, Shell Oil Company, Houston, Texas (2002)
Techniques for pre-stack waveform inversion, , R&D Division, Western Geco, Houston, Texas (2002)
Waveform inversion for reservoir characterization, BP, Houston, Texas (2002)
Pre-stack inversion with adaptive regularization, Society of Petroleum Geophysicists meeting, Mumbai, India (2002)
Seismic Processing in transversely isotropic media: the tau-p approach, Section Mining Engg and Applied Geophysics, Delft University of Technology, The Netherlands (2001)
Pre-stack inversion: Current status and future directions, SBGF meeting, Bahia, Salvador (2001)
Pre-stack inversion: Isotropy and Transverse Isotropy, EDGER Forum, University of Texas at Austin, Austin, Texas (2001)
Air-borne GPR for the detection of underground facilities, International workshop on GPR, TNO, The Netherlands (2001)
Integrated reservoir characterization, Western Geophysical , Houston, Texas (2000)
Integrated reservoir characterization, BP, Houston, Texas (2000)
Inverse Problems and uncertainty estimation in Geophysics, TICAM, UT , Austin, Texas (2000)
Seismic waveform inversion: from isotropy to anisotropy, Shell Oil Company, Houston, TX (2000)
Normal moveout and Seismic waveform inversion in transversely isotropic media, Conoco, Ponca City, Oklahoma (2000)
Parameter Estimation in Anisotropic Media, Phillips Oil Company, Barttlesville, Oklahoma (2000)
Free surface multiple attenuation in reflection seismic data, ONR Broadband Signal Processing Working Group Meeting, Applied Research Laboratory, University of Texas at Austin, Austin, Texas (1999)
Seismic Waveform Inversion and Tomography: Examples of ill-posed geophysical inverse problems, PGS Seres, Houston, Texas (1999)
Processing of multi-component OBC data, PGS , Houston, Texas (1999)
Geophysical Inversion and Uncertainty Estimation, National Research Council Workshop on 'How uncertainty is treated in ocean science models?", National Academy of Sciences, Washington, D.C. (1999)
Inverse Problems, Statistics and a touch of philosophy, UTIG seminar, (1999)
Free surface multiple attenuation in the plane wave domain, Upstream Strategic Research Division, Mobil Oil Company, Dallas, Texas (1999)
Application of active source Seismology in imaging of subsurface structures, DARPA Geophysics Seminar, (1999)
Geophysical Inversion: Application to hydrocarbon exploration, DOE Workshop on Global inversion of Geophysical Data, (1999)
Geophysical Inversion : Theory and Practice, Southwest Research Institute, San Antonio, Texas (1998)
AVO and Seismic Inversion in he Plane Wave Domain, Mobil Strategic Research Center, Dallas, TX (1998)
AVO and Seismic Lithology, Oil and Natural Gas Commission, Calcutta, India (1998)
AVO and Seismic Waveform Inversion in the Plane Wave Domain: Application to Gas Hydrate Data, Society of Petroleum Geophysicists, Chennai, India (1998)
Seismic Wave Propagation Modeling: Current Status and Future Trends, Department of Mechanical Engineering, The University of Texas at Austin, Austin, Texas (1997)
Practical Approaches to Uncertainty Estimation in Geophysical Inversion, Sociedade Brasileira de Geofisica, Sao Paulo, Brazil (1997)
"To Bayes or not to Bayes", PPPG, Federal University of Bahia, Salvador, Brazil (1997)
Mapping of Elastic properties of gas hydrates, Amoco EPTG, Tulsa, OK (1997)
Global Optimization Methods and Migration Velocity Analysis, Oil and Natural Gas Commission, Calcutta, India (1996)
"To Bayes or not to Bayes", Society of Petroleum Geophysicists, Oil and Natural Gas Commission, Dehradun, Indi (1996)
Inverse methods and uncertainty estimation in geophysics, Western Atlas Wireline Service, Houston, TX (1996)
Gibbs' sampler and its application to geophysical inversion, SIAM meeting on Geophysical Inverse Problems in Geophysics, Fish Camp, CA (1995)
Optimization methods for automatic velocity estimation, SIAM meeting on Geophysical Inverse Problems in Geophysics, Fish Camp, CA (1995)
Nonlinear geophysical inversion, Department of Petroleum and Geosystems Engineering, University of Texas at Austin, Austin, TX (1995)
Nonlinear geophysical inversion, Indian Institute of Technology, Kharagpur, India (1994)
Global optimization methods in geophysical inversion and Seismic migration and modeling in 3-D, National Geophysical Research Institute, Hyderbad, India (1994)
Nonlinear geophysical inversion, Indian School of Mines, Dhanbad India (1994)
Nonlinear optimization methods in geophysics, Delft University of Technology, The Netherlands (1994)
Nonlinear optimization methods in geophysics, University of Potsdam, GeoForschungs Zentrum, Potsdam, Germany (1994)
Global optimization methods in geophysical inversion, University of Utrecht, The Netherlands (1994)
Bayesian inference, Gibbs' sampler and uncertainty estimation in nonlinear geophysical inversions, Department of Computational and Applied Mathematics, Rice University, Houston, Texas (1993)
Geophysical inversion using global optimization, Society of Industrial and Applied Mathematics Conference on Mathematical and Computational Issues in the Geosciences, Houston, Texas (1993)
High resolution shallow water 3-D survey and inversion for geophysical parameters, Acoustical Society of America, Ottawa, Canada (1993)
Nonlinear inversion of geophysical data, Department of Geophysics, Center for Tectonophysics, Texas A&M University, (1992)
Genetic Algorithms, Naval Research Laboratory, Stennis Space Center, MS (1992)
Modeling of wave propagation Los Angeles Basin, CICESE, Mexico (1990)
Multifold path integral synthetic seismograms, Seismological Laboratory, California Institute of Technology, Pasadena, CA (1987)
Kirchhoff-Helmholtz reflection seismograms, SOHIO Petroleum Company, Dallas, TX (1985)
| Year | Semester | Course | |
|---|---|---|---|
| 2023 | Fall | GEO 398D | 1-Intro Machn Learning/Geosci |
| 2023 | Fall | GEO 371T | Intro To Machine Learning |
| 2023 | Spring | GEO 384M | Inverse Theory |
| 2022 | Fall | GEO 371T | Intro To Machine Learning |
| 2022 | Fall | GEO 391 | Intro To Machine Learning |
| 2021 | Fall | GEO 371T | Intro To Machine Learning |
| 2021 | Fall | GEO 391 | Intro To Machine Learning |
| 2021 | Spring | GEO 384M | Inverse Theory-Wb |
| 2020 | Fall | GEO 371T | Machine Learning |
| 2020 | Fall | GEO 391 | Machine Learning |
| 2020 | Spring | GEO 384M | Inverse Theory |
| 2020 | Spring | GEO 390D | Seismology III |
| 2018 | Spring | GEO 384M | Inverse Theory |
| 2018 | Spring | GEO 384W | Seismic Imaging |
| 2018 | Spring | GEO 394 | Rsch In Geological Sciences |
| 2017 | Fall | GEO 394 | Rsch In Geological Sciences |
| 2017 | Spring | GEO 384M | Inverse Theory |
| 2017 | Spring | GEO 390D | Seismology III |
| 2017 | Spring | GEO 394 | Rsch In Geological Sciences |
| 2016 | Fall | GEO 394 | Rsch In Geological Sciences |
| 2016 | Spring | GEO 384M | Inverse Theory |
| 2016 | Spring | GEO 394 | Rsch In Seismic Wave Propagatn |
| 2015 | Fall | GEO 394 | Rsch In Geological Sciences |
| 2015 | Fall | GEO 384W | Seismic Imaging |
| 2015 | Spring | GEO 394 | Rsch In Seismic Wave Propagatn |
| 2014 | Fall | GEO 394 | Rsch In Seismic Wave Propagatn |
| 2014 | Fall | GEO 384M | Inverse Theory |
| 2014 | Fall | GEO 390D | Seismology III |
| 2014 | Spring | GEO 394 | Rsch In Seismic Wave Propagatn |