JEFFREY SHRAGGE - RESEARCH PAGE


















CONTACT
 

Associate Professor Jeffrey Shragge

Currently at:
Center for Wave Phenomena
Geophysics Department
Colorado School of Mines
924 16th Street, Room 260K
Golden, CO 80401-1877, USA
Email: jshragge [AT] mines.edu

Formerly:
School of Earth Sciences and School of Physics and Astrophysics
University of Western Australia
M004, 35 Stirling Highway
Crawley, WA 6009, Australia
Tel: +61 (0)8 6488 3474  
Email: jeffrey.shragge [AT] uwa.edu.au



TEACHING

Courses (Co-teaching):

 COURSE  DESCRIPTION  UNIVERSITY 
 GPGN404 Digital Signal Processing (2017-F) CSM
 GEOS5503  Petroleum Resources (2015-W)  UWA
 GEOP4002  Geophysics Field Camp (2016-S)  UWA
 SHPC4001  Principles of Scientific Computation (2016-S)  UWA
 SHPC5001  High-Performance Scientific Computing (2016-W)  UWA

For prospective students

There are a number of opportunities motivated students to find projects at the undergraduate, MSc or PhD level.  Anyone interested can inquire by email on available positions and technical topics that are currently being investigated.  


PEOPLE


Postdoctoral Collaborators

 R/A Prof. Rie Kamei
 Dr. Taka Miyoshi



Hons / Graduate Students

 NAME DEGREE   SUPERVISOR YEAR 
 Aaron Girard PhD Geophysics (UWA) Lead 2014-present
 Toby Colson PhD Geology (UWA) Co 2015-present
 Rosine Riera  PhD Geology (UWA) Co 2015-present
 Lee Tasker PhD Civil Engineering (UWA) Co 2014-present
 Rafael de Souza  PhD Geophysics (UWA)  Co 2013-17 (submitted)
 Tom Hoskin  PhD Geophysics (UWA)  Co 2012-17 (submitted)
 James Deeks PhD Geophysics  (UWA)  Co2011-present

 

Past Students & Collaborating Researchers

 NAME    DEGREE  PRESENT LOCATION
 PHD STUDENTS

 Dr. Ben WittenGeophysics 2017 (UWA) UWA 
Dr. Lisa Gavin Geophysics 2015 (UWA)Woodside Petroleum  
 Dr. Matthew Saul Geophysics 2014 (UWA)  Chevron 
   
MSC STUDENTS 

Cameron Powell  Comp. Physics 2016 (UWA)  TBD!
 Ben Tapley Comp. Physics 2016 (UWA)  NTNU 
 Huan Dong Geoscience 2015 (UWA) --- 
 Tunde AdekoyaGeoscience 2014 (UWA) Wireline Services Group 
 Steven OkekeGeoscience 2014 (UWA)--- 
   
 HONORS/SENIORS

 Jefferson Bustamante  Geophysics 2016 (UWA)  University of Edinburgh
 Dara Mullins  Geophysics 2016 (UWA)  Woodside Petroleum
 Simon Shook  Physics 2015 (UWA)  Woodside Petroleum
 Matt James  CSSE 2012 (UWA)  Oracle
   
 RESEARCHERS

Dr. Toby Potter Geophysics Postdoc (UWA)  Pelagos Consulting  
Robin Weiss GPU Ninja 2012 (UWA)  Belvedere Trading, LLC 
Dr. Tatiana Rodriguez  Research Associate (UWA) Alces Technology 
 Dr. UGeun Jang Postdoc (UWA) Polar Research Institute 

        
BRIEF VITAE

Education

 YEAR  DEGREE  UNIVERSITY
 2009  PhD Geophysics  Stanford University
 2001  MSc Geophysics  University of British Columbia
 1998 BScH Physics   Queen's University

Employment

 YEAR  POSITION  INSTITUTE/COMPANY
 2017-presAssociate Professor Colorado School of Mines 
 2013-17  Associate Professor  University of Western Australia
 2012-13  Research Associate Professor  University of Western Australia
 2009-12 Research Assistant Professor   University of Western Australia
 2002-09  Research Assistant  Stanford University
 2001-02  Project Geophysicist Hager Geoscience, MA, USA 
1998-2001  Research Assistant   University of British Columbia

Honours and Awards

 YEAR  AWARD
2014   Vice-Chancellor's Award for Early-Career Research, UWA
2013  Best Student Paper (Matt Saul, co-advisee), SEG Annual Meeting 
2012   Best Paper (Seismology) Award, ASEG Meeting (with D. Lumley)
2010  J. Clarence Karcher Award, Society of Exploration Geophysicists, SEG 

Professional Society Affiliations

Society of Exploration Geophysicists (SEG)
Australian Society of Exploration Geophysicists (ASEG)
European Association of Geoscientists and Engineers (EAGE)
American Geophysical Union (AGU)


Journal Editing and Grant Reviewing

Geophysics (Assistant Editor)
Geophysical Journal International
Geophysical Prospecting
Journal of Geophysical Research
Canadian Journal of Exploration Geophysics
Bulletin Seismological Society of America
SIAM Journal on Imaging Sciences
IEEE Transactions on Geoscience and Remote Sensing
IEEE Transactions on Signal Processing
US National Science Foundation
Australia Research Council
National Science and Engineering Research Council of Canada

RESEARCH OVERVIEW

Basic research
3D acoustic and elastic wave propagation, 3D/4D velocity inversion, 
3D/4D Reverse-time migration (RTM), wave-equation migration,
rock physics, computational geometry and differential meshing

Applied research
Near-surface geophysics: Ground penetrating radar, magnetics, conductivity profiling, resistivity, seismic reflection/refraction 

Computing
                 General Purpose GPU computing, CUDA
                     Parallel Programming (OpenMP, MPI)

          Collaborating Organisations
                    Society of Exploration Geophysicists
                    Australian Society of Exploration Geophysicists
                    Australian Research Council
                    Geoscientists without Borders  


SELECTED PUBLICATIONS

Recent Publications (2013-17)

Witten, B., and J. Shragge, 2017, Microseismic Image-domain Velocity Inversion: Marcellus Shale Case Study: Geophysics, 82, no. 6, KS99-KS112.

Witten, B., and J. Shragge, 2017, Image-domain Velocity Inversion and Event Location for  Microseismic Monitoring: Geophysics, 82, no. 5, KS71-KS83.

Shragge, J. and B. Tapley, 2017, Solving the Tensorial 3D Acoustic Wave Equation: A Mimetic Finite-Difference Time-Domain Approach: Geophysics, 82, no. 4, T183-T196.

Shragge, J., D. Lumley, N. Issa, T. Hoskin, A. Paterson and J. Green, 2017, Surveying Batavia’Graveyard: Geophysical controlled experiments and subsurface imaging of archaeological Sites on an Indian Ocean coral island: Geophysics, 82, no. 4, B147-B163.

Johnson, J., J. Shragge and K. van Wijk, 2017, Non-confocal all-optical laser-ultrasound and photoacoustic imaging system for angle-dependent deep tissue imaging: Journal of Biomedical Optics, 22, 4, 041014.

Souza, R., D. Lumley and J. Shragge, 2017, Estimation of reservoir fluid saturation from 4D seismic data: Effects of noise on seismic amplitude and impedance attributes: Journal of Geophysical Engineering, 14, 51-68.


Shragge, J., T.E. Blum, K. van Wijk and L. Adam, 2015, Full Wavefield Modeling and Reverse-time Migration of Laser Ultrasound Data: A Feasibility Study: Geophysics, 80, no. 6, D553-D563.

Witten, B., and J. Shragge, 2015, Extended Wave-equation Imaging Conditions for Passive Seismic Data: Geophysics, 80, no. 6, WC61-WC72.

Shragge, J., 2014, Solving the 3D Acoustic Wave-equation on Generalized Structured Meshes: A FDTD Approach: Geophysics, 79, no. 6, T363-T378.

Spratt, J., M.C. Dentith, S. Evans, A.R.A. Aitken, M. Lindsay, J.A. Hollis, I.M. Tyler, A. Joly, and J. Shragge, 2014, A Magnetotelluric Survey Across the Kimberley Craton, Northern Western Australia, WA Department of Mines and Petroleum, Report 136.

Shragge, J., 2014, Reverse-time migration from topography: Geophysics, 79, no. 4, P1-P12.

Yang, T., J. Shragge and P. Sava, 2013, Illumination compensation for image-domain wavefield tomography: Geophysics, 78, no. 5, U65-U76.

Saul, M., D. Lumley and J. Shragge, 2013, Modeling the pressure sensitivity of uncemented sediments using a modified effective medium theory: Incorporating grain relaxation and porosity effects: Geophysics, 78, no. 5, D327-D338.

Shragge, J., T. Yang and P. Sava, 2013, Time-domain image-domain tomography using adjoint-state methods: Geophysics, 78, no. 4, A29-A33.

Shragge, J. and D. Lumley, 2013, Time-lapse wave-equation migration velocity analysis: Geophysics, 78, no. 2, S69-S79.

Weiss, R. and J. Shragge, 2013, Solving the 3D anisotropic elastic wave equation on Parallel GPU Devices: Geophysics,78, no. 2, F7-F15.

Shragge, J., 2013, Elliptical Moveout Operator for Data Regularization in Azimuthally Anisotropic Media: Geophysics, 78, no. 1, C1-C10.


Manuscripts Submitted or in Preparation

Johnson, J., M. Merrilees, J. Shragge and K. van Wijk, 2017, All-Optical Laser-Ultrasound and Photoacoustic Imaging of Calcified Atherosclerotic Plaque: Submitted to Photoacoustics.

de Souza, R., D. Lumley, J. Shragge, A. Davolio, and D. Schiozer, 2017, Analysis of Time-Lapse Seismic and Production Data for Systematic Reservoir Model Classification and Assessment: Submitted to Journal of Geophysical Engineering.

Potter, T., J. Shragge and D. Lumley, 2017, Performance and Stability of the Double Absorbing Boundary method: Submitted to Journal of Computational Physics.

Bustamante, J., J. Shragge and D. Lumley, 2017, A Comparison of Rock Physics Models for Stress-related Azimuthal Anisotropy in Seismic Data: submitted to Exploration Geophysics.

Hoskin, T., M. Dentith, J. Shragge, A. Jones, K. Regenauer-Lieb and P.E. Malin, 2017, Implications of a Constrained Magnetotellurics Traverse on the Deep Structure of the North Perth Basin, Western Australia: to be submitted to Tectonics.

Girard, A. and, J. Shragge, 2017, Automated Processing Strategies for Ambient Seismic Data: to be submitted to Geophysics.


Recent Conference Abstracts (2013-17)



Witten, B., and J. Shragge, 2016, Full-wavefield tomography for seismic monitoring: 89th Annual International Meeting, SEG, Expanded Abstracts, 35, 2513-2517.

Adekoya, T., G. McGrath, M. Leopold, J. Shragge, A. Challis, J. Stevens, and B. Miller, 2015, Time-lapse Geophysical Monitoring of the Subsurface Hydrology at Kings Park, Western Australia: European Geophysical Union, GEU2015-8396-1.

Adam, L., J. MacFarlane, K. van Wijk, J. Shragge and K. Higgs, 2015, Monitoring the effects of CO2 injection on carbonate-cemented sandstones with elastic waves: 88th Annual International Meeting, SEG, Expanded Abstracts, 34.

Witten, B., and J. Shragge, 2015, Passive extended imaging conditions for microseismic velocity QC, 88th Annual International Meeting, SEG, Expanded Abstracts, 34.

Adam L., J. MacFarlane, K. van Wijk, J. Shragge and K. Higgs, 2015, Monitoring how Carbonate Cement Dissolution Affects Dissolution Properties due to CO2 Injection: 3rd International Workshop on Rock Physics.



Witten, B. and J. Shragge, 2014, Elastic velocity updating through Image-Domain Tomographic Inversion of Passive Seismic Data: AGU Annual General Meeting.

Spratt J., M.C. Dentith, S. Evans, A. Aitken, M. Lindsay, J.A. Hollis, I.M. Tyler, A. Joly, and J. Shragge, 2014, A magnetotelluric survey across the Kimberley Craton, northern Western Australia: 22nd EM Induction Workshop.

Weiss, R., J. Shragge, 2014, Adding GPU-Acceleration to open-source 3D Elastic Wave Modelling: GPU Technology Conference, S4599.

Nakpathom, A., J. Shragge, C. Boonyasiriwat and R. Kamei, 2014, Visco-acoustic Full Waveform Inversion for Estimation of Seismic Velocity and Quality Factor: ANSCSE18, Si Racham Thailand 25.

Saul, M., D. Lumley and J. Shragge, 2013, Modeling the Pressure Sensitivity of Uncemented Sediments Using a Modified Effective Medium Theory: Proceedings of the 75th Annual International Meeting, EAGE, Expanded Abstracts.

Shragge, J., T. Yang and P. Sava, 2013, Time-lapse velocity inversion through image-domain tomography: 23rd International Conference and Exhibition, ASEG, Expanded Abstracts.

Deeks, J., D. Lumley and J. Shragge, 2013, High-performance computational modelling of 3D seismic wavefields Offshore NW Australia: 23rd International Conference and Exhibition, ASEG, Expanded Abstracts.

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