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News & Events - 2015

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CWP office closed for Thanksgiving Day holiday

The Center for Wave Phenomena office will be closed on these dates:

CWP wishes everyone a happy Thanksgiving holiday! We will resume business as usual on Monday, 30 November.


Daniel Rocha, Jr. successfully defends his MS thesis

On November 13, 2015, Daniel Rocha, Jr. successfully defended his Master of Science thesis at the Colorado School of Mines. Daniel's thesis was titled "Wavefield imaging using the energy norm" and his thesis advisor was Prof. Paul Sava, the CWP Director. Following his defense, Daniel will continue on to his PhD research at CWP. Well done, Daniel!


Daniel Rocha, Jr.

Daniel Rocha, Jr.,


Daniel with CWP Director Prof. Paul Sava, his CWP advisor


Daniel begins his Master's thesis defense


Daniel addresses a question from his thesis committee members



Chris Graziano successfully defends his MS thesis

On October 30, 2015, Chris Graziano successfully defended his Master of Science thesis at the Colorado School of Mines. Chris' thesis was titled "Wavelets and warping PS seismic images" and his thesis advisor was Prof. Dave Hale (ret.). Congratulations, Chris!


Chris Graziano

Chris Graziano,


Chris with Prof. Dave Hale, his CWP advisor


Chris begins his Master's thesis defense



October 26 visit - Michael Wakin, Colorado School of Mines, Dept. of Electrical Engineering and Computer Science



Michael Wakin
Associate Professor, Dept. of Electrical Engineering and Computer Science,
Colorado School of Mines


Prof. Roel Snieder (left) introduces Prof. Wakin to CWP Director Paul Sava (right)

MIchael presentation

Prof. Wakin begins his presentation on compressive sensing to CWP faculty and students








Thank you for joining us: 2015 CWP Semi-Annual Meeting, October 20

Thank you to representatives of our Consortium Sponsors and guests who joined us at the 2015 CWP Semi-Annual Meeting. CWP welcomed numerous individuals from around the world who browsed our latest research on mini-posters and enjoyed refreshments. The meeting was was held during the recent 2015 SEG Annual Meeting in New Orleans. Please contact CWP if you have any additional questions regarding the mini-posters displayed during our meeting.



CWP SemiAnnualMeeting

CWP Semi-Annual Meeting attendees


CWP student Xueyi (Alex) Jia (left)


CWP undergraduate research assistant Alicia Johnson (left) and CWP alumnus Dr. Ivan Vasconcelos



CWP student Aaron Prunty


CWP student Daniel Rocha, Jr. (center)


CWP student Esteban Diaz Pantin



CWP student Hui Wang (left)


Jan Douma (Shell, at right) speaks with CWP students Vladimir LI and Qifan Liu


L-R: Gabriel Perez and CWP research associate John Stockwell



L-R: Joost van Der Neut and Kees Wapenaar (Delft University of Technology) and CWP student Satyan Singh


Kasper van Wiik (second from left) and Sven Treitel (far right)


CWP student Lucas Andrade de Almeida



CWP student Nishant Kamath

Paul address

CWP Director Prof. Paul Sava welcomes meeting attendees


L-R: Paul Williamson (Total) discusses CWP student Vladimir Li's poster (center)



L-R: CWP faculty Roel Snieder, Dr. Nori Nakata and Huyen Bui (Shell)


CWP student Satyan Singh


CWP student Sonali Pattnaik



CWP student Thomas Rapstine

Paul Jan John

L-R: CWP Director Paul Sava, Jan Douma and John Kimbro (Shell)


CWP student Tong Bai



CWP student Vladimir Li


Paul Sava, Drew Andreas and Joe Dellinger (BP America)


CWP student Yogesh Arora


Tsvankin and Hale receive 2015 SEG awards

Ilya Tsvankin and Dave Hale were honored with awards during the 2015 SEG Awards and Honors Ceremony on October 18, 2015. Well done and congratulations to both!



CWP faculty Ilya Tsvankin receives the SEG Honorary Membership Award from SEG President Chris Liner


Former CWP faculty Dave Hale was recognized for Best Paper in INTERPRETATION magazine

SEG Awardees

2015 SEG Award recipients



CWP's Vimeo channel goes offline in November

The Center for Wave Phenomena's Vimeo channel will go offline on November 1, 2015. CWP's YouTube channel will remain active and it will be the go-to place for all of CWP's research videos and presentations. Please contact Shingo Sean Ishida if you have any questions or need more information regarding this transition.


September 28 visit - John Scales, Colorado School of Mines, Dept. of Physics


John Scales

John Scales
Professor, Dept. of Physics,
Colorado School of Mines


Prof. Roel Snieder (right) introduces Prof. Scales to CWP

John presentation

Prof. Scales makes CWP ponder electromagnetic spectrums







September 24 visit - Dimitri Bevc, Chevron Energy Technology Company


Martin Karrenbach

Dimitri Bevc,
Team leader, Geophysics R&D
Chevron Energy Technology Company


L-R: CWP student Esteban Diaz Pantin and Dr. Bevc

Paul and CWP

Esteban and Dr. Bevc discuss Esteban's wavefield tomography research








Chinaemerem Kanu honored at 2015 NDT-CE poster competition

Chinaemerem Kanu CWP alumnus Chinaemerem Kanu was recently honored for a poster presentation he co-authored with Sven Grothe from the Bundesanstalt für Materialforschung und –prüfung (BAM). Kanu and Grothe's presentation, titled "Ultrasonic signal evaluation used to detect and localize temperature changes in a concrete specimen caused by a heating cartridge," was voted second best at the poster presentation competition of the 2015 International Symposium Non-Destructive Testing in Civil Engineering (NDT-CE). The 2015 NDT-CE, which took place at Technical University Berlin, provided an open space for exchange of ideas, new developments, and testing needs from researchers, manufacturers, service providers, owners of structures and those active in training, validation and standardization. Congratulations, Kanu!



September 3-4 visit - Martin Karrenbach, Optasense


Martin Karrenbach

Martin Karrenbach,
Senior manager of innovation,


L-R: Dr. Karrenbach and CWP Director Prof. Paul Sava discuss the role of computing in geophysics

Paul and CWP

Dr. Karrenbach shares his thoughts with Profs. Roel Snieder (left), Sava (front) and CWP students








John Stockwell honored as first "SEG Wiki Champion"

John Stockwell CWP Research Associate John Stockwell was featured in the 2015 SEG Wiki interview series. John was interviewed to discuss his work to launch more than 800 biographies of well-known contributors to the field of applied geophysics in the SEG Wiki and his subsequent honor as the Society's first "SEG Wiki Champion." Click here to read John's interview.




August 31 visit - Antoine Guitton, Stanford University


Antoine Guitton

Antoine Guitton,
Stanford University


L-R: Dr. Guitton and CWP Director Prof. Paul Sava

Antoine presents

Prof. Guitton begins his presentation to CWP faculty and students


Prof. Guitton discusses velocity-density ambiguity in acoustic FWI







August 27 visit - Mamoru Takanashi, JOGMEC


Mamoru Takanashi

Dr. Mamoru


L-R: Dr. Takanashi and Prof. Ilya Tsvankin


Drs. Takanashi and Tsvankin


L-R: CWP student Nishant Kamath and Dr. Takanashi








August 17 visit - Weichang Li, Saudi Aramco


Weichang Li

Weichang Li,
Senior Research Geophysicist,
Saudi Aramco


L-R: CWP student Daniel Rocha, Jr. and Dr. Li discuss wavefield tomography








August 6 visit - Paul Fowler


Paul Fowler

Dr. Paul Fowler

Paul Fowler

Dr. Fowler discusses RTM with CWP A-Team members


L-R: Prof. Ilya Tsvankin and Dr. Fowler







GEOPHYSICS Editorial Board recognizes CWP alumnus Francesco Perrone

Ilya Tsvankin Evert Slob, Editor, and the Editorial Board of GEOPHYSICS recognized CWP alumnus Francesco Perrone for his outstanding reviews of papers. Although the Society of Exploration Geophysicists usually receives submitted papers in good form, the submissions can, and often do, require additional revisions that improve content and presentation. Recognized by SEG for his detailed and insightful reviews, Francesco prompted improvements to two submitted papers with his thoughtful suggestions and comments. Francesco - whose nomination makes him a candidate for SEG's GEOPHYSICS Reviewer of the Year award - was nominated for the Editorial Board's consideration, by Associate Editor Tariq Alkhalifah, of King Abdullah University of Science and Technology. Well done, Fran!



June 26 visit - Christoph Sens-Schönfelder, German Research Center for Geosciences



Christoph Sens-Schönfelder,
Scientist, GFZ Potsdam


L-R: Prof. Roel Snieder and Dr. Sens-Schönfelder

Christoph Sens-Schönfelder from the German Research Center for Geosciences (GFZ) in Potsdam, Germany, is visiting Prof. Roel Snieder at CWP for two weeks during the summer of 2015.

During Dr. Sens-Schönfelder's visit, he will continue the research that he and Prof. Snieder started when Prof. Snieder was on a sabbatical leave at GFZ in the fall of 2014. This collaboration was a result of the research award from the Alexander von Humboldt Foundation that Prof. Snieder received.



Ilya Tsvankin and CWP Anisotropy Team begin international research project on FWI

Ilya Tsvankin Ilya Tsvankin and the Anisotropy (A-) Team have begun working on a three-year international research project titled "Full waveform inversion of seismic data for reservoir attributes." The project is funded by the King Abdullah University of Science and Technology (KAUST), Saudi Arabia, as part of the Competitive Research Grant program designed to support cutting-edge developments in all fields of science. The A-Team collaborators include Tariq Alkhalifah (project coordinator) and Ying Wu (KAUST), Jiubing Cheng (Tongji University, China), and Ehsan Naeini (Ikon Science, United Kingdom). The main goal of the project is to develop advanced anisotropic target-oriented FWI algorithms capable of estimating the physical parameters of oil and gas reservoirs from multicomponent, wide-azimuth seismic data.



Roel Snieder receives laudation from Alexander von Humboldt Foundation

Roel Snieder

L-R: Dr. Helmut Schwartz presents Prof. Snieder with his laudation.

On June 11 in Berlin, the Alexander von Humboldt Foundation presented Roel Snieder with a laudation for his internationally-recognized contributions to the fields of acoustic/seismic exploration and seismology. Snieder's work on seismic interferometry was also recognized by the von Humboldt Foundation. Prof. Snieder's award, presented by Dr. Helmut Schwartz, the von Humboldt Foundation president, also highlighted the collaboration between Prof. Snieder and Dr. Christoph Sens-Schonfelder at the German Research Center fro Geosciences (GFZ Potsdam), as well as with Dr. Ernst Niederleithinger at the Federal Institute for Materials Research and Testing (BAM) in Berlin. Congratulations, Roel!



Paul Sava is the new C.H. Green Chair of Exploration Geophysics at Mines

Paul Sava On June 1, Paul Sava was named the C.H. Green Chair of Exploration Geophysics at the Colorado School of Mines. Prof. Sava is also the current Director of CWP. He holds an Engineering degree in geophysics (1995) from the University of Bucharest, and a MS (1998) and a PhD (2004) in geophysics from Stanford University, where he was a member of the Stanford Exploration Project. His main research interests are in wavefield seismic imaging, stochastic imaging and inversion, computational methods for wave propagation, numeric optimization and high performance computing. He is a member of SEG, EAGE, and AGU, and is currently serving his second term as Education Officer on the EAGE Board.


Dave Hale retires from the Colorado School of Mines

Dave Hale CWP faculty Dave Hale retired from his position as the Charles Henry Green Professor of Exploration Science at the Colorado School of Mines in Spring 2015. Prof. Hale received his B.S. in physics from Texas A&M University and his Ph.D. in geophysics from Stanford University. He has worked as a field seismologist and research geophysicist for Western Geophysical, as a senior research geophysicist for Chevron, as an associate professor at the Colorado School of Mines, as a chief geophysicist and software developer for Advance Geophysical, and as a senior research fellow for Landmark Graphics. Prof. Hale returned to the Colorado School of Mines in 2005 as the C. H. Henry Green Professor of Exploration Geophysics. Dave received the Virgil Kauffman Gold Medal from the Society of Exploration Geophysicists (SEG) for his work on dip-moveout processing of seismic data. He also received the Society of Exploration Geophysicists awards for Best Paper in Geophysics in 1992 (imaging salt with seismic turning waves) and Best Paper Presented at the Annual Meeting in 2002 (atomic meshing of seismic images).


May 14 visit - Huub Douma, CGG



Huub Douma, CGG


L-R: Esteban Diaz Pantin and Dr. Douma


Thank you for joining us: 2015 CWP Project Review Meeting, May 11-13

The Center for Wave Phenomena thanks all representatives from our Consortium sponsor companies who attended the 2015 Project Review Meeting of the Consortium Project on Seismic Inverse Methods for Complex Structures. CWP welcomed representatives from all over the globe who generously support our geophysics research. Please contact Shingo Sean Ishida if you need any resources or materials distributed during the meeting.



Paul welcome

CWP Director Prof. Paul Sava welcomes meeting attendees

Troxell and Schmicker

L-R: Bill Troxell and Bob Schmicker (Devon Energy)

John Anderson

John Anderson (ExxonMobil), 2015 CWP Tutorial Lecturer

Daniel Rocha Jr.

CWP student Daniel Rocha, Jr.


Dave and Dean

L-R: Prof. Dave Hale and Dean Witte (Drillinginfo)


CWP student Elias Arias


CWP student Esteban Diaz Pantin

Ehsan Naeini

Ehsan Naeini (Ikon Science)



CWP student Sonali Pattnaik

Jeff Emanuel

Guest speaker Jeff Emanuel (Drillinginfo)


Guest speaker Prof. Guillaume Caumon (Université de Lorraine)

Chris Graziano

CWP student Chris Graziano


Ken and Tony

L-R: University Professor Emeritus Ken Larner and Tongning Yang (BP America)


CWP student Nishant Kamath


Prof. Sava presents on the Comet Radar Explorer (CORE) project


CWP student Vladimir Li



Guest speaker Prof. Tariq Alkhalifah (King Abdullah University of Science and Technology)

Roel query

Prof. Roel Snieder addresses a question on Marchenko imaging


CWP student Oscar Jarillo Michel

Jon Sheiman

Guest speaker Jon Sheiman (Shell International Exploration & Production)


Thomas Cullison

Guest speaker Thomas Cullison (Hess Corporation)

Dave presents

Prof. Hale discusses the evolution of processors in computing

Esteban Paul Nishant

L-R: Esteban Diaz Pantin, Paul Williamson (Total), Nishant Kamath


Derek Parks (Halliburton/Landmark)



CWP student Yogesh Arora

Hui talk

CWP student Hui Wang


CWP student Tong Bai


CWP student Satyan Singh


CWP welcomes five new students
in Summer 2015

This summer, five new graduate students will join the Center for Wave Phenomena:


Lucas Andrade

Lucas Andrade

Xueyi Jia

Xueyi Jia

Qifan LIu

Qifan Liu


Ivan Ning

Ivan Lim Chen Ning

Aaron Prunty

Aaron Prunty




April 27 visit - Umair bin Waheed, King Abdullah University of Science and Technology


Umair bin Waheed

Umair bin Waheed, KAUST


L-R: Umair and Ken Larner, CSM Professor Emeritus

Loralee begins defense

Umair begins his presentation


Umair discusses inversion in anisotropic media



Loralee Wheeler successfully defends her MS thesis

On April 8, 2015, Loralee Wheeler successfully defended her Master of Science thesis at the Colorado School of Mines. Loralee's thesis is titled "Automatic and simultaneous correlation of multiple well logs." She conducted her research under Prof. Dave Hale, her CWP advisor. Following her departure from Mines, Loralee has begun working at Chevron Energy Technology Company in Houston, Texas. Well done, Loralee!


Loralee Wheeler Dickson

Loralee Wheeler,


Loralee with Prof. Dave Hale, her CWP advisor

Loralee begins defense

Loralee begins her Master's thesis defense

Loralee query

Loralee responds to a question from her committee


Roel Snieder returns from his Art of Science tour to the Middle East

Roel Snieder recently completed a tour of the Middle East to present his popular "Art of Science" lecture. Prof. Snieder travelled to six venues across Iran, Qatar and the United Arab Emirates during his February lecture tour for the European Association of Geoscientists and Engineers (EAGE). His presentations were very well received (see tour photos below). The lecture series was organized by EAGE Local Chapter Iran, as well as the Iranian Geophysical Society. Snieder's lecture - given as interactive conversations with participants - are aimed at junior researchers and their mentors in all fields of science and engineering so they may acquire the necessary skills to focus on building understanding, capability and confidence in communication, planning, time management, problem solving, leadership and assertiveness. Snieder also placed an emphasis on the skills required of researchers for successful self-management and development during their respective courses of study.



Roel Snieder

Prof. Roel Snieder
in Iran

Oscar begins

Snieder begins his Art of Science presentation

Oscar begins

Snieder elaborates on leadership with students

Oscar query

Lecture participants and Snieder (center)



March 2 -6 visit - Nori Nakata, Stanford University


Chen Tang

Nori Nakata, PhD
George Thompson Fellow
Stanford University


Dr. Nakata and CWP student Esteban
Díaz Pantin discuss ambient-noise body-wave tomography


Oscar Jarillo Michel successfully defends his MS thesis

On February 6, 2015, Oscar Jarillo Michel successfully defended his Master of Science thesis at the Colorado School of Mines. Oscar's thesis is titled "Estimation of microseismic source parameters by anisotropic waveform inversion." He conducted his research under the guidance of Prof. Ilya Tsvankin. This thesis defense also constituted Oscar's first comprehensive examination of his PhD in geophysics; for which he will continue working with Prof. Tsvankin. Congratulations and well done, Oscar!


Oscar Jarillo Michel

Oscar Jarillo Michel,

Oscar begins

Oscar begins his Master's thesis defense

Oscar query

Oscar addresses a committee question


Filippo Broggini honored at 2014 Gustavo Sclocchi Awards

Filippo Broggini On December 11, 2014, CWP alumnus Filippo Broggini, PhD, was honored at the 2014 Gustavo Sclocchi Awards ceremony for his thesis titled "Wavefield autofocusing and applications to multidimensional deconvolution and imaging with internal multiples." The Gustavo Sclocchi Awards, a joint initiative of the Society of Petroleum Engineers (SPE) Italian Section, European Association of Geoscientists and Engineers (EAGE) and Assomineraria (Italian Petroleum and Mining Industry Association), recognize the best theses in geosciences and petroleum engineering by graduates from Italian universities and/or Italian nationals graduating from universities around the world. Winning theses must be related to hydrocarbons, geothermal exploration, or production activities. As one of six 2014 winners, Dr. Broggini delivered a short presentation on his thesis during the award ceremony, received a prize of 2400 Euros, as well as a free, one-year EAGE/SEP membership. Congratulations, Filippo!


Opt-in to reserve by April 1: Paper copies of 2015 CWP Project Review Book

For Consortium Sponsor representatives only. If you wish to reserve paper copies of the 2015 Project Review book, please respond to Shingo with your requested quantity by Wednesday, April 1, 2015. Your reserved copies will be provided at the CWP Project Review Meeting on May 11-14, 2015. As in previous years, CWP will provide electronic copies of the Project Review book, individual research reports, and other CWP documents on a password-protected webpage, as well as on USB drives distributed during the meeting. Please contact Shingo if you have any questions and thank you for your support of the Consortium.


Duan and Sava's presentation ranked in Top 30 at the 2014 SEG Annual Meeting

Yuting Duan Paul Sava The technical presentation by CWP PhD student Yuting Duan (left) titled "Converted-waves imaging condition for elastic reverse-time migration," was ranked in the top 30 papers presented during the 2014 SEG Annual Meeting in Denver, Colorado. The collaborative work between Duan and Paul Sava (right) was selected out of thousands of presentations at the SEG meeting. Congratulations and well done!




Satyan Singh collaborates with Delft University of Technology

Satyan Singh Kees Wapenaar Joost van Der NeutNishant KamathCWP student Satyan Singh (far left) will visit the Delft University of Technology (TU Delft) in The Netherlands, from January 14 to February 27 to collaborate on his research on 2D autofocus imaging in the presence of a free-surface. He will work closely with the TU Delft seismic imaging team, led by Dr. Kees Wapenaar (center left), as well as with Drs. Joost van Der Neut and Evert Slob (center right, right), in the Department of Geosciences and Engineering. Satyan will also continue his PhD research on Green's function retrieval using Marchenko-type equations and their applications. His previous collaboration with Prof. Wapenaar and Drs. van der Neut and Slob produced a submitted paper to GEOPHYSICS called "Autofocus imaging: Imaging of primaries, internal multiples and free-surface multiples."


January 8 presentation - Chen Tang, University of Texas at Dallas

Chen Tang

Chen Tang,
University of Texas at Dallas


Prof. Ilya Tsvankin and


Chen compares angle-limited images using migration velocity models


Consortium Sponsors, please save this date: 2015 Project Review Meeting

2015 PRM Save the dateConsortium Sponsors, please save the date of the 2015 CWP Project Review Meeting on May 11-13, 2015 in Golden, Colorado. More information will be available soon on this website. Please contact Pamela Kraus, CWP Program Assistant, if you have any questions regarding this meeting. Thank you for your support of our Consortium and we look forward to seeing you next spring!





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