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News & Events - 2012

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December 14 - PhD hooding ceremony for Yong Ma and Xiaoxiang Wang



Yong Ma, PhD, receives his hood from his advisor, CWP Director Prof. Dave Hale


Congratulations, Yong!


Xiaoxiang Wang, PhD, receives his hood from Prof. Ilya Tsvankin


Congratulations, Xiaoxiang!



Cheers to the new PhDs!


The new PhDs and their advisors pose with Dr. Terry Young, Head of the CSM Geophysics Department (center)


Xiaoxiang and Yong are joined by other Department of Geophysics graduates and their advisors


December 3 CWP visit - Thomas Planes, Institut des Sciences de la Terre



Thomas Planes, Institut des Sciences de la Terre (ISTerre)


L-R: CSM Civil and Environmental Engineering Prof. Mike Mooney, Planes and Prof. Roel Snieder


Planes begins his presentation on locating weak changes in heterogeneous media


Planes highlights a challenge in working with heterogeneous media

November 13 CWP visit - Bruce VerWest, CGG



Bruce VerWest, external research and technology communication manager, CGG


Prof. Paul Sava introduces Dr. VerWest to CWP faculty and students


Dr. VerWest begins his discussion on variable-depth streamer acquisition


Dr. VerWest highlights the effect of increasing bandwidth

November 9 CWP visit - CGG representatives



L-R: Radu Mihail, Salvador Rodriguez, CSM Prof. Mike Mooney, Robert Dowle, CSM Geophysics Prof. André Revil, Prof. Roel Snieder, Bruce VerWest and CSM Geophysics Department Chair Dr. Terry Young

Thanks for joining us at the CWP Semi-Annual Meeting

CWP thanks all meeting attendees who took time out of their busy schedules to attend the CWP Semi-Annual Meeting on Tuesday, November 6, 2012 during the SEG annual meeting in Las Vegas. Meeting attendees enjoyed catching up with CWP faculty, students and staff over refreshments and appetizers, as well as browsing mini-posters that showcased CWP students' research.



Meeting attendees enjoy refreshments and appetizers at the CWP Semi-Annual Meeting


CWP Director Dave Hale introduces new students (L-R): Vladimir Li, Yuting Duan, Xinming Wu, Jason Jennings, Stefan Compton, Detchai Ittharat and Johannes Douma


L-R: John Mathewson (Schlumberger), Prof. Hale and CSM senior Loralee Wheeler


L-R: CWP research associate John Stockwell and Bruce VerWest, (CGG)



L-R: 2012 SEG Karcher Award recipients and CWP alumni Jyoti Behura, Alison Malcolm and Pawan Dewangan


Clément Fleury (center) explains his research to meeting attendees


Nori Nakata illustrates a concept from his research on S-wave interferometry from earthquake records


Xinming Wu discusses his research on generating a Wheeler volume



Filippo Broggini (left) explains the highlights of his research on wavefield focusing and reconstruction


Paul Fowler (WesternGeco/Schlumberger), at center, is joined by students (left to right) Natalya Patrikeev and Francesco Perrone


Esteban Diaz (2nd from right) explains how to understand RTM backscattering


L-R: Chinaemerem Kanu discusses his research with CWP alumnus John Anderson (ExxonMobil)



L-R: Gerardo Ronquillo (Instituto Mexicano del Petróleo) and Oscar Jarillo discuss FWI in VTI media


Nishant Kamath (left) provides details of his research on FWI of multicomponent data for VTI media


L-R: Prof. Roel Snieder and CWP alumnus Kurang Mehta (Shell International E&P)


Pengfei Cai (left) discusses his research on joint MVA of PP- and PS-waves for TTI media


Third edition of Tsvankin's book on anisotropy now available

The Society of Exploration Geophysicists (SEG) published the third edition of Ilya Tsvankin's book, Seismic signatures and analysis of reflection data in anisotropic media. Prof. Tsvankin conducted a book signing session on November 6, 2012 during the SEG annual meeting in Las Vegas.



1) The SEG announces Tsvankin's book signing session at the SEG Book Mart


2) Tsvankin receives a request for an autographed copy of his book


3) Tsvankin writes a message of encouragement and signs a copy


4) A happy customer receives his signed copy



5) Tsvankin provides a signed copy of his book to another conference attendee


6) Tsvankin shakes hands with another satisfied customer


7) L-R: Tsvankin, SEG publications manager Ted Bakamjian, Misac Nabighian, Jennifer Cobb and Tom LaFehr


8) Tsvankin and Cobb

(Photos #2-8 provided courtesy of SEG and Barchfeld Photography)


November 2 CWP visit - Shuki Ronen, CGG



Shuki Ronen, vice president for ocean bottom technology, CGG, and consulting professor, Stanford University


Dr. Ronen describes the advantages of Seismic Unix (SU)


Dr. Ronen and John Stockwell, CWP research associate/SU administrator


November 1 CWP visit - Tariq Alkhalifah, King Abdullah University of Science and Technology (KAUST)



Tariq Alkhalifah, King Abdullah University of Science and Technology


L-R: Prof. Paul Sava and Dr. Alkhalifah discuss a seismic imaging model


Xiaoxiang Wang successfully defends his Ph.D. thesis

On October 31, 2012, Xiaoxiang Wang successfully defended his doctoral thesis at the Colorado School of Mines. His thesis is titled "Multiparameter TTI tomography of P-wave reflection and VSP data." Xiaoxiang joined CWP in August 2006 and he conducted his Ph.D. research with the guidance of Prof. Ilya Tsvankin, his advisor. He has been working at Shell Exploration and Production Company in New Orleans, Louisiana since Fall 2012. Congratulations, Xiaoxiang!



Xiaoxiang begins his thesis defense


Xiaoxiang discusses an illustration of an inverted TTI model


Following the conclusion of his thesis defense, Xiaoxiang fields questions from faculty and students


Yong Ma successfully defends his Ph.D. thesis

On October 26, 2012, Yong Ma successfully defended his doctoral thesis at the Colorado School of Mines. His thesis is titled "Waveform-based velocity estimation from reflection seismic data." Yong joined CWP in August 2007 and completed both his M.Sc. and Ph.D. research under his advisor, Prof. Dave Hale. During the summers of 2009, 2010 and 2011, he interned at ConocoPhillips in Houston, Texas. Congratulations, Yong!



Yong expands on reflection seismic data during his thesis defense presentation


Yong addresses questions posed by his thesis committee

October 26 CWP visit - Robert Grimm, Southwest Research Institute



Robert Grimm, director, Department of Space Studies, Southwest Research Institute (SwRI)


Robert and a SwRI colleague conduct time-domain electromagnetic sounding

October 22-23 CWP visit and seminar - Timothy Keho, Aramco Services Company



Timothy Keho, head of geophysics research, Houston Research Center, Aramco Services Company


L-R: Dr. Keho discusses Aramco's exploration and development with Profs. Paul Sava and Dave Hale before his presentation to CWP


CWP faculty and students learn about near surface challenges in Aramco's exploration projects


Fall 2012 editions available: CWP Newsletter and CWP Faculty, Students and Staff Booklet

CWP has updated the CWP Newsletter and CWP Faculty, Students and Staff booklet for Fall 2012. Visit our Brochures page to view or download these and other informational pieces about CWP.

September 14 CWP visit - Vladimir Grechka, Marathon Oil



Vladimir Grechka, senior research scientist at Marathon Oil


L-R: Prof. Ilya Tsvankin, Grechka and student Oscar Jarillo discuss CWP's joint project with Marathon on full-waveform inversion of multicomponent microseismic data

September 13 CWP visit - Kurang Mehta and Paul Hatchell, Shell International E&P



Kurang Mehta, reservoir (QI) geophysicist, Reservoir Surveillance Team, Shell International E&P


Paul Hatchell, principal technical expert, Areal Field Monitoring Team, Shell International E&P


September 12 CWP visit - Serge Shapiro, Freie Universität Berlin



Serge Shapiro, professor of geophysics, Freie Universität Berlin


Profs. Tsvankin and Shapiro enjoy the scenery around the NCAR grounds in Boulder, CO


Clément Fleury successfully defends his Ph.D. thesis

On September 5, 2012, Clément Fleury successfully defended his doctoral thesis at the Colorado School of Mines. His thesis is titled "Wave propagation in complex media, scattering theory and application to seismic imaging." Clément joined CWP in Fall 2009 as a Ph.D. candidate under Professor Roel Snieder. During the summer of 2011, he interned at Schlumberger Cambridge Research in England. Félicitations, Clément!



Clément begins his thesis defense


Clément's thesis advisory committee poses questions


Clément discusses an earth model


CWP Semi-Annual Meeting at 2012 SEG

CWP looks forward to seeing our sponsors and friends at our Semi-Annual Meeting on Tuesday, November 6, 2012 from 5:00 p.m. Click on the Quick Link in the left navigation menu or follow this link to view more information about CWP presentations, activities and events during the SEG annual meeting in Las Vegas, Nevada.


Ashley Fish successfully defends her M.Sc. thesis

On August 24, 2012, Ashley Fish successfully defended her Master of Science thesis at the Colorado School of Mines. Her thesis is titled "Microseismic velocity inversion and event location using reverse time imaging." Ashley graduated from the Colorado School of Mines in May 2011 with a Bachelor of Science degree in geophysical engineering and a minor in the McBride Honors Public Affairs program. She will begin working for Cimarex Energy in Denver, Colorado starting this fall. Congratulations, Ash!



Ashley outlines her thesis


Geophysics Dept. faculty and students attend Ashley's defense


Ashley explains the role of RTM in her thesis


CWP welcomes six new students in Fall 2012

Six new graduate students joined the Center for Wave Phenomena in Fall 2012. Welcome to all new students and all the best with your research endeavors! The new students are:





Yuting DUAN




Vladimir LI




Xinming WU


Two A-Team papers to be featured on Earth Emphasis website

The Earth Emphasis website will soon feature two research papers produced by Prof. Ilya Tsvankin's Anisotropy-Team at CWP: Mamoru Takanashi and Ilya Tsvankin's paper "Moveout analysis of wide-azimuth data in the presence of lateral velocity variation" (click here for PDF of paper abstract) recently published in Geophysics, as well as Bharath Shekar and Ilya Tsvankin's paper "Anisotropic attenuation analysis of crosshole data generated during hydraulic fracturing" (click here for PDF of paper abstract) recently published in The Leading Edge. The Earth Emphasis website selects "breaking journal articles considered to represent the best in Earth Science and Environmental Studies."


July 18 CWP visit - Eric Larose, Institut des Sciences de la Terre



Dr. Eric Larose, CNRS researcher at Institut des Sciences de la Terre (ISTerre)


L-R: CWP students Ali Knaak, Filippo Broggini, Dr. Larose and Satyan Singh discuss Dr. Larose's research on the mechanics of heterogeneous media, acoustics and seismology


Dr. Larose takes a moment during his visit with Satyan, Clément Fleury, Prof. Roel Snieder, Ali and Filippo


2012 CWP Annual Project Review Meeting files now available

CWP thanks all Consortium Sponsors for generously supporting our research. We are pleased to make available publicly the documents provided to attendees of the 2012 project review meeting of the Consortium Project on Seismic Inverse Methods for Complex Structures, May 14-17, 2012 in Breckenridge, Colorado. Go to the CWP Annual Project Review Meeting files page and click on the "2012 CWP Project Review Meeting" link to view and/or download the documents.


SEG to present three CWP alumni with prestigious J. Clarence Karcher Awards for 2012



Jyoti Behura


Pawan Dewangan


Alison Malcolm

The Society of Exploration Geophysicists (SEG) will present the prestigious J. Clarence Karcher Award to three CWP alumni: Jyoti Behura, Pawan Dewangan and Alison Malcolm.

Drs. Behura (2009 graduate), Dewangan (2004 graduate) and Malcolm (2005 graduate) will be recognized and presented with their awards during SEG's 2012 Annual Meeting in Las Vegas, Nevada, November 4-8.

The Karcher Award - given only with the unanimous decision of the SEG Honors and Awards Committee as well as the SEG Executive Committee - is awarded in recognition of significant contributions to the science and technology of exploration geophysics by a young geophysicist of outstanding abilities.


Paul Sava elected to serve two-year term on EAGE Board


Paul Sava, CWP faculty and Colorado School of Mines associate professor of geophysics, was elected to serve on the European Association of Geoscientists and Engineers (EAGE) Board. He will commence his term from June 2012 for two years, ending in June 2014. Sava's responsibilities as the EAGE Education Officer will focus on directing and shaping EAGE's educational activities, including but not limited to: courses, lectures and student programs.

EAGE, founded in 1951, is a professional association for geoscientists and engineers. It is an organization with a worldwide membership providing a global network of commercial and academic professionals. The multi-disciplinary and international association consists of members who are professionally involved in, or studying, geophysics, petroleum exploration, geology, reservoir engineering, mining and civil engineering.


CWP making waves at 2012 EAGE meeting in Copenhagen

As in previous years, CWP faculty and students once again presented their research at the 74th EAGE Conference and Exhibition in Copenhagen, Denmark. The annual EAGE meeting - an event composed of both a conference and exhibition - showcases cutting-edge developments in the areas of geophysics, geology and reservoir/petroleum engineering and is often recognized as the largest geoscience event in the world.



Paul Sava discusses illumination compensation for image-domain wavefield tomography, which he co-authored with CWP student Tongning Yang and Jeff Shragge (Univ. of Western Australia)


Francesco Perrone discusses wavefield tomography based on image correlation


L-R: CWP alumni Tariq Alkhalifah (KAUST), Mamoru Takanashi (JOGMEC) and Ilya Tsvankin with Takanashi's poster presentation on migration velocity analysis



Clément Fleury presents on reverse-time migration with internal multiples


CWP research associate John Stockwell, Jr. prepares for his presentation on Seismic Unix (SU) software


L-R: Stockwell poses with Prof. Abdullatif Al-Shuhail (King Faud University) and CWP alumnus Abdelmohsin Aldolaijan (formerly of Saudi Aramco)



L-R: CWP alumni Zhaobo Meng (In-Depth Geophysical) and Ivan Vasconcelos (Schlumberger Cambridge Research) with Clément, Francesco and former CWP visiting scientist Jürg Hunziker


Tsvankin contemplates his next move in between conference sessions


Tsvankin presents a session on interval attenuation and velocity anisotropy, which he co-authored with CWP post-doctoral fellow Jyoti Behura, Edward Jenner (ION Geophysical) and Alex Calvert (Maersk Oil)


May 21-24: Instituto Mexicano del Petróleo (IMP) representatives visit CWP



L-R: Ilya Tsvankin, Gerardo Ronquillo Jarillo, Alfonso González Ibarra and CWP student Oscar Jarillo


Oscar and Gerardo discuss seismic modeling codes


CWP faculty and students welcome Alfonso and Gerardo


Thank you for joining us - 2012 Project Review meeting, May 14-17

The Center for Wave Phenomena thanks all representatives from our Consortium sponsor companies who attended the 2012 Project Review meeting of the Consortium Project on Seismic Inverse Methods for Complex Structures. CWP welcomed over 100 representatives from all over the globe during our May 14-17 meeting. Thank you all for your continued support of CWP research. Sponsor representatives may contact Shingo Sean Ishida, CWP Communications Specialist, if they require any copies of resources or materials distributed during the meeting. Alternatively, sponsors may click here and use the same Username/Password distributed at the meeting.



CWP welcomes sponsor representatives to the 2012 Project Review meeting


Jyoti Behura (CWP Post-doctoral fellow) leads the CWP Tutorial on Day 1


L-R: Dave Hale (CWP director), Jim Gaiser (Geokinetics) and Bruce VerWest (CGG Veritas)


Special Guest Presenter Constantin Gerea (Total E&P) and CWP faculty Paul Sava exhange ideas



L-R: CWP students Bharath Shekar, Clement Fleury and Francesco Perrone with Patrice Guillaume (CGG Veritas)


CWP faculty Roel Snieder presents a session on how laser excites elastic waves at a fracture


CWP students Ashley Fish (left) and Ali Knaak (right) review presentation slides between sessions


L-R: Nicola Bienati (Eni S.p.A), Francois Audebert (Total E&P) and CWP student Simon Luo discuss 3D seismic images



Tariq Alkhalifah (KAUST), Special Guest Presenter on Day 2



Jon Sheiman (formerly of Shell E&P) discusses a presentation by Roel Snieder on time reversal focusing


L-R: CWP faculty members Sava, Snieder, Hale and Ilya Tsvankin address sponsor queries at the CWP Business Meeting


L-R: Lorenzo Casasanta (CGG Veritas) relaxes during a break with CWP students Bharath Shekar and Filippo Broggini


Conrad Newton successfully defends his MSc. thesis

On May 16, 2012, Conrad Newton successfully defended his Master's thesis at the Colorado School of Mines. His thesis is titled "Estimating intrinsic attenuation from seismic interferometry and time reversal." Conrad joined CWP in the summer of 2010 and worked on estimating attenuation using deconvolution interferometry and time reversal, with Prof. Roel Snieder, his CWP advisor. After graduation, he has been working at MicroSeismic Inc., a geophysical services company in Denver, Colorado. Congratulations, Conrad!



Conrad Newton IV, MSc. (Congratulations, Conrad!)


Conrad highlights an example of intrinsic attenuation


Conrad poses with CSM Professor Emeritus Norm Bleistein (center) and fellow students (L-R) Chinaemerem Kanu, Allison Knaak and Filippo Broggini


April 30 CWP Seminar - Jan Douma, Shell International E&P


Jan Douma, Team Leader, Seismic Imaging Development projects in the Gulf of Mexico, Shell International E&P

Dr. Douma describes Shell's upstream projects to CWP faculty and students


Welcome! Two new Consortium sponsors - Cimarex Energy and Devon Energy 

The Center for Wave Phenomena is very pleased to announce that two new companies recently joined the Consortium Project on Seismic Inverse Methods for Complex Structures. The new sponsors are (in alphabetical order): Cimarex Energy Company and Devon Energy Corporation.





March 16 Spring Seminar - Tariq Alkhalifah, King Abdullah University of Science and Technology (KAUST)



Tariq Alkhalifah, King Abdullah University of Science and Technology


Dr. Alkhalifah explains his concepts about anisotropy and imaging


Dr. Alkhalifah addresses questions from CWP faculty and students


Nature Magazine and AGU Journal of Geophysical Research highlight Nakata and Snieder's research on near-surface shear wave velocities in Japan 


Shear-wave velocities estimated by annual stacked seismic interferometry

Seasonal variation in shear-wave velocity with precipitation in southern Japan

The occurrence of earthquakes and even heavy rainfall reduce the near-surface velocity of a type of seismic wave responsible for the worst damage during earthquakes. Nori Nakata and Roel Snieder studied "shear" waves using seismic interferometry, which measures how the waves propagate from depth to the surface. The authors analysed the average velocities of shear waves in nearly 112,000 quakes — most of them minor — recorded between 2000 and 2010 by KiK-net, Japan's network of seismic stations. They found that, three months after major earthquakes, wave velocities recorded at nearby stations were 3–4% lower than normal. Follow these links to see more about Nakata and Snieder's research in Nature and the Journal of Geophysical Research.


Update: Behura to lead CWP Tutorial at May 2012 Project Review Meeting

The CWP is pleased to announce that Jyoti Behura, formerly of BP and current CWP post-doctoral fellow, will lead this year's CWP tutorial on May 14, 2012. Jyoti's tutorial is titled, "Attenuation anisotropy: Analysis and estimation." The tutorial will address basic aspects of seismic wave propagation in the presence of attenuation anisotropy and discuss methodologies for estimating the attenuation anisotropy parameters from field data. To attend the tutorial, send an RSVP to Pam Kraus, CWP program assistant. See more information about the project review meeting here.


February 27 CWP Seminar - N. Ross Hill, Chevron Energy


N. Ross Hill, Geophysical Advisor at Chevron Energy Technology Company

Dr. Hill describes the complexity of travel time surfaces for subsalt wavefields


E&P Magazine highlights Tsvankin's fracture characterization research

RoelTeachingThe February 2012 edition of Hart Energy's E&P Magazine features Ilya Tsvankin and his Anisotropy-Team's research on seismic fracture characterization. The article, by E&P senior editor Rhonda Duey, discusses the role of geophysical methods in "unconventional" shale oil and gas plays. Mapping areas of high fracture density from seismic data helps identify "sweet spots" of increased production in many shale reservoirs. Tsvankin's group is developing seismic inversion and fracture-detection methods based on realistic azimuthally anisotropic models of fractured formations.

Click on the image to download the PDF of the E&P article.


Snieder teaches a workshop on career skills to academics in Saudi Arabia

KAUSTWorkshopRoelTeaching Roel Snieder was invited as a guest presenter to lead a workshop on January 23-25, 2012 at the King Abdullah University of Science and Technology (KAUST) in Jeddah, Saudi Arabia. Prof. Snieder will lead a workshop called "Career Skills for Academics" for KAUST faculty, post-doctorate students and teaching assistants. His workshop will focus on providing scientists with practical skills needed in a successful research career, as well as developing effective research habits and teaching skills. His workshop will also integrate lessons and perspectives found in his book, "The Art of Being a Scientist."

Click on the image of the workshop poster to download the PDF version.



Save the Date: 2012 CWP Project Review Meeting

Save the date on your calendars for the 2012 annual meeting of the Consortium Project on Seismic Inverse Methods for Complex Structures.

Date:  May 14-17, 2012
Venue: Beaver Run Resort and Conference Center, Breckenridge, Colorado, USA

Additional details are forthcoming. Stay tuned!



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