This is a very special year for CREWES as it marks 25 years of continuous operation of the project. We are the oldest re-search project at the University of Calgary and one of the larg-est. Our longevity and size are fundamentally enabled by the support we have enjoyed from our Sponsors and from Cana-da's federal funding agency for science and engineering, NSERC. We are also fortunate to have a willing and capable research staff and an ever changing student contingent who are excited to be with us. These circumstances make for a pleasant and collegial work environment that is very nurtur-ing for research.

We have had several sponsors that have been with us through the entire 25 years, although sometimes with corporate name changes. In this regard, we recognize Chevron, Cono-coPhillips, ExxonMobil (Imperial), Husky Energy,

Landmark Graphics and Shell. We also acknowledge that Encana has been with use for the entire run but, regretfully, are unable to continue this year. Current sponsors that have been with us or 10 or more years are CGG, Devon, Petrobras, Saudi Aramco, Sensor, Talisman and WesternGeco – we are very proud and honoured to have worked with all of these spon-sors for so many years. We are also delighted to welcome as new sponsors Acceleware, PTTEP (Thailand) Suncor, and Woodside Energy.

Our research productivity start-ed strong and has grown stronger. Over the lifetime of the project, our students have successfully defended 99 Mas-ters and 34 Doctors theses. Many of these theses have proven to have ongoing influ-ence in our industry. We have also delivered 1379 research reports to our sponsors plus many software modules and

seismic data sets. Of these many research reports, a signif-icant portion have evolved into conference presentation, ex-panded abstracts, and journal publications.

For most of our 25 years, we have also enjoyed NSERC sup-port through their CRD (Collaborative Research and Development) grant program. Currently we are in the final year of a 5 year grant titled “Improved seismic imaging for reservoir monitoring and sus-tainable energy development”. As a result, we are busily pre-paring a new proposal to sub-mit to NSERC by the end of the summer. Such grants have played a crucial role in the evo-lution of CREWES and the process of application and sub-sequent peer review has greatly helped focus and refine our research.

Of note about current activity, we have seven to eight students who will defend their theses this year by summer's end, and nine new students will be join-ing us in September. We are also planning a major geophysi-cal infrastructure development

25 Years of Research, Innovation and Technology

Volume 25, Issue 1

June 2013

Meet the new students 2-3

Student Scholarships Director Profile: Larry Lines

3 4

Technical Paper by Joe Wong

5-8

Conference Presentations 2012 Sponsors Meeting

9 9

2013 Sponsors Meeting Lists of Sponsors and CREWES personnel

10 11

Inside this issue:

a a News News

www.crewes.org

Larry Lines and his Graduate Students: Left: Front row (left to right): Naimeh Riazi, Larry Lines, Xiaoqin “Jean” Cui.

Back row (left to right): Glen Young, Abdul-Nassir Saeed, Mahbub “Bob” Alam, Nawras Al-Khateb.

See page 4 for more information...

and an associated fieldwork. This summer we are preparing to drill a few (2-4) shallow wells (~150m) at our Priddis test site. All wells will be cased and ce-mented and one will have a 40 level 3C geophone tool attached outside casing. Among the pos-sible field experiments for this facility are the measurement of source radiation patters and the characterization of near- surface attenuation.

We hope you are planning to join us for our 25th annual meeting, being held this year from Decem-ber 4 - 6 at the Banff Park Lodge in Banff, Alberta.

Best wishes

Gary Margrave Director

Celebrating 25 Years

CREWES News Page 2

Did you know that since its inception, CREWES has had 99 students

defend their M.Sc. theses and 34 students defend their Ph.D. theses?

Meet the New CREWES Students

Babatunde Arenrin M.Sc. Student

(Supervisors: John Bancroft and Gary Margrave) Babatunde Arenrin earned his B.Sc. Degree in Geophysics from the University of Lagos, Nigeria in August 2005. He received the DIC and MSc in Petroleum Geophysics from Imperial College London, UK in September 2010. During his M.Sc. he had his internship with Western-Geco DP centre Stavanger Norway between July and September 2010 where his research focused on time lapse studies.

Tunde joined CREWES in January 2013. His research interests include full waveform inversion, seismic imaging, rock physics and dynamic reservoir characterization.

Recent Theses:

Melissa Hernández (M.Sc.) Internal multiple prediction: an application on synthetic data, physical modeling data and field data Abdolnaser Yousefzadeh (Ph.D) High Resolution Seismic Imaging using Least Squares Migration Andrew Nicol (M.Sc.) A multicomponent seismic investigation of fracturing, Saskatchewan, Canada David Cho (Ph.D.) Elasto-static and dynamic analysis of subsurface fracture phenomena Full copies of student theses can be found at our website: www.crewes.org

Rafael Asuaje M.Sc. Student

(Supervisor: Don Lawton) Rafael Asuaje, originally from Venezuela, earned his B.Sc. in Mechanical Engineering from Kettering University in Flint, MI in 2005. After work-ing for eight years in the automotive industry, Rafael made the decision to return to school and moved to Calgary in late 2012.

Rafael joined CREWES in January 2013 and is working with Dr. Don Lawton on VSP imaging.

Sina Esmaeili M.Sc. Student

(Supervisor: Gary Margrave)

Sina Esmaeili received his B.Sc. in physics in 2009 and his M.Sc. in theoretical physics in 2011, both from the Azad University of Tehran (science and research branch), Iran . Sina moved to Calgary in late 2011 and worked in the University of Calgary’s department of Physics and Astronomy in summer 2012.

Sina joined CREWES in January 2013 and is currently working with Dr. Gary Margrave on seismic inversion.

Congratulations to Helen Isaac whose poster presentation entitled “Analysis of the Low Frequency Content of Seismic Data Acquired During an Experiment at Hussar, Alberta, Canada”, coauthored with Gary Margrave, Monika Deviat and Pam Nagarajappa, has been awarded the best Geophysical Poster Presentation at GeoConvention 2013.

Page 3 Volume 25, Issue 1

Meet the New CREWES Students

Visit us at www.crewes.org

Shahpoor Moradi Ph.D. Student

(Supervisor: Kris Innanen) Shahpoor Moradi earned his B.Sc., M.Sc. and Ph.D. in theoretical physics from Razi university, Kerman-shah, Iran. After finishing his Ph.D. in 2006, he held a faculty position at Razi university. Also he worked as a visiting researcher in several institutes; like Institute in Quantum Computing and Perimeter Institute in Waterloo, ON, and Institute of Quantum Information Sciences in Calgary, AB. His past research was Quantum fields and Quantum information.

Shahpoor joined CREWES in January 2013 and working on the seismic inversion and anelastic scattering.

Congratulations to Don Lawton whose paper entitled “Postearthquake seismic reflection survey, Christchurch, New Zealand”, coauthored with Malcolm B. Bertram, Kevin W. Hall, and Kevin L. Bertram, has been selected as the Best Poster Paper Presented at the 2012 SEG Annual Meeting. Don will be receiving his award at the SEG this year in Houston.

Above: Malcolm Bertram, Kevin Bertram, Don Lawton and Kevin Hall in New Zealand, 2011

CREWES Student Scholarship Recipients The 2013 Winter Semester saw three graduate students within the CREWES Project receiving academic scholarships totalling $9,000 on top of the $25,700 that was distributed in the fall to five additional students. The faculty and staff of CREWES would like to congratulate the following student recipients:

Jessie Arthur: Alberta Graduate Scholarship - $3,000

Chris Petten: Alberta Graduate Scholarship - $3,000

Glen Young: Alberta Graduate Scholarship - $3,000

Congratulations to Steven Kim whose poster presentation entitled “Exact, linear and non-linear AVO in terms of poroelastic parameters”, coauthored with Kris Innanen, received an Honourable Mention Student Geophysical Poster Presentation at GeoConvention 2013.

Director Profile—Larry Lines Laurence “Larry” Lines received B.Sc. and M.Sc. Geophysics degrees from the University of Alberta (1971, 1973) and a Ph.D. in Geophysics from the University of British Columbia (1976). His industrial career included 17 years with Amoco in Calgary and Tulsa (1976-1993). Following a career in industry, Dr. Lines held the NSERC/Petro-Canada Chair in Applied Seismology at Me-morial University of Newfoundland (1993-1997) and the Chair in Exploration Geophysics at the University of Calgary (1997-2002). From 2002-2007, he served as the Head, Department of Geology and Geophysics at the University of Calgary. In profes-sional service, Larry was the President of the Society of Exploration Geophysicists (SEG) in 2008-2009. Previous to that, he served the SEG as Geophysics Editor (1977-99), Distinguished Lecturer, Geophysics Associate Editor, Translations Editor, Publi-cations Chairman, and as a member of The Leading Edge Editorial Board. He has served as CJEG Editor twice. Larry and co-authors have won the SEG’s Best Paper in Geophysics Award twice (1988, 1995) and have twice won Honorable Mention for Best Paper (1986, 1998). Larry is an Honorary Member of SEG, CSEG, and the Geophysical Society of Tulsa. Additionally, he is a member of APEGGA, CGU, EAGE, and AAPG. Larry is married with two children, and enjoys hobbies of choir, softball, and hik-ing with his Alaskan malamute.

In 2010 Dr. Lines proposed to the CSEG executive to restart the CSEG Journal as an electronic publication. The original Journal had gone on hiatus after 1999 as a cost cutting measure initiated when the society was experiencing tough economic times. As a consequence the society no longer published a peer-reviewed publication. Larry voiced a growing sentiment that there needed to be a peer-reviewed journal focusing on Canadian exploration geophysics. He argued that by publishing online, the CSEG could create a high quality publication but still do it in a cost effective manner. He made a persuasive argument and as one last enticement even volunteered to serve as Editor. The executive voted in favour of his proposal and now three years later the Journal is a going con-cern, with Larry still serving as Editor. Having written for the Journal myself, I can appreciate Larry’s initiative and all his hard work in making this happen.

Above citation by Jon Downton

Larry joined the University of Calgary in 1997, after spending four years at Memorial University. Larry also joined CREWES in 1997, and formed CHORUS (Consortium for Heavy Oil Research by University Scientists) in 2002. Research projects currently underway by Larry and his graduate students are as follows:

Time-lapse 3-D seismic reservoir monitoring of heavy oil fields (Naimeh Riazi, Nassir Saeed, Scott Spackman) During the production of heavy oil, there are changes in the reservoir that affect both seismic amplitudes and traveltime. The differencing of inversions for both prestack and poststack seismic data can optimize enhanced oil recovery. These projects are in both CHORUS and CREWES.

Rock physics relating seismic and well log data to reservoir simulation (Mahbub Alam, Nawras Al-Khateb, Amir Shamsa). Rock physics plays an essential role in relating reservoir simulation models to geomodels based on well logs, cores, and seismic data. These applications to heavy oil fields are done within CHORUS.

Seismic modeling of unconventional reservoirs (Xiaoqin Cui and Ahmed Javanbahkti). The finite-difference modeling of seismic responses for fractures or wormholes requires special boundary conditions. The mathematics and computer modeling is being developed for these applications. These projects are in both CHORUS and CREWES

Seismic inversion and imaging (Haitham Hamid, Glen Young). The applications of seismic inversion methods that utilize geo-logical constraints are producing superior results compared to conventional methods.

Page 5 CREWES News

The 25th Annual Sponsors Meeting will be held in

Banff, Alberta from December 4-6, 2013.

Abstract

In real-world seismic surveys, event arrival times are important observable quantities. Event arrival times are associated with the group velocities of elastic waves propagating through isotropic and anisotropic media. In most geophysical discussions on anisotropic VTI media, approximate formulas are used to quantify qP and qSV group velocities. Examples are the linearized approx-imate expressions for phase velocity involving the Thomsen parameters (Thomsen, 1986). Exact expressions for group velocity in VTI media can be derived from the exact expressions for phase velocity. The exact expressions are not much more complicated than the linear approximations, but their use results in more accurate analyses of real-world seismic data for all the common acquisi-tion geometries (surface reflection, VSP, and crosswell).

Introduction

A transversely isotropic or VTI medium has a vertical symmetry axis and possesses anisotropic velocities that are isotropic in any horizontal plane, but vary in any vertical plane with angle θ measured from the symmetry axis. Such media support three types of elastic waves: the coupled quasi-pressure (qP) and quasi-shear (qSV) waves with polarization within the vertical plane, and the transverse shear (SH) wave with horizontal polarization perpendicular to the propagation plane.

Exact expressions for the x- and z-components (vgx,vgz) of the group velocity in VTI media can be derived using the method of characteristics described by Červený (2001). For each wave type M = qP, qSV, or SH, the phase velocity function VM(θ) has an exact functional form dependent on the quantities (ρ, C11, C33, C44=C55, C66, C13, sin2θ, cos2θ), where ρ is the density and Cmn are the Voigt elastic parameters for VTI media. For each wave type, the characteristic function GM(px, pz) can be formed from the phase velocity function VM(θ) , where (px, pz) are slowness components. Group velocity components (vgx,vgz) are then calculated by taking the derivatives of GM(px, pz) with px and pz.

For a given wave type M, the phase velocity function VM(θ), the characteristic function GM(px, pz), and the x- and z-components for group velocity (vgMx,vgMz) are found by evaluating the following expressions:

where the exact form of fM depends on the wave type (or details, see Equations 3.6.28 and 3.6.30 in Červený, 2001). The angle θ is a parametric variable, and all equations involving it are parametric equations. The group angle ϕM = arctan(vgMx/vgMz), measured from the symmetry axis, gives the direction of energy propagation; ϕM is different from the parametric angle θ.

Exact formulas for qP, qSV, and SH group Velocities in VTI media

Volume 25, Issue 1 Page 5

Submitted by Joe Wong

Exact formulas for qP, qSV, and SH group Velocities in VTI media (continued)

To begin, we define the following quantities that are related to the density ρ and Voigt elastic parameters Cmn for VTI media (Carcione, 2007):

The quantities Cmn/ρ have units of velocity squared, and are usually named Amn in the literature. Given expressions 1.1 to 1.6 and equation 2.1 to 2.7, we can now write exact expressions for phase and group velocities in VTI media.

For the qP wave:

For the qSV wave:

Page 6 CREWES News

Exact formulas for qP, qSV, and SH group Velocities in VTI media (continued)

For the SH wave:

Equations 5.2 and 5.3 are equivalent to:

Equation 5.6 shows that for the SH wave type, the group velocity surface and the slowness surface are both elliptical in shape (cf. Carcione, 2007; Equation 1.181).

We have restricted our discussion to a transversely isotropic (VTI) medium with a vertical symmetry axis. The extension to media with tilted or horizontal symmetry axes (commonly referred to as TTI or HTI media) is straightforward, as final propaga-tion angles can be found from the VTI angles through rotation by an angle equal to that between the symmetry and vertical axes.

Examples

MATLAB software based on the above equations was used to generate examples of the qP, qSV, and SH group velocities. These examples are shown on Figures 1 to 3 for three VTI substances: beryl, ice, and olivine. Values for the densities and the five elastic constants C11, C33, C55, C66, and C13 for these crystalline materials were taken from Musgrave (2003).

To check the accuracy of the derived ex-pressions, selected points taken from the plots for beryl in Musgrave’s book. These points are plot-ted as solid dots on Figure 1 in direct comparison with the curves produced by the MATLAB code. We can see that curves for the qP, qSV, and SH group velocities agree well with the points from Musgrave’s book .

On the examples, we can clearly see the differences in group velocities for the qSV and the SH wave types. These differences are the origin of shear-wave splitting. For the olivine example, the anisotropic elastic constants are such that there are triplications in the calculated qSV group velocity. We note that such triplications are predicted for substances with pure crystal structures and are quite subtle. For these reasons, they are unlikely to be observed in seismic data measured through rocks in real geological formations.

Figure 1: Group velocities for beryl: ρ = 2850 kg/m3, C11=287.3, C33=241.8, C55=70.2, C66=94.2, and C13 = 72.8 (Cmn units =GPa).

Exact formulas for qP, qSV, and SH group Velocities in VTI media (continued)

References Daley, P.F., Krebes, E.S., and Lines, L.R., 2010. A comparison of exact, approximate, and linearized ray-tracing methods in trans-

versely isotropic media, CREWES Research Reports, 22, 15.1-15.21. Carcione, J.M., 2007. Wave Fields in Real Media, Handbook of Geophysical Exploration (Section 1: Seismic Exploration, Vol. 38),

K. Helbig and S. Treitel, ed., Elsevier, Amsterdam. Červený, V., 2001. Seismic Ray Theory, Cambridge University Press, Cambridge. Musgrave, M.J.P., 2003. Crystal Acoustics, Acoustical Society of America, American Institute 0f Physics. Thomsen, L., 1986. Weak elastic anisotropy, Geophysics, 51, 1954-1966.

Page 8 CREWES News

Figure. 2: Group velocities for ice: ρ = 980 kg/m3, C11=13.8, C33=15.0, C55, = 3.2, C66 = 5.35, and C13 = 5.8 (Cmn units = GPa).

Figure 3: Group velocities for olivine: A11=15.06, A33=10.84, A55, = 3.12, A66=4.00, , and A13 = 1.64 (Amn units = [km/s]2; from Daley et al , 2010).

Upcoming CREWES Conferences Presentations

Volume 25, Issue 1 Page 9

Surface-consistent Matching Filters for Time-lapse Processing - Application to the Violet Grove Data Set: M. Al Mutlaq and G. Margrave

Time lapse attenuation analysis to estimate permeability in hydraulically induced fractures: D. Cho, B. Goodway, M Perez, A Iverson and G.F. Margrave

Gabor Deconvolution of Nearsurface Georadar Data for improved Fault Imaging: R.J. Ferguson, M. Ercoli, A. Frigeri and G. Margrave

Analysis of seismic attenuation and multiple scattering with a version of the Shannon Entropy: K.A. Innanen

Model-Based Inversion of Low-Frequency Seismic Data: P. Gavotti, D.C. Lawton, G. Margrave and J.H. Isaac

A Framework for Approximation of Elastic Time-Lapse Difference AVO Signatures and Validation on Physical Modeling Data: S. Jabbari and K. Innanen

Exact and Approximate Expressions for Poroelastic AVO: S. Kim and K. Innanen

Imaging Unknown Faults in Christchurch, New Zealand, after a M6.2 Earthquake: D.C. Lawton, M.B. Bertram, K.W. Hall, K.L. Bertram and J. Pettinga (University of Canterbury)

AVAZ Inversion for Fracture Orientation and Intensity - A Physical Modeling Study: F. Mahmoudian and G.F. Margrave

Please see our website for full abstracts www.crewes.org

75th EAGE Conference & Exhibition, London, UK. June 10-13, 2013

24th Annual Sponsors Meeting The 24th Annual Sponsors meeting was held in Banff, Alberta from November 28-30, 2012. 87 sponsor representatives from 26 spon-soring companies attended the meeting making this our hightest attended meeting to date. Representatives gathered with faculty, staff and students of the CREWES project to hear presentations showcasing the most recent research being conducted by CREWES. The ab-stract book containing 85 research can be found on our website: (http://www.crewes.org/ForOurSponsors/ResearchReports/).

As in previous years, attendees were asked to complete a questionnaire and were asked for their interest in a variety of research topics. The results are below:

25th Annual Sponsor’s Meeting CREWES is celebrating its 25th Anniversary in 2013!!!!

The 25th Annual CREWES Sponsor’s Meeting will be held in Banff, Alberta this year from December 4-6, 2013. Please take note in the change in the timing of the meeting as we are unable to hold the meeting the last week of November this year.

The meeting’s venue is the beautiful Banff Park Lodge (www.banffparklodge.com). Historically, every sponsoring company has sent from one to ten delegates to the meeting to attend the two days of technical sessions, and to participate in the social events for some great networking opportunities. The meeting gives sponsoring delegates the opportunity to interact with graduate students and learn of the cutting edge research being performed by CREWES at the University of Calgary.

A block of rooms has been reserved for December 4-6 for our meeting, but the rooms are only being held for us until mid October before they are being released back to the general public, so please book your room early to avoid disappointment!

Room Rates are $103 per day + food. Due to difficulties obtaining sponsors to cover the costs for the Thursday banquet, the charge for this meal will also now be added to your room charges. The hotel has offered this room rate for the nights before and after the conference as well, please call 800-661-9266 to make arrangements for these extra nights..

Please check our website (http://www.crewes.org/ForOurSponsors/Meeting/) in the coming months for updates and additional information. We look forward to seeing all of you in December and renewing our old acquaintances and hopefully making new friendships as well.

Page 10 CREWES News

In celebration of our 25th Anniversary, CREWES has commissioned authentic rugby shirts with a special 25th Anniversary logo. The shirts are Barbarian brand black rugby shirts with a white collar. Shirts are $65 each, and can be ordered from Laura Baird (labaird@ucalgary.ca). The next order will be placed in fall 2013 with a predicted delivery date of October 2013. Sample sizes ranging from x-small to xxx-large may be found at the CREWES office at the University of Calgary campus.

CREWES Rugby Shirts for sale

Left: Faranak Mahmoudian and Helen Isaac modelling CREWES rugby shirts.

Above: Field work in the rain sometimes results in the occasional stuck vehicle. University of Calgary Mini Vibe May 31, 2013

Right: Graduate Students Babatunde Arenrin, Rafael Asuaje and Penny Pan setting up geophone s and cables.

We would like to acknowledge and thank our 2013 sponsors:

Acceleware (NEW!!)

BHP Billiton Petroleum (Americas) Inc.

CGG

Chevron Corporation

ConocoPhillips

Devon Energy Corporation

DownUnder GeoSolutions

Exxon Mobil Corporation

Geokinetics Inc.

Geophysical Exploration & Development Corporation (GEDCO)

Husky Energy Inc.

INOVA Geophysical Equipment Ltd.

Landmark Graphics Corporation

Nexen Inc.

Northwest Geology Institute, CNCP

Petrobras

PTT Exploration and Production Public Company Ltd. (NEW!!)

Saudi Aramco

Sensor Geophysical Ltd.

Shell Canada Limited

Suncor Energy Inc. (NEW!!)

Talisman Energy Inc.

TGS-NOPEC

Tullow Oil p.l.c.

WesternGeco

Woodside Energy (USA) INC (NEW!!)

A list of our Sponsors

Dr. Rolf Maier: maier Dr. Peter Manning: pmmaning Dr. Joe Wong: wongjoe Dr. Vladimir Zubov: vzubov Active Graduate Students: Mahdi Al Mutlaq: mhalmutl Mohammed Alarfaj: malarfaj Babatunde Arenrin: arenrin Jessie Arthur: jmarthur Roohollah Askari: raskari Rafael Asuaje: rjasuaje Peng Cheng: chengp Raúl Cova: rjcova Jean Cui: xicui Sina Esmaeili: sesmaeil Patricia Gavotti: pegavott Saul Guevara: seguevar Dawson Holloway: dehollow Shahin Jabbari: sjabbari Hassan Khaniani: khaniani Steve Kim: smkim Heather Lloyd: hjelloyd Faranak Mahmoudian: fmahmoud Shahin Moradi: smoradi Shahpoor Moradi: moradis Davood Nowroozi: dnowrooz Penny Pan: panp Wenyong Pan: wpan Chris Petten: ccpetten A.-Nassir Saeed: ansaeed Adrian Smith: adrsmith

CREWES Affiliated Students Oliver Laher: oliver.lahr@cggveritas.com Li Lu: lilu

Todor Todorov: titodoro Ben Wards: bdwards Marcus Wilson: wilsonmr

Contact Note: Readers wishing to contact staff and students should add the domain @ucalgary.ca to the usernames listed below unless otherwise listed

Leadership: Dr. Gary Margrave, Director: margrave Dr. Don Lawton, Associate Director: lawton Dr. Kris Innanen, Associate Director: k.innanen Laura Baird, Admin Manager: labaird Kevin Hall, Tech Manager: kwhall Associated Faculty and Scientists: Dr. John Bancroft, Adjunct Faculty: bancroft Dr. Robert Ferguson, Associate Faculty: ferguson Dr. Michael Lamoureux, Adjunct Faculty: mikel Dr. Roy Lindseth, Technical Advisor: royolind@telus.net Dr. Larry Lines. Adjunct Director: lrlines Dr. Robert Stewart, Adjunct Director: rrstewart@uh.edu Dr. Brian Russell, Adjunct Faculty: brian.russell@cgg.com Dr. Matt Yedlin, Associate Professor: matty@ece.ubc.ca

Research Staff: Kevin Bertram: klbertra Malcolm Bertram: bertram Dr. Pat Daley: pdaley Eric Gallant: egallant Dr. Chris Harrison: harrisc Dave Henley: dhenley Dr. Helen Isaac: helen.isaac

CREWES— who’s who?

Photos in the newsletter are courtesy of Jessie Arthur, Laura Baird, Kevin Bertram, and Maurice Shevalier

Above: Graduate Students conducting field work near Priddis, Alberta

Volume 25, Issue 1 Page 11

Phone: 403-220-8863

Fax: 403-284-0074

E-mail: crewesinfo@crewes.org

CREWES Project

Department of Geoscience

2500 University Drive NW

Calgary, Alberta T2N 1N4

Come visit us at www.crewes.org

The CREWES Project Staff Members—March 2013

Back Row: (left to right): Kevin Bertram, Kevin Hall, Malcolm Bertram, Vladimir Zubov, John Bancroft, Eric Gallant Front Row (left to right): Laura Baird, Chris Harrison, Joe Wong, Dave Henley, Helen Isaac, Peter Manning

a News

CREWES (The Consortium for Research in Elastic Wave Exploration Seismology) is a dynamic collabo-ration, of academic scientists, their industrial sup-porters and a large body of graduate students, con-ducting research in applied seismology. Research topics include acquisition, data processing, imaging, inversion, and interpretation. CREWES often records its own data, preferably with 3C receivers. Industry sponsors include companies from Canada and around the world

Volume 25, Issue 1 Page 12