May 2006 - The Southeastern Geophysical Society
May 2006 - The Southeastern Geophysical Society
May 2006 - The Southeastern Geophysical Society
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<strong>May</strong><br />
Luncheon<br />
Thursday<br />
<strong>May</strong> 11, <strong>2006</strong><br />
11:15 AM – 1:00 PM<br />
<strong>The</strong> Holiday Inn<br />
330 Loyola<br />
New Orleans, LA<br />
Menu<br />
Buffet<br />
This Month’s Sponsor<br />
Chevron<br />
RSVP<br />
Steve Espinosa<br />
(504) 250-4851 or<br />
steve.espinosa@bakeratlas.com<br />
By <strong>May</strong> 8th, 10:00AM<br />
Inside This<br />
Issue<br />
President’s Corner……….……...3<br />
SGA News………………………..6<br />
Membership Application.…....... 8<br />
2 nd Vice-President’s Corner........9<br />
<strong>May</strong> <strong>2006</strong><br />
Web address: www.sgs-neworleans.org<br />
reflections<br />
<strong>May</strong> Luncheon Presentation<br />
USES, ABUSES, AND EXAMPLES OF SEISMIC-DERIVED ACOUSTIC IMPEDANCE DATA:<br />
WHAT DOES THE INTERPRETER NEED TO KNOW? REBECCA LATIMER<br />
Throughout the years there has been a concerted effort to integrate the geoscience disciplines<br />
to become more adept at understanding the potential of an area. In the 1980s, geophysicists<br />
interpreted 2D seismic data by overlaying log data on paper seismic sections and using<br />
generalized depth-to-time curves to determine which events represented markers on the logs.<br />
Geologists interpreted cross-sections by drawing straight lines between wells to represent their<br />
correlations. Because technology advances have changed the process, many people today have<br />
become “interpreters” of 2D or 3D data on workstations where the log data, seismic data, and<br />
many derivations of the seismic data (attributes, coherence, P impedance, inversions, elastic<br />
impedance, lambda rho, etc.) are available to fine-tune the analysis process. <strong>The</strong> question,<br />
however, still remains: Are we integrating the data yet?<br />
Inversion of seismic data into acoustic impedance provides a natural tie to the log impedance<br />
data and forces the geoscientist, in analyzing seismic data, to extract appropriate wavelets,<br />
determine the phase and amplitude of the data, determine whether or not the phase is stable<br />
throughout the volume, and very intimately tie the well log impedance data to the seismic<br />
data. Utilizing inverted data at the beginning of the interpretation process requires that the<br />
geoscientist understand the rock properties in their target area before embarking on an<br />
“attribute” interpretation. Even when the P impedance data do not clearly distinguish between<br />
fluids or lithologies, value is added by using these data as the first interpretation tool. <strong>The</strong><br />
simplicity in knowing that the change of values. represents a change in rock properties without<br />
the complexity of wavelet variability is a distinct advantage to the interpreter. This initial<br />
process is critical to undertaking any interpretation of seismic data. Seismic data, being an<br />
interface property, contain tuning, side lobe effects, and phase and frequency variability,<br />
making it difficult to directly determine the geology. Inverted data, a layer property, are a<br />
more intuitive geologic tool that allows interpreters to utilize their natural ability to “see” the<br />
geology in the seismic data.<br />
Today, advanced impedance tools use angle stack data and shear log components that can aid<br />
in distinguishing between lithologies and hydrocarbon properties. <strong>The</strong>se data combine the<br />
benefits of angle data, AVO, and rock properties which—when analyzed together with the<br />
understanding of the depositional environments, stratigraphic concepts and the myriad of<br />
seismic attributes—can greatly increase the interpretative ability of the geoscientist.<br />
This presentation will demonstrate the necessity for inversion and explain why it is beneficial<br />
in an interpretation workflow. It will examine both the strengths and drawbacks of using<br />
inverted data as compared with the seismic data and the original rock data. It will also show<br />
the following: how scale differences between various data types can effect the results, how the<br />
interpreter analyzes the rock properties and utilizes these with inverted data and, how to spot<br />
pitfalls in the overuse of impedance data.
Speaker’s Biography<br />
Education:<br />
1980 Boston College, MS Geology<br />
1974 Framingham State College, MA B.Sc Math, Earth Science, Education<br />
Experience:<br />
1980-1995 Amoco Production Company; USA, Geophysicist, Sequence<br />
Stratigrapher<br />
1991-1992 Enterprise Oil Company; Stavanger Norway, Sequence<br />
Stratigrapher, Interpreter<br />
1995-1996 Consultant<br />
1996-2000 Jason Geosystems, Inversion technology application & Chief<br />
Geoscientist, Houston TX<br />
2000-Present Texaco, ChevronTexaco, Chevron Geoscientist & Team Leader for Stratigraphy and<br />
Geostatistics Services in Chevron’s ETC<br />
Professional Interests:<br />
<strong>The</strong> evolution of seismic stratigraphy into seismic sequence stratigraphy over the years has necessitated a<br />
close tie between seismic data and log and core geological data. <strong>The</strong> scale differences, between these data,<br />
the quality variability and the analysis of phase, frequency and anisotropy of the seismic data complicate<br />
the process. <strong>The</strong>re is a natural link between inverted seismic data and seismic sequence stratigraphic<br />
analysis but often these two disciplines are analyzed separately. When properly inverted and analyzed, the<br />
seismic data can yield rock properties, minimize the wavelet effects and allow for a more straight forward<br />
medium for interpretation. My interests, as a geologist and a geophysicist, lie in the integration of seismic<br />
data, inversion, rock properties, and well data into the sequence stratigraphic process as well as the<br />
quantification of the uncertainty inherent in interpretation of these data.<br />
Publications & Awards:<br />
From 2002 to Present: Editor Leading Edge, Interpreter’s Corner<br />
Authored and Co-authored numerous publications internal to Amoco and Chevron and external in SEG,<br />
AAPG and HGS<br />
Memberships:<br />
American Association of Petroleum Geologists, <strong>Society</strong> of Exploration<br />
Geophysicists, Houston Geological <strong>Society</strong>, <strong>Geophysical</strong> <strong>Society</strong> of Houston,<br />
Licensed Geoscientist: Texas, Certified Petroleum Geophysicist: AAPG<br />
ALBERT P. BROWN,<br />
P.G.<br />
<strong>Geophysical</strong><br />
Consultant<br />
Texas Board Certified Licensed Professional Geoscientist
President’s Corner by Richard Mongan<br />
I was out in the yard over the<br />
weekend trimming back the Crepe<br />
Myrtles in readiness for spring and it<br />
seems fitting to draw a parallel that<br />
the emergence of flora and fauna<br />
and new life is just like what’s<br />
happening downtown with the rebirth<br />
and renewal of our city. <strong>The</strong>re are<br />
signs all around us with companies<br />
and their personnel returning,<br />
buildings and structures being put<br />
back together and finally some of the<br />
trash and debris being tidied up. We<br />
can each do our little bit and the<br />
overall effect will be that life can<br />
once again blossom as normal. As<br />
far as the <strong>Southeastern</strong> <strong>Geophysical</strong><br />
<strong>Society</strong> goes it was really<br />
encouraging to see so many people<br />
at our first technical luncheon of the<br />
year at the Holiday Inn, February 9 th .<br />
What a great time we all had<br />
listening to one of our own, Dr.<br />
Juliette Ioup, giving a fun and<br />
interesting talk which prompted an<br />
unprecedented number of questions.<br />
<strong>The</strong> most I can remember for a while<br />
anyway.<br />
<strong>The</strong> SGS needs people to participate<br />
so that it is nurtured and thrives in<br />
the future and the time is already<br />
upon us to start forming next year’s<br />
executive committee. By serving on<br />
the EC, you have an opportunity to<br />
meet and work with many<br />
outstanding local Geoscientists and<br />
by working with the EC, you are able<br />
to strengthen the technical and<br />
personal interaction among the<br />
membership, providing a more<br />
vibrant geophysical community. It’s<br />
a great service, very rewarding, and<br />
doesn’t take an inordinate amount of<br />
your time. I do hope you will contact<br />
one of the current board to volunteer<br />
your time and energy…otherwise, as<br />
true energy finders, we’ll find a way<br />
to volunteer you!<br />
At our March 9 th Technical<br />
Luncheon, another of our own,<br />
Rocky Detomo, is presenting,<br />
“Quantitative Integrated Evaluation<br />
with Explicit Large Scale Shared<br />
Earth Models for Ursa Field”. I’m<br />
looking forward to Rocky’s talk and<br />
hope you can find the time to be<br />
there too. As will be the norm this<br />
year, it’s at the Holiday Inn on<br />
Loyola, 11:30am. Hopefully some of<br />
the teething troubles we had last<br />
month should be ironed out a little bit<br />
better i.e. a bar, and it should be<br />
held in one of the rooms downstairs<br />
behind the Streetcar Restaurant.<br />
Rocky is also the Technical Program<br />
Director for the 76 th Annual SEG<br />
Meeting in October. <strong>The</strong> steering<br />
committee met in Houston February<br />
22 nd to begin the technical paper<br />
selection process. <strong>The</strong> call for<br />
papers is ongoing with a deadline to<br />
submit an abstract of April 12, <strong>2006</strong><br />
5pm Central Daylight Time. More<br />
details can be found on the SEG<br />
website www.seg.org.<br />
Spring is also the time for our Annual<br />
Golf Scholarship Fundraiser at<br />
Money Hill Golf & Country Club.<br />
Steve Espinosa has more details in
his column but as usual it is<br />
scheduled around the Gulf of Mexico<br />
Lease Sale. <strong>The</strong> proceeds are used<br />
for the five scholarships the SGS<br />
gives. Two of the awards, <strong>The</strong> Bill<br />
Blair Memorial Scholarships ($1,500<br />
each), are given to High School<br />
Seniors planning to attend college,<br />
those already at college or graduate<br />
students. <strong>The</strong> other very important<br />
qualifier for this award is that the<br />
student is a son/grandson or<br />
daughter/granddaughter of a current<br />
SGS member. <strong>The</strong>re are also<br />
another three University Awards<br />
($750) given through the local<br />
universities to an outstanding Earth<br />
Science scholar. <strong>The</strong> deadline for<br />
applications is April 14. <strong>The</strong> forms<br />
can be found on the website or<br />
contact me directly and I can get<br />
something mailed or e-mailed to you.<br />
Scholarships are distributed at the<br />
<strong>May</strong> luncheon.<br />
We are still in negotiation regarding<br />
a venue and a date for Rodney<br />
Calvert’s DISC, “Insights and<br />
Methods for 4D Reservoir<br />
Characterization”. <strong>The</strong> Shell Annex<br />
was booked for our proposed date<br />
Volunteer to work at SEG's 76th Annual Meeting in New<br />
Orleans. Opportunities abound as you choose from being a<br />
session monitor, to stuffing delegate bags, to working with New<br />
Orleans area students. Register early online to insure best<br />
timeslots and opportunities!<br />
http://meeting.seg.org/volunteer/<br />
April 27 and we have investigated<br />
other dates and locations to host this<br />
course the last week of April/first<br />
week of <strong>May</strong>. <strong>The</strong> website www.sgsneworleans.org<br />
should have the<br />
most up to date details, an<br />
application form etc. It promises to<br />
be a tremendous learning<br />
opportunity. <strong>The</strong> SEG hope to use<br />
the event as a springboard to<br />
increase awareness of the 76 th<br />
Annual SEG Meeting to be held in<br />
New Orleans later in the year.<br />
Around 100 local volunteers are<br />
needed to help out on various<br />
committees both organizing affairs<br />
ahead of the convention and while it<br />
runs. Some already have been<br />
coerced into donating their time and I<br />
thank them for that. If somebody<br />
comes and asks you to help please<br />
try to find the time necessary to offer<br />
your services.<br />
Once again, I thank you for your<br />
support, I look forward to meeting<br />
and catching up with you either at<br />
the luncheon on March 9 th or the<br />
Golf Fundraiser on March 16 th .<br />
Richard
GPI continues to expand our 3-D database in the Gulf<br />
Coast to include onshore, state waters, along with Federal<br />
shelf and deep water Gulf of Mexico.<br />
Larry Galloway<br />
Phone: 985-727-6720<br />
Email: larry@geopursuit.com<br />
Web: www.geopursuit.com<br />
NEW ORLEANS . 985-727-6720 . 2895 Highway 190, Suite 227 . Mandeville, LA 70471<br />
HOUSTON . 713-529-3000 . 3501 Allen Parkway . Houston, TX 77019<br />
March Madness Lunch<br />
SGA NEWS<br />
Chairperson for April Luncheon
<strong>2006</strong>-2007 SGA Officers<br />
President Rosemary Austin, Vice President Glenda Evans,<br />
Secretary Claudia Marquis, Treasurer Claire LaPointe<br />
<strong>Southeastern</strong> <strong>Geophysical</strong> <strong>Society</strong> Reflections <strong>May</strong> <strong>2006</strong> 7
<strong>Southeastern</strong> <strong>Geophysical</strong> <strong>Society</strong> Reflections <strong>May</strong> <strong>2006</strong> 8
2 nd Vice President’s Corner by Steve Espinosa<br />
Well the SGS year is almost over. It’s been a<br />
difficult year to say the least. But despite the<br />
abbreviated time that we’ve had I believe it’s<br />
made our society a stronger one. We<br />
overcame the odds and were able to mobilize<br />
and organize a respectable <strong>2006</strong> program.<br />
<strong>The</strong> luncheons have been a success, the golf<br />
tournament enjoyed, and the DISC a great<br />
learning experience. I’ve enjoyed it all and<br />
have especially enjoyed being 2 nd Vice<br />
President for this great society. Thank you for<br />
giving me the opportunity to serve.<br />
Our last luncheon of the year will be held <strong>May</strong><br />
11 th , <strong>2006</strong>. <strong>The</strong> speaker this month is<br />
Rebecca Latimer. Rebecca is a geoscientist<br />
and team leader for stratigraphy and<br />
geostatitics in Chevron’s ETC. <strong>The</strong> title of her<br />
talk will be “Uses, Abuses, and Examples of<br />
Seismic-derived Acoustic Impedance Data:<br />
What Does the Interpreter Need to Know?” In<br />
addition we will be announcing the new<br />
officers for <strong>2006</strong> – 2007 and presenting our<br />
scholarships to worthy high school seniors<br />
and college students. I hope that you will<br />
make it a point to attend this luncheon to<br />
support your newly elected officers and<br />
congratulate our scholarship recipients.<br />
Again, it’s been a pleasure to be your 2 nd VP.<br />
As for me it looks like I’ll be moving on as well.<br />
An overseas assignment calls, this time<br />
Lagos, Nigeria. I will be managing Baker<br />
Atlas’s interest in Nigeria. At this time it looks<br />
like I will be leaving mid-July. However we all<br />
know how small the oil field is. I’m sure at<br />
some point I’ll be meeting up with you again.<br />
Thanks and I’ll see you <strong>May</strong> 11 th .<br />
Steve<br />
935 Gravier Street<br />
New Orleans, LA 70112<br />
(504) 592-6000<br />
<strong>Southeastern</strong> <strong>Geophysical</strong> <strong>Society</strong> Reflections <strong>May</strong> <strong>2006</strong> 9
<strong>Southeastern</strong> <strong>Geophysical</strong> <strong>Society</strong> Reflections <strong>May</strong> <strong>2006</strong> 10
<strong>Southeastern</strong> <strong>Geophysical</strong> <strong>Society</strong> Reflections <strong>May</strong> <strong>2006</strong> 11
<strong>Southeastern</strong> <strong>Geophysical</strong> <strong>Society</strong> Reflections <strong>May</strong> <strong>2006</strong> 12
<strong>Southeastern</strong> <strong>Geophysical</strong> <strong>Society</strong> Reflections <strong>May</strong> <strong>2006</strong> 13
<strong>Southeastern</strong> <strong>Geophysical</strong> <strong>Society</strong> Reflections <strong>May</strong> <strong>2006</strong> 14
<strong>Southeastern</strong> <strong>Geophysical</strong> <strong>Society</strong> Reflections <strong>May</strong> <strong>2006</strong> 15
Advertiser Index<br />
Fugro Airborne Surveys………….……..2<br />
Al Brown……………………………..……2<br />
CGG……………………….………….…. 5<br />
<strong>Geophysical</strong> Pursuit Inc..............…........6<br />
Chevron ………….…………………..…..8<br />
WesternGeco…...…….……..….…….....9<br />
Baker Atlas……………….……….…….11<br />
Seismic Exchange Inc…….……….…. 12<br />
Shell ………………………….………....12<br />
Schlumberger ……………………..….. 13<br />
PGS Onshore ……………………..…...14<br />
TGS NOPEC…………………….…...…15<br />
S.G.S. Executive Committee<br />
P. O. Box 57141<br />
New Orleans, LA 70157<br />
Web address: www.sgs-neworleans.org<br />
SGS Officers SGS Company Representatives 2005-06<br />
PRESIDENT – Richard A. Mongan<br />
Baker Atlas ……………………………….……..….… (504) 561-7915<br />
Richard.Mongan@bakeratlas.com<br />
1st VICE PRESIDENT – Gale Jenkins<br />
Shell Expl. & Prod. Co …………………….……….... (504) 728-3589<br />
gale_jenkins@shell.com<br />
2nd VICE PRESIDENT – Steve Espinosa<br />
Baker Atlas…………………….…………………...…. (504) 592-5104<br />
steve.espinosa@bakeratlas.com<br />
SECRETARY – Barb Kelty<br />
WesternGeco…….……………….…………………… (504) 592-5110<br />
bkelty@slb.com<br />
TREASURER - Dee Smith<br />
Minerals Management Service……………………….(504) 736-2706<br />
dee.smith@mms.gov<br />
EDITOR – Ellen Clark<br />
Chevron……….……………………………..………… (504) 246-7327<br />
clarkef@chevron.com<br />
PAST PRESIDENT – Warren A. Mautz<br />
Shell Expl &Prod Co ……...……………….……….... (504) 728-6292<br />
warren.mautz@shell.com<br />
PRIOR PAST PRESIDENT – Robert Shank<br />
Chevron………..…………………………….……….…(823) 854-3624<br />
shnk@chevron.com<br />
SGA Officers<br />
President- Rosemary Austin …………….……...…..... (504) 737-9697<br />
Vice President – Glenda Evans<br />
Secretary – Jean Keese<br />
Treasurer – Ruth Hughson<br />
Richard Mongan – BakerAtlas (504) 561-7915 Richard.Mongan@bakeratlas.com<br />
Richard Fossier – CGG (985) 924-3027 rfossier@cgg.com<br />
David Moore - Chevron (504) 592-6047 mode@chevron.com<br />
Jesse Yoste – Dominion (504) 593-7382 j_yoste@dom.com<br />
Jim Harley – Eagle <strong>Geophysical</strong> (281) 342-1198 jimharley@yahoo.com<br />
Sherwin Eskew – Energy Partners (504) 799-4811 seskew@eplweb.com<br />
Jeff Rowe – Fugro Airborne Surveys (713) 369-6121 jrowe@fugro.com<br />
Brian Anderson – Fugro-LCT (713) 369-6100 banderson@fugro.com<br />
Julie Pechacek – Fugro (713) 369-6061 jpechacek@fugro.com<br />
Larry Galloway – GPS (985) 727-6720 larry@geopursuit.com<br />
Karen Sontag – GXT (713) 789-7250 ksontag@gxt.com<br />
Steve Dennis – Halliburton (281) 988-2146 Steve.Dennis@Halliburton.com<br />
Maureen Nickle – Kelman Tech (281) 293-0537 maureen@kelman.com<br />
Laurie Anderson – LSU (225) 578-2153 laurie@geol.lsu.edu<br />
Peter Gaurisco– MMS (504) 736-2706 peter.guarisco@mms.gov<br />
David Wade – Murphy E&P 504) 561-2324 ssoniat@murphyexpro.net<br />
Larry Asher – PGS (281) 589-8829 larry.asher@pgs.com<br />
Sandra Beaty – PGS (713) 706-0581 sandra.beaty@pgs.com<br />
David Gillis – Schlumberger (504) 592-5360 gillis1@new-orleans.oilfield.slb.com<br />
Layne Williams – SEI (504) 581-7153 lwilliams@seismicexchange.com<br />
Sarah Stanley – Seismic MicroTech (713) 464-6188 sstanley@seismicmicro.com<br />
Derek Farris – Siemens (504) 728-0156 dafarris@shell.com<br />
Jim McCarty – Taylor Energy (504) 589-0577 jmccarty@taylorenergy.com<br />
Michelle Pou – TGS NOPEC (713) 860-2115 mpou@tgsnopec.com<br />
Juliette Ioup – UNO (504) 280-6715 jioup@uno.edu<br />
Jerry Young – Veritas DGC (832) 351-8695 jerry_young@veritasdgc.com<br />
Diana Lenzner – WesternGeco (504) 592-5103 DLenzner@neworleans.westerngeco.slb.com<br />
<strong>Southeastern</strong> <strong>Geophysical</strong> <strong>Society</strong> Reflections <strong>May</strong> <strong>2006</strong> 16
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