Monday, March 30, 2009

Imperial Barrel Award Wrap-up

This past weekend, the UW AAPG Imperial Barrel Award team traveled to Pittsburgh, PA, to compete in the AAPG Eastern Section semi-finals. After eight weeks of work on the data and presentation, the team felt confident of their end product. The competing teams gave their presentations to the judges and overall responses were positive, both for all teams and for Wisconsin's presentation. Even though Wisconsin was a first-time competitor in the IBA competition, the team placed second in the Eastern Section. The competition was a great learning and overall experience, and the UW Student Chapter hopes to field a team in the coming years.

Tuesday, January 13, 2009

A New Semester, A New Challenge

For the spring semester, UW AAPG is embarking upon a new challenge for the club: competing in AAPG's Imperial Barrel Award competition. This is the third year AAPG has held the competition, and the first time UW AAPG is participating. The competition consists of five-member teams from universities around the world interpreting and analyzing a dataset given to them. The teams identify the petroleum systems, generate prospects, and give a presentation with a final "Drill" or "No Drill" recommendation for the basin. The University of Wisconsin is part of the Eastern Section for the competition, which will have its semi-final on March 28th in Pittsburg, PA. The winning team gets the chance to participate in the final round held at the AAPG national convention this June.

We would also like to acknowledge an advance on next year's donation by BP to the club. BP supports several student clubs on campus, and we thank them for their generosity.

Thursday, September 11, 2008

Recruiting Season Begins

Recruiting season is upon us and the UW Student Chapter of AAPG held its annual resume workshop on Sept. 10th in preparation for it. Greg Iaccarino from College of Letters and Science Career Services gave a presentation on resume construction and tips. Additionally, AAPG members offered help and insights to students who brought in their resumes to be reviewed. The CLS Career Services website has an abundance of information on resumes, including helpful hints, what not to do, and examples.

Our first companies arrive on campus next week, are you ready?
The schedule is as follows:

Shell - Sept. 15-17
ConocoPhillips - Sept. 17-19
Chevron - Sept. 22-24
U.S. Minerals Management Service - Sept. 23-24
BP - Sept. 29 - Oct. 1
ExxonMobil - Oct. 1-3

Info sessions for each organization will be held the first date listed above, at 5 pm in the Cline Lounge. Interviews slots are filling up fast, so sign up if you want to interview!

Thursday, August 28, 2008

New Semester, New Opportunities

The officers of UW AAPG Student Chapter for the 2008-2009 are as follows:

PRESIDENT: Andrew Trzaskus (
VICE PRESIDENT: Eric Williams (
SECRETARY: Erik Hoffmann (

We will hold our first meeting at 2pm on September 5th in the Cline Lounge. During the meeting we will elect a secretary, introduce new members, and discuss activities for the year. Please email one of the officers if you are interested in running for secretary. You do not currently have to be a member of AAPG to come to our first meeting, but you will have to sign up as a student member to continue to be involved. Details on this process will be given at the meeting.

On August 27th, President Andrew Trzaskus attended the UW eHub organization's first meeting of the semester. UW AAPG has established a collaborative relationship with eHub and activities involving both clubs were discussed during the meeting. Check them out at

The UW AAPG Student Chapter would also like to thank BP for a very generous donation in support of our organization. The donation will go towards supporting our activities for the upcoming academic year.

Thursday, June 5, 2008

AAPG Links up with UW's eHUB

The AAPG is proud to link up with eHub, a portal for all-things-energy here on the UW campus and beyond. Composed of a diverse array of students (political scientists, nuclear/petroleum/chemical engineers, law students etc.), this club has monthly meetings during which an energy-related topic is discussed. Come meet new people, learn new things, impact how energy issues are percieved by the public... lots of good things can be found at the eHub. Join today (membership is free!) at

Friday, April 25, 2008

GeoBadgers Storm the Alamo at AAPG San Antonio

Thanks to a generous travel grant by Chevron, five GeoBadgers traveled to San Antonio for the 2008 AAPG National Meeting. Pictured below are Tim Pokrop, Tyler Krukas, Peter Garaffo, and Jen Walker as they attend the Wisconsin Alum Reception (Cassidy Miller, not pictured). In addition to networking with fellow GeoBadgers, students took in an array of technical talks and posters, submitted resumes to the Student Job Quest Forum, and partook of the excellent Mexican Food (can't get that in Madison!). All in all, it was an incredibly successful event. We'd like to sincerely acknowledge Chevron and the Department of Geology for facilitating this trip.

Monday, March 10, 2008

Invited Industry Speaker - MARCH 28th!

Ira Pasternack of EnCana Oil and Gas will be on campus March 28th as AAPG's invited Week's Lecturer. Please make time to attend his lecture at 3:30 in room A140 in Weeks Hall. Contact Jen Walker if you would like to schedule an individual conversation with Ira before his talk. His abstract is as follows:


by Ira Pasternack
EnCana Oil and Gas (USA) Inc. and
Dept. of Geology and Geological Engineering, Colorado School of Mines

The USGS recently completed an assessment of Cretaceous tight-gas reservoirs in the Greater Green River Basin (GGRB) of southwestern Wyoming and northwestern Colorado and estimated the mean undiscovered natural gas potential to be about 60 trillion cubic feet of gas. Examples of two Maestrichtian (uppermost Cretaceous) tight-gas reservoirs will be discussed during this presentation, including sandstones within the Lewis Shale and the Lance Formation. Both reservoir examples are characterized by in situ permeabilities that average less than 0.1 millidarcies and initial reservoir pressures that significantly exceeded normal hydrostatic gradient. In contrast, Lewis Shale sandstones typically produce from stratigraphic traps while Lance Formation sandstones produce primarily from structural traps.
Regional stratigraphic analyses indicate that syndepositional tectonics played a major role in influencing lower Lewis Shale sediment dispersal patterns and impacted the distribution of both reservoir and source rocks. Lewis Shale sandstones were deposited in shallow- to offshore-marine (turbidite) environments during the final transgressive-regressive cycle of the Cretaceous Epeiric Seaway. Hay Reservoir Field is discussed in detail because of the availability of the most complete set of modern log and core data from any Lewis field. Production variations at Hay Reservoir are explained by a model that suggests early charging preserved reservoir quality in paleo-structurally high positions, which differ from the present-day structural configuration. The model is applicable to future Lewis Shale field development and exploration programs.
A condensed zone, informally known as the “Asquith Marker,” contains the highest concentration of total organic carbon (TOC, 0.7 to 3.3 weight percent) in the lower part of the Lewis Shale. Core-calibrated gamma-ray logs are used to develop a regional Asquith Marker average TOC map. Thermal maturity of the Asquith Marker (%Ro = 0.5 to 2.3%), is estimated from vitrinite reflectance analyses of carbonaceous shales in the Lewis Shale and coals in associated intervals. Mature organic-rich shales are also found closely associated with the key productive sandstone interval at Hay Reservoir Field.
GGRB Lance Formation production occurs primarily in the Jonah-Pinedale anticline area where active development programs are currently underway. The Lance ranges from about 2,500 to 5,000 feet in gross interval thickness, with fluvial and associated floodplain sandstone reservoirs comprising 20 to 40 percent of the total thickness in the productive areas. Source rocks for the Jonah-Pinedale anticline area production are not well established, but probably include organic-rich lower Lance mudstones.
The discontinuous nature of Jonah sandstone reservoirs, attributable to their fluvial origin and fault compartmentalization, presents a significant challenge to optimizing field development. Better reservoir understanding, evolving fracture-stimulation completion methods and drilling techniques focused on maximum efficiency have all contributed to enhancing Jonah Field economics—the same ingredients that have played critical roles in the successful development of all GGRB Cretaceous tight-gas reservoirs.