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Bulletin Article


Instead of using discrete values for properties that influence the volumetric calculation for recoverable reserves from the Middle Bakken, Pronghorn, and Three Forks reservoir rocks in the Williston Basin in North Dakota, an uncertainty-based assessment method was used. Various estimates have been published in the past that attempt to quantify recoverable reserves from the Bakken petroleum system.

American Association of Petroleum Geologists (AAPG)
Desktop /Portals/0/PackFlashItemImages/WebReady/bltn17181-hero.jpg?width=100&h=100&mode=crop&anchor=middlecenter&quality=75amp;encoder=freeimage&progressive=true 10.1306/1208171621417181 An uncertainty approach to estimate recoverable reserves from the Bakken petroleum system in the North Dakota part of the Williston Basin

Explorer Article


For the second time since 2017, the University of Houston has won the coveted Imperial Barrel Award, an annual AAPG-sponsored prospective basin evaluation competition for geoscience graduate students from universities around the world.

American Association of Petroleum Geologists (AAPG)
Desktop /Portals/0/PackFlashItemImages/WebReady/University-of-Houston-Wins-Imperial-Barrel-Award-First-Place-Honors-hero.jpg?width=100&h=100&mode=crop&anchor=middlecenter&quality=75amp;encoder=freeimage&progressive=true University of Houston Wins Imperial Barrel Award First Place Honors

Explorer Division Column EMD


Buckminster Fuller, the American designer, inventor and visionary said, “We are called to be architects of the future, not its victims.” In the Energy Minerals Division of the AAPG, we hear that calling and embrace it. In our 2019-20 fiscal year, we welcome the return of longtime leaders as well as an influx of new ones to our design team.

American Association of Petroleum Geologists (AAPG)
Desktop /Portals/0/PackFlashItemImages/WebReady/Meet-the-Architects-of-the-Energy-Future-fig1.jpg?width=100&h=100&mode=crop&anchor=middlecenter&quality=75amp;encoder=freeimage&progressive=true Meet the Architects of the Energy Future

Explorer Emphasis


Necessity may be the mother of invention. But sometimes it’s just all the mosquitos. Leila Donn, a doctoral student at the University of Texas at Austin studying environmental geoscience, wasn’t necessarily looking for a computer model to help her find the location of ancient Mayan caves last year. Mostly, she just was hot and tired and the work was going slowly.

American Association of Petroleum Geologists (AAPG)
Desktop /Portals/0/PackFlashItemImages/WebReady/Machine-Learning-Reveals-Hidden-Geology-hero.jpg?width=100&h=100&mode=crop&anchor=middlecenter&quality=75amp;encoder=freeimage&progressive=true Machine Learning Reveals Hidden Geology

Collaboration. Scott Singleton, geophysical technology adviser at Independence Resources Management in Houston, wants to underscore that one word. He believes that if there’s a single ingredient to success in unconventional fields – and the one concept from which those in unconventionals have unfortunately moved away – it’s that geologists, geophysicists and engineers have to work together for the benefit of everyone.

American Association of Petroleum Geologists (AAPG)
Desktop /Portals/0/PackFlashItemImages/WebReady/Integrated-Teams-Are-Crucial-for-Optimizing-Geomechanical-Models-hero.jpg?width=100&h=100&mode=crop&anchor=middlecenter&quality=75amp;encoder=freeimage&progressive=true Integrated Teams Are Crucial for Optimizing Geomechanical Models

A seismic acquisition project that would have taken years not too long ago can now be accomplished in months, thanks to “selective hearing” and other recent advances.

American Association of Petroleum Geologists (AAPG)
Desktop /Portals/0/PackFlashItemImages/WebReady/Cocktail-Party-Effect-Speeds-Up-Seismic-Acquisition-hero.jpg?width=100&h=100&mode=crop&anchor=middlecenter&quality=75amp;encoder=freeimage&progressive=true 'Cocktail Party Effect' Speeds Up Seismic Acquisition

Explorer President’s Column


While traveling to various events this summer, I have heard comments that members are glad to see some of the Executive Committee at these events, but wonder why more of the Executive Committee are not present. In years past, the Executive Committee would attend most of the sectional meetings along with the International Conference and Exhibition and Annual Convention and Exhibition.

American Association of Petroleum Geologists (AAPG)
Desktop /Portals/0/PackFlashItemImages/WebReady/Make-Your-Life-a-Diamond-hero.jpg?width=100&h=100&mode=crop&anchor=middlecenter&quality=75amp;encoder=freeimage&progressive=true Make Your Life a Diamond

At the recent URTeC conference, I gave a luncheon talk about the importance of the geology within the Permian Basin as it relates to the unconventional and horizontal plays within the basin. As we move into the “mining stage,” one tends to forget that these plays exist because of the geology. Technology allows us to get the oil out, but the geology put the oil in.

American Association of Petroleum Geologists (AAPG)
Desktop /Portals/0/PackFlashItemImages/WebReady/The-Importance-of-Geology-hero.jpg?width=100&h=100&mode=crop&anchor=middlecenter&quality=75amp;encoder=freeimage&progressive=true The Importance of Geology

Explorer ProTracks


The Unconventional Resources Technology Conference was held this year in Denver, Colo., and once again, it did not disappoint. It was packed with technical presentations and exhibits and it continued to push boundaries and remain as the premier industry event focused on the latest science and technology in exploration and development of unconventional resources.

American Association of Petroleum Geologists (AAPG)
Desktop /Portals/0/PackFlashItemImages/WebReady/Have-You-Attended-URTeC-hero.jpg?width=100&h=100&mode=crop&anchor=middlecenter&quality=75amp;encoder=freeimage&progressive=true Have You Attended URTeC?

Search and Discovery Article


A collection of more than 50 abstracts for papers concerning 3D structural Geologic Interpretation. Abstracts of papers presented at the AAPG Hedberg Conference in Reno, NV in June, 2013.

American Association of Petroleum Geologists (AAPG)
Desktop /Portals/0/PackFlashItemImages/WebReady/sd-art-3d-structural-geologic-interpretation-hero.jpg?width=100&h=100&mode=crop&anchor=middlecenter&quality=75amp;encoder=freeimage&progressive=true 3D Structural Geologic Interpretation: Earth, Mind, and Machine - Hedberg Abstract Collection

Denver Colorado United States 14 March, 2020 14 March, 2020 55399
Denver Colorado United States 17 March, 2020 17 March, 2020 54657
Denver, Colorado, United States
17 March 2020

This is the 26th annual 3D Seismic Symposium (3DSS) hosted by the Denver Geophysical Society (DGS). The 3DSS gathers geologists, geophysicists and engineers for talks on the use, application and integration of seismic data for exploration and development; application of data integration between disciplines, technology advancements and case studies.

Event Host: Denver Geophysical Society

Contact:Brad Birkelo 2020 3D Seismic Symposium Chair and Sarah Gach 3D Seismic Symposium Advertising - (303) 824-5451 (office)

Houston Texas United States 06 June, 2020 06 June, 2020 54205
Houston, Texas, United States
6 June 2020

Grand Junction Colorado United States 13 September, 2020 16 September, 2020 53980
Grand Junction, Colorado, United States
13-16 September 2020

Join us for the 2020 Rocky Mountain Section Meeting, September 13-16, 2020 at the Two Rivers Convention Center, Grand Junction, Colorado. General Chairs are Kim Gerhardt (Four Corners) and Heidi Schoenstein (Grand Junction).


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Heidi E. Schoenstein Heidi E. Schoenstein President (2019-2020) part-time contract (970) 623-3356
Lynette D. W. George Lynette D. W. George Past President (2019-2020) Consulting Geologist (307) 265-6338
Peter David Bucknam Peter David Bucknam President Elect (2019-2020) Petro-Hunt LLC (303) 573-4161
Timothy Olaf Nesheim Timothy Olaf Nesheim Secretary Treasurer Elect (2019-2020) ND Geological Survey 701-777-2460
Anna Sheldon Phelps Anna Sheldon Phelps Secretary Treasurer (2019-2020) SM Energy (303) 837-2484
Natasha Marie Rigg Natasha Marie Rigg Advisory Counselor (2018-2021) (303) 837-2495

The House of Delegates of the AAPG is made up of delegates from affiliated societies and international regions throughout the world. They are selected by popular vote from within their respective areas and serve a three year term.

Who Is My Delegate?

NOTE: Membership in an affiliated society does not necessarily constitute membership in the AAPG and vice versa.

Learn more about affiliated societies of the AAPG

States in the Section