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Oil Has Plunged Below $100 as Recession Fears Spike. This Is What Happens Next - 07 July, 2022 07:30 AM

Gas Prices Continue to Drop—Here’s How Far They May Fall as Oil Prices Crater - 07 July, 2022 07:30 AM

Iran Follows Russia's Lead, Selling Oil at Discount - 07 July, 2022 07:30 AM

Oil Falls Below $100 per Barrel for First Time Since May - 06 July, 2022 07:30 AM

Oil from U.S. Reserves Head Overseas as Gas Prices Stay High - 06 July, 2022 07:30 AM

07 Oct

2nd Edition: Integrated Emerging Exploration Concepts: Challenges, Future Trends and Opportunities - Call For Poster Abstracts Expires in 92 days

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Bulletin Article

Field excursion: Petroleum traps and structures along the San Andreas convergent strike-slip plate boundary, California

Fault-related fold models that illustrate the geometry and kinematic development of petroleum traps and structures are frequently used to assist basin exploration and development of structurally complex oil fields. Worldwide, several petroleum-rich provinces are situated in convergent strike-slip settings with adjacent convergent structures that are commonly petroleum traps.

Added on 27 March, 2017

Events Blog By Grant Smith

ACE 2017 Registration Scholarships Available for Displaced Energy Professionals

A limited number of scholarships for ACE 2017 registration are now available to displaced geoscientists and energy professionals. Eligible applicants will pay just 50% of the standard rate for the full convention, including all technical sessions, networking events and the exhibition. Find out more!

Added on 20 March, 2017

Events Blog By Grant Smith

Can't Make it to ACE? Get Your Brand Noticed With 2017 Sponsorships!

Secure your sponsorships now for ACE 2017 and choose the mix of items, events and activities that align with the specific marketing goals of your business.

Added on 23 February, 2017

Bulletin Article

In situ stress variations associated with regional changes in tectonic setting, northeastern Brooks Range and eastern North Slope of Alaska

The northeastern Brooks Range of northern Alaska is an active, north-directed fold-and-thrust belt that is advancing on the Barrow arch and the north-facing passive margin of the Arctic Basin. Density logs, leak-off tests, and mud-weight profiles from 57 wells from the northeastern North Slope were used to determine the magnitude of the present-day in situ stresses and document significant regional lateral and vertical variations in relative stress magnitude.

Added on 23 February, 2017

Events Blog By Grant Smith

Fuel Your Future by Exhibiting and Sponsoring ACE 2018

ACE 2018 marks the 101st year of AAPG. See how your brand benefits from exhibiting and/or sponsoring ACE Salt Lake City.

Added on 10 January, 2017

Explorer Emphasis Article By Heather Saucier

Alaska's North Slope Heats Up

The recent and apparently large oil discoveries on Alaska’s North Slope by Caelus Energy Alaska and Armstrong Oil & Gas, Inc. and its partner Repsol have shown the world that giants may still exist in the 49th state. And, more might be waiting to be found.

Added on 01 January, 2017

Explorer Emphasis Article By David Brown

Year of Discovery Sees 'Dim Bright Spots'

By one measure, 2016 shaped up to be the worst time for international oil and gas discoveries in years. By another, last year looks like the worst for international oil additions in decades.

Added on 01 January, 2017

Explorer Foundation Update By Tamra Campbell

Honoring a Trustee and Exploring Hawaii

Trustee Emeritus Paul Strunk was recently presented with the L. Austin Weeks Memorial Medal. In addition, the Trustee Associates 39th annual meeting was held in October in Hawaii.

Added on 01 December, 2016

Events Blog By Grant Smith

Custom Centennial Sponsorship Packages Available for ACE 2017

Be a Part of History and Celebrate AAPG's 100th Anniversary with a Centennial Sponsorship Package!

Added on 01 December, 2016

Explorer President’s Column By Paul Britt

Innovation and the Future of Geoscience

How is future innovation going to affect the geoscience career? What are some of the potential new innovations that we can see today?

Added on 01 November, 2016

VG Abstract By Sherilyn Williams-Stroud

A Brief History of Hydraulic Fracturing and Induced Seismicity

Hydraulic fracturing has been around for decades. This talk describes some of the first applications of the technology, how it developed over time, and our current understanding of its impacts with some discussion of both water and earthquake hazards.

Request a visit from Sherilyn Williams-Stroud!

Added on 16 November, 2016

VG Abstract By Noelle Joy Purcell

Confounding Carbonates: The Reservoir Rocks that Won't Play Nice

This lecture will discuss the differences between carbonates and siliciclastics from their chemical composition through their distributions in time and space. Building on these fundamental differences, we will explore the challenges carbonates pose to petroleum geologists in terms of seismic interpretation, reservoir quality prediction, field development, etc. Peppered with humorous personal stories, still raging academic debates, and the heartfelt frustrations of real industry professionals, the aim is to inspire students and young professionals to rise to the occasion and embrace the reservoir rocks that petroleum geologists love to hate.

Request a visit from Noelle Joy Purcell!

Added on 17 March, 2015

VG Abstract By Sherilyn Williams-Stroud

Fracture Mechanics Interpreted from Stress Inversion Analysis on Microseismic Event Source Mechanisms in the Marcellus Shale

Analysis of microseismicity induced by hydraulic fracture stimulation in the Marcellus Shale shows changes in stress state for different zones of failure. During the treatment, shear failure occurs on both the J1 and J2 fracture orientations in response to different maximum stress orientations, indicating localized changes in the orientation during the treatment. Reactivation of a fault near the wellbore is associated with failure mechanisms with a higher volumetric component, indicating possible inflation of faults and fractures by the introduction of the slurry. Quantification of the stress conditions that are associated with inflation could potentially be used to optimize the stimulation by identifying which fractures will preferentially take on slurry volume.

Request a visit from Sherilyn Williams-Stroud!

Added on 16 November, 2016

VG Abstract By Sherilyn Williams-Stroud

Induced Hydraulic Fractures or Reactivated Natural Fractures?

Microseismicity induced by hydraulic fracture stimulation of a horizontal well was mapped with a near-surface buried array. Distinct linear trends of events were not parallel to the direction of fast shear wave polarization measured in the reservoir with a crossed-dipole anisotropy tool. Analysis of core from a nearby well revealed numerous calcite-filled fractures that did not induce shear wave polarization, but did significantly impact the failure behavior of the reservoir rock during the stimulation treatment. Hydraulic fracture simulation with DFN modeling and source mechanism analysis supports the interpretation of reactivated existing fractures rather than the formation of hydraulically-induced tensile fractures.

Request a visit from Sherilyn Williams-Stroud!

Added on 16 November, 2016

Stephen Anthony Reid Editor-in-Chief (2021-2023) (661) 303-7817

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.

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