Explorer Article

Just as Alaska was bracing itself for the economic fallout of the Biden administration’s adversarial stance on oil and gas, two recent court decisions are giving the state hope. On June 15, a federal judge lifted the administration’s temporary ban on federal lease sales, clearing the way for a highly anticipated lease sale in the prolific National Petroleum Reserve – Alaska. And, on May 26, a brief filed by the U.S. Department of Justice affirmed that the Willow Project, a major discovery in NPRA that has been tied up in environmental-related lawsuits, complies with environmental regulations. While it remains unclear how soon the NPRA lease sale can take place, it is expected that the Willow project, one of the North Slope’s largest projects in recent years, will move forward.

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American Association of Petroleum Geologists (AAPG)
American Association of Petroleum Geologists (AAPG)
Explorer Historical Highlights

The Los Angeles Times once called William Rintoul “one of the West’s most unusual writers.” Oil field journalists are indeed rare and are becoming even rarer. Nevertheless, their contributions are not to be ignored. Petroleum history is a chronicle of the largest industry that has shaped the modern world for the past 150 years or so. There have been many authors of the history of the oil and gas industry, but William Rintoul was different. It is impossible to decouple California’s petroleum history from Rintoul’s legacy.

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American Association of Petroleum Geologists (AAPG)
Explorer Foundation Update

Thomas E. Hopps was a lifelong Californian who loved geology, loved working the Ventura Basin and other complex state structures and loved, especially, doing what he could to help others. And now that legacy of helping others is about to add a new chapter: A new AAPG Foundation Named Grant-in-Aid is being funded in his name.

American Association of Petroleum Geologists (AAPG)
Learn! Blog

A trip to Yellowstone as a child inspired Zane Jobe to become a geologist. Join Zane as he shares his story and his favorite outcrops.

American Association of Petroleum Geologists (AAPG)
American Association of Petroleum Geologists (AAPG)
Explorer Division Column DEG

The environment is in your face this year. Here in Los Angeles, we had one of the clearest springs that I can remember. All because the COVID-19 virus resulted in a huge shutdown of most everything that took us outdoors. Come summer and the fires struck the western states. The air turned brown and the visibility went to nearly zero. It stayed that way all the way to summer’s end. This was a huge wakeup call on how sensitive the atmosphere is to changes brought about by aerosols. This brings to mind a story about the biggest tourist attraction in the greater Los Angeles area in the late 19th and early 20th century.

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American Association of Petroleum Geologists (AAPG)
Learn! Blog

Welcome to a new series in the AAPG Learn! Blog entitled “My Favorite Outcrop.” In this series, we chat with geoscientists who tell us about their favorite outcrops encountered during their work in the field. Today we meet with Clara Abu, who is one of the founding members of the Salt Basins Technical Interest Group. One of her favorite outcrops was in Tusher Canyon, Utah, featured in the photo.

American Association of Petroleum Geologists (AAPG)
Explorer Article

In the business of oil and gas exploration, it’s all about managing risk. Companies are more likely to drill where there are strong indications of hydrocarbons from field and seismic data, nearby wells and discoveries – and preferably, all of the above. So, when the federal government officially opens the doors in the near future to the Coastal Plain of the Arctic National Wildlife Refuge for commercial drilling, it could be like watching a game of poker.

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American Association of Petroleum Geologists (AAPG)
Explorer Article

Since the 1968 discovery of Prudhoe Bay, North America’s largest conventional oilfield, operators have been drawn to Alaska’s remote and mysterious North Slope in search of other giants. The discovery of the Alpine Field in 1994 fueled interest in stratigraphic traps, and the region continues to yield significant discoveries, such as the 2013 Pikka Field, just east of the National Petroleum Reserve – Alaska. Considering all the territory that stretches north of the Brooks Range, one area –the Arctic National Wildlife Refuge – has remained off-limits to exploration since its creation in the 1980 Alaska National Interest Lands Conservation Act. Despite decades of heated debate between the industry and environmentalists on whether to allow exploration of the area – which is widely believed to be rich in hydrocarbons and a major step toward energy independence – it has remained closed. Until now.

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American Association of Petroleum Geologists (AAPG)
Short Course
Virtual Short Course
Friday, 1 October 2021, 8:30 a.m.–12:00 p.m.

Implementing carbon capture, usage, and storage (CCUS) projects at large scales is becoming a growing subject of interest for the geophysics community. This workshop will present what is already achievable but also the unknown and specificities that the geophysical community will face in the future. Technical presentations will serve as an opening for discussion between the audience and the invited speakers.

American Association of Petroleum Geologists (AAPG)
Short Course
Virtual Short Course
Friday, 1 October 2021, 8:30 a.m.–12:00 p.m.

The Gravity and Magnetics Committee jointly with the Near Surface Technical Section and the Mining Committee call for papers for a workshop scheduled for two half-days and focusing on magnetic methods in memory of a potential-field pioneer, Afif Saad. Workshop organizers welcome contributions from academia, industry, and government organizations that emphasize various applications of the magnetic method to a wide range of scientific and applied problems. Students and early- and mid-career participants who are willing to explore new career directions are particularly encouraged to participate.

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American Association of Petroleum Geologists (AAPG)
Short Course
Virtual Short Course
Friday, 1 October 2021, 8:30 a.m.–12:00 p.m.

Cities around the world, and especially in densely populated regions like Asia, have the potential to be the most efficient form of human society. Maintaining sustainability in megacities is crucial to seeking a global sustainable solution for the limited space, water, and energy resources. Geophysics has the potential to provide essential knowledge for urban planning, urban activity monitoring, and urban circular economy. To fully release such potential, innovations are needed to integrate new and conventional sensors, as well as nondedicated sensors and open social information. Furthermore, both physics-based and data-driven methods are essential to delineating different sources for urban activity monitoring and urban space characterization. Bridging the gap between geophysics, civil engineering, geotechnical engineering, digital informatics, and social economics provides the framework to guide project owners and local authorities to develop specific strategies for the sustainable development and management of urban environments.

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American Association of Petroleum Geologists (AAPG)
Short Course
Virtual Short Course
Friday, 1 October 2021, 8:30 a.m.–12:00 p.m.

Geophysical challenges in presalt plays are significant from acquiring the right data, imaging, to property estimation of the subsurface in presalt environment. The focus of this workshop is to discuss latest geophysical ideas, and industry practices from locating, imaging to characterizing the reservoir.

American Association of Petroleum Geologists (AAPG)
Short Course
Virtual Short Course
Friday, 1 October 2021, 8:30 a.m.–12:00 p.m.

American Association of Petroleum Geologists (AAPG)
Short Course
Virtual Short Course
Friday, 1 October 2021, 8:30 a.m.–12:00 p.m.

DAS, DTS, and DSS are the three distributed fiber-optic sensing (DFOS) technologies that have drawn much attention in recent years. This workshop focuses on sharing the recent development of the hardware, software, and interpretation methods of DFOS applications in all fields of applied geophysics.

American Association of Petroleum Geologists (AAPG)
Short Course
Virtual Short Course
Thursday, 30 September 2021, 8:30 a.m.–5:00 p.m.

This workshop aims to provide an introduction to 3D computer geologic earth models and will include a discussion of how to make geophysical earth modelling more interoperable with geologic earth modelling, thus facilitating closer interaction between geologists and geophysicists.

American Association of Petroleum Geologists (AAPG)
Short Course
Virtual Short Course
Thursday, 30 September 2021, 8:30 a.m.–12:00 p.m.

Implementing carbon capture, usage, and storage (CCUS) projects at large scales is becoming a growing subject of interest for the geophysics community. This workshop will present what is already achievable but also the unknown and specificities that the geophysical community will face in the future.

American Association of Petroleum Geologists (AAPG)
Short Course
Virtual Short Course
Thursday, 30 September 2021, 8:30 a.m.–5:00 p.m.

The search and characterization of anthropogenic features is an important application for geophysical prospecting. Geophysical methods have also become a popular tool to detect both prehistoric and historic archaeological sites and for discovery of hydrologic and/or environmental problems at the archeological sites. This workshop will teach participants how geophysicists can be valuable collaborators for these investigations and aid in the planning for identifying unknown sites and future excavation or preservation plans.

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American Association of Petroleum Geologists (AAPG)
Short Course
Virtual Short Course
Thursday, 30 September 2021, 1:30 p.m.–5:00 p.m.

The Gravity and Magnetics Committee jointly with the Near Surface Technical Section and the Mining Committee call for papers for a workshop scheduled for two half-days and focusing on magnetic method in memory of a potential-field pioneer, Afif Saad. Workshop organizers welcome contributions from academia, industry, and government organizations that emphasize various applications of the magnetic method to a wide range of scientific and applied problems. Students and the early- and mid-career participants who are willing to explore new career directions are particularly encouraged to participate.

Show more
American Association of Petroleum Geologists (AAPG)
Short Course
Virtual Short Course
Thursday, 30 September 2021, 8:30 a.m.–5:00 p.m.

There is a significant amount of applications of machine-learning algorithms published in the area of applied geophysics in the past few years. In this workshop, we will discuss machine-learning applications for applied-geophysics problems with an emphasis on the value of machine learning over conventional approaches and workflows.

American Association of Petroleum Geologists (AAPG)
Short Course
Virtual Short Course
Thursday, 30 September 2021, 8:30 a.m.–5:00 p.m.

Applied geophysics has a major role to play in the development of environmental impact assessment and monitoring of renewable energy sources such as geothermal, hydro, nuclear, wind, wave, tidal, and solar. Many future opportunities will require a refocusing of our most powerful 3D imaging and inversion methods from the deeper earth toward the near surface.

American Association of Petroleum Geologists (AAPG)
Short Course
Virtual Short Course
Thursday, 30 September 2021, 1:30 p.m.–5:00 p.m.

As demands for metals increase globally, many national governments have initiated programs toward critical mineral mapping that leverage legacy potential-field data combined with newly acquired data at national to global scales. Join us to hear from geophysical service companies, government agencies, industry, and academia on how synthesis of multiple geophysical data sets to image the concealed parts of the geology is crucial to filling the gaps in our knowledge in understanding both commercial and noncommercial geology.

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American Association of Petroleum Geologists (AAPG)
Short Course
Virtual Short Course
Thursday, 30 September 2021, 8:30 a.m.–12:00 p.m.

DAS, DTS, and DSS are the three distributed fiber-optic sensing (DFOS) technologies that have drawn much attention in recent years. Sensing fibers can be deployed in places that are otherwise inaccessible due to small size, high endurance to harsh environments, long sensing range as well as limited cost. This workshop focuses on sharing the recent development of the hardware, software, and interpretation methods of DFOS applications in all fields of applied geophysics.

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American Association of Petroleum Geologists (AAPG)
Short Course
Virtual Short Course
Thursday, 30 September 2021, 8:30 a.m.–5:00 p.m.

This workshop will focus on applications of anisotropic models and methods to seismic fracture characterization and microseismic monitoring of hydraulic fracturing.

American Association of Petroleum Geologists (AAPG)
Short Course
Virtual Short Course
Thursday, 23 September Sunday, 26 September 2021, 9:00 a.m.–1:00 p.m.

This short course discusses the growing importance of the seismic anisotropy of rock masses in seismic acquisition, processing, and interpretation.

American Association of Petroleum Geologists (AAPG)
Short Course
Virtual Short Course
Saturday, 25 September Sunday, 26 September 2021, 10:00 p.m.–2:00 a.m.

Learn the high-level principles of five important topics in machine learning: neural networks; convolutional neural networks; support vector machines; principal component analysis; clustering methods. This short course is for physical scientists who have heard about Machine Learning (ML) and might know some details, but lack enough knowledge to assess ML applications in their specialty.

American Association of Petroleum Geologists (AAPG)
Short Course
Virtual Short Course
Thursday, 30 September 2021, 8:00 a.m.–3:00 p.m.

Introduction to Machine Learning (ML) – providing definitions, fundamental concepts of inference and prediction and the opportunity and limitations of ML

American Association of Petroleum Geologists (AAPG)
Short Course
Virtual Short Course
Thursday, 30 September – Friday, 1 October 2021, 8:00 a.m.–5:00 p.m.

Natural fractures may be conductive in conventional reservoirs or may become conductive after hydraulic stimulation in unconventional reservoirs. This course addresses these concepts by examining datasets from both conventional and unconventional systems and presenting workflows to construct naturally-fractured reservoir models.

American Association of Petroleum Geologists (AAPG)
Short Course
Virtual Short Course
Friday, 1 October 2021, 8:00 a.m.–5:00 p.m.

Energy Storage and CCSU are emerging fields that are already new business opportunity for petroleum professionals. This workshop reviews the basics of different Energy Storage Technologies, CCSU, and injection induced seismicity.

American Association of Petroleum Geologists (AAPG)
Short Course
Denver, Colorado
Saturday, 25 September Sunday, 26 September 2021, 8:00 a.m.–5:00 p.m.

This is a hands-on class anchored with a 65-piece teaching collection of natural and induced fractures in core that students will work with during class exercises. The class provides insights into fracture mechanics and the origins of fractures, and uses those concepts in a very applied sense to instill an understanding of natural fractures and their potential effects on permeability and fluid flow.

American Association of Petroleum Geologists (AAPG)
Short Course
Denver, Colorado
Saturday, 25 September Sunday, 26 September 2021, 8:30 a.m.–3:00 p.m.

This AAPGWN geochemistry short course is open to anyone interested in gaining an introduction to rock, oil, gas, and water geochemistry. The goal is to provide participants with a basic knowledge of geochemistry and its key applications in the exploration, appraisal, and development of oil fields.

American Association of Petroleum Geologists (AAPG)
Short Course
Denver, Colorado
Saturday, 25 September Sunday, 26 September 2021, 8:30 a.m.–5:00 p.m.

Refresh concepts and terminology of sequence stratigraphy and explore more advanced concepts of Sequence Stratigraphy and its impact on Exploration and Production

American Association of Petroleum Geologists (AAPG)
Short Course
Denver, Colorado
Saturday, 25 September Sunday, 26 September 2021, 8:30 a.m.–5:00 p.m.

Sequence stratigraphy is an informal chronostratigraphic methodology that uses stratal surfaces to subdivide the stratigraphic record. This course is designed to teach graduate students the principles, concepts and methods of sequence stratigraphy.

American Association of Petroleum Geologists (AAPG)
Short Course
Virtual Short Course
Thursday, 29 July Friday, 30 July 2021, 8:00 a.m.–5:00 p.m.

American Association of Petroleum Geologists (AAPG)
Short Course
Virtual Short Course
Thursday, 29 July Friday, 30 July 2021, 8:00 a.m.–5:00 p.m.

Gas-based EOR in tight unconventionals is a growing application to tap the vast unproduced oil and condensate resources in liquid-rich shale basins. The course will discuss the Huff-n-Puff gas EOR process specifically, but will also address relevant fundamentals of displacement-based gas EOR methods (miscibility, vaporization, and displacement) in tight unconventionals.

American Association of Petroleum Geologists (AAPG)
Short Course
Houston, Texas
Thursday, 29 July Friday, 30 July 2021, 8:00 a.m.–1:00 p.m.

This class provides insights into fracture mechanics and the origins of fractures, and uses those concepts in a very applied sense to instill an understanding of natural fractures and their potential effects on permeability and fluid flow. This has direct applications to the petroleum, geothermal, CO₂ sequestration and environmental industries.

American Association of Petroleum Geologists (AAPG)
Short Course
Houston, Texas
Thursday, 29 July 2021, 8:00 a.m.–9:00 a.m.

Shales and other low-permeability formations require multistage completions, hydraulic fracturing, and horizontal wells to produce at economic rates. This course focuses on the multistage completion systems that are used in these applications, including plug-and-perf, ball-activated systems (frac sleeves), and coiled tubing-activated systems (annular fracturing).

American Association of Petroleum Geologists (AAPG)
Short Course
Virtual Short Course
Thursday, 29 July 2021, 8:00 a.m.–5:00 p.m.

In Canada, methane regulations are in effect as of January 1, 2020. Capital and resource investment is required over the coming 12-18 months to ensure planning and compliance activities are properly executed. This session will provide insight into the solutions and prospective costs associated with pre-compliance planning and compliance activities.

American Association of Petroleum Geologists (AAPG)
Short Course
Houston, Texas
Tuesday, 3 August Friday, 6 August 2021, 8:00 a.m.–12:00 p.m.

This 16 hour course follows the life cycle of an oil or gas property, from concept to abandonment, from the engineer’s point of view. Case histories are used to illustrate the geophysical tools that the engineering group would apply to solve an oil field development problem at various points in the property’s lifetime.

American Association of Petroleum Geologists (AAPG)
Webinar
Virtual Webinar
Thursday, 26 August 2021, 8:00 a.m.–10:00 a.m.

Join industry leaders for an interactive discussion about best practices for energy more sustainable in all phases of the energy life cycle: from exploration and development, to production and transport, to use, re-use and disposal. Panelists will share their companies’ strategies for reducing their carbon footprint, helping their host countries achieve energy independence and improving lives of communities where they live and work.

American Association of Petroleum Geologists (AAPG)
Short Course
Virtual Short Course
Monday, 13 September 2021, 8:00 a.m.–4:00 p.m.

This course provides a 40-year paleogeographic synthesis of the Caribbean, northern South America (Colombia to Suriname), southern Mexico, Central America, and the Antilles, highlighting principles, opportunities and risks used to construct a regional hydrocarbon exploration framework.

American Association of Petroleum Geologists (AAPG)
Workshop
Virtual Workshop
Tuesday, 14 September Wednesday, 15 September 2021, 7:00 a.m.–4:00 p.m.

The Caribbean Technical Symposium and E&P Summit: Recent Activity and Exploration Opportunities includes a technical symposium featuring regional geology and hydrocarbon potential on September 14 and an E&P Summit featuring panel discussions with industry executives on September 15.

American Association of Petroleum Geologists (AAPG)
Online e-Symposium
Thursday, 20 August 2009, 12:00 a.m.–12:00 a.m.

This e-symposium covers advances in geothermal energy, integration with petroleum operations, and lessons learned in recent cases.

American Association of Petroleum Geologists (AAPG)
Online e-Symposium
Thursday, 21 October 2010, 12:00 a.m.–12:00 a.m.

This e-symposium covers how to conduct an interdisciplinary evaluation of mature fields to determine the best approach to recover remaining reserves.

American Association of Petroleum Geologists (AAPG)
Assistant Professor of Geological Science (Tenure Track) CSU Long Beach

The Department of Geological Sciences, California State University Long Beach (CSULB) invites applications for a tenure-track Assistant Professor in Geophysics or in any other Geoscience discipline that substantially employs geophysical methods in research to start Fall 2022. A qualified candidate should be dedicated to teaching at the undergraduate and Masters level and committed to developing an externally funded research program that will involve students.

VG Abstract

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.

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Request a visit from Sherilyn Williams-Stroud!

American Association of Petroleum Geologists (AAPG)
VG Abstract

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.

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Request a visit from Noelle Joy Purcell!

American Association of Petroleum Geologists (AAPG)
VG Abstract

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!

American Association of Petroleum Geologists (AAPG)
VG Abstract

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.

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Request a visit from Sherilyn Williams-Stroud!

American Association of Petroleum Geologists (AAPG)

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

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