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Sedimentology and Stratigraphy

Explorer Article By Ken Milam

Thanks to continuing advances in reservoir characterization, technology and innovative thinking, many oil fields around the globe have “grown larger” in recent decades. John Sneider, president of Sneider Exploration Inc., documented examples of mature field growth 20 years ago and recently revisited the topic to focus on mature giant fields. This updated analysis is detailed in chapter 4 of the new AAPG Memoir 125: “Giant Fields of the Decade: 2010 – 2020.”

Added on 01 January, 2022

Explorer Geophysical Corner By Kenneth Bredesen,Kurt Marfurt,Ritesh Sharma,Satinder Chopra,Thang Ha

Unsupervised Machine Learning for Characterizing a Geothermal Sandstone Reservoir

The estimated hydrocarbon reserves around the world, when produced, can keep us going for the next several decades. But scientific records and our own experiences are enough evidence that climate change is indeed happening. Addressing it requires energy extraction from non-fossil fuels. One such resource is the natural heat of the Earth, or geothermal energy.

Added on 01 January, 2022

Explorer Historical Highlights By Henry S. Pettingill,Paul Weimer,Rocky Roden

Making It All Work

Before unconventional resources became prevalent in the global petroleum supply, deepwater exploration and development was a significant focus for many larger companies. For deepwater activities to succeed, the petroleum industry was forced to merge its above-ground concerns with the below-ground geoscience and engineering disciplines.

Added on 01 January, 2022

Explorer Article By Emily Llinás

A Source-to-Sink Project Boosts Colombia’s Subsurface Knowledge

While the COVID-19 pandemic ground the world to a halt in 2020, crisis led to creativity and opportunity in many parts of the world. For four geoscientists in Colombia, the pandemic became the perfect time to serve their country and their profession. In May 2020, two weeks after oil prices dropped below zero, Colombia’s Ministry of Science, Technology and Innovation launched a bidding contest allocating nearly $3 million to finance geoscience research projects for the hydrocarbon sector.

Added on 01 January, 2022

Explorer Article By Heather Saucier

Charles ‘Gil’ Mull, ‘Pioneer of Alaskan Geology,’ Passes at 86

The geologist who helped lead the historical discovery of the Prudhoe Bay oilfield in 1968 and who carved a path for later discoveries that provided invaluable resources for the United States has passed. Charles “Gil” G. Mull, died at age 86 from complications of Parkinson’s Disease in Salt Lake City on Oct. 3.

Added on 01 December, 2021

Explorer Regions and Sections By Linda Sternbach

Mid-Continent Section Rebounds to New Heights, Pivots Toward the Future

The Tulsa Geological Society and the AAPG Mid-Continent Section enthusiastically celebrates the success of its annual convention in Tulsa. The Mid-Continent Section meeting showcased what Oklahoma geologists like: oil field history and local lore, Native American culture, combined with their beloved Pennsylvanian subsurface plays. The winning formula attracted attendance beyond post- pandemic expectations; more than 400 in-person attendees.

Added on 01 December, 2021

Explorer Article By Heather Saucier

Seven Habits of Highly Effective Energy Geoscientists

Emphasizing that the oil and gas industry will continue to play an important role in supplying energy to the world for years to come, past AAPG President Charles Sternbach shared what he called “Seven Habits of Highly Effective Energy Geoscientists” at the 20th Michel T. Halbouty Lecture at the International Meeting for Applied Geoscience and Energy conference in Denver recently. “We need to be proud of our profession and we need to be proud of what energy and oil and gas do to bring good things to humanity,” said Sternbach.

Added on 01 November, 2021

Explorer Article

Introducing the ‘Geology of’ Series, Hosted by the AAPG Women’s Network

The pandemic has been a challenge for all networking and social events but geologists have a history of seeking interaction with our friends and colleagues, regardless of the number of people around us – whether at a conference or couch, it makes no matter! This well-known fact inspired the AAPG Women’s Network and the Association for Women Geoscientists to kick-off a series of online networking and educational events that have fondly become known as the “Geology of” series. Everything we love has an underlying geologic aspect, and the “Geology of” series explores the links between geologic components such as climate, bedrock, soil and water chemistry. Two events have been hosted thus far in 2021: “Geology of Wine,” which saw more than 80 attendees, and “Geology of Beer,” which drew more than 500.

Added on 01 October, 2021

Explorer Article By Barry Friedman

Challenges to Deepwater Reservoir Characterization

It is no secret that deepwater depositional systems hold some of the largest petroleum reservoirs on Earth. To get those reserves out safely, effectively and economically from such depths requires technology, expertise, and a little bit of luck. The challenges associated with doing that – determining the presence, distribution and quality of those reserves – is the work of the Quantitative Clastics Laboratory at the Bureau of Economic Geology at the University of Texas at Austin.

Added on 01 October, 2021

Explorer Division Column DEG By Miriam Winsten

What Role Can AAPG Play in Sustainability?

A few years ago, our work team was tasked to create the company’s very first annual Sustainability Report. At that moment in time, we were not sure what that meant, what it would include and what its impact would be. Of course, the first questions we asked ourselves were: “What is sustainability?”, “What is ESG?”, “What are the United Nations Sustainable Development goals?” and “How does this pertain to the company, our industry, our technologies?”

Added on 01 September, 2021

Online e-Symposium

Thursday, 17 March 2011, 12:00 a.m.–12:00 a.m.

Basic Tools for Shale Exploration

This e-symposium will provide information on which tools, processes, and procedures all geoscientists, engineers, and technical professionals working in shale plays need to understand and implement.

Added on 02 December, 2013

Online e-Symposium

Thursday, 25 August 2011, 12:00 a.m.–12:00 a.m.

Overview of Hydraulic Fracturing Mechanics, Analysis and Design

This e-symposium provides highlights of the hydraulic fracturing mechanics, analysis, and design, and is derived from a two and one-half (2-1/2) day course which is designed for drilling, completion, production engineers, engineering technicians, geologists, well-site and completion supervisors, and managers, who desire to possess a comprehensive and integral knowledge of Hydraulic Fracturing.

Added on 02 December, 2013

Online e-Symposium

Thursday, 21 February 2013, 12:00 a.m.–12:00 a.m.

Petrophysics of Carbonates

The course will review core data, petrophysical comparisons, rock physics modeling (including pseudo logs and mechanical properties).

Added on 11 December, 2013

Webinar By Elda Miramontes

Virtual Webinar

Thursday, 19 November 2020, 12:00 p.m.–1:00 p.m.

Current-Controlled Sedimentation in Deep-Water Systems: Past, Present and Future Challenges

Another in a series of AAPG Visiting Geoscientist Presentations organized by the Manchester University AAPG Student Chapter. Sponsored by BP. Presented by Visiting Geoscientist Elda Miramontes, University of Bermen, Germany Webinar presented via Zoom on 19 November at 5:00pm (GMT-0)

Added on 10 November, 2020

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VG Abstract By Keith Gerdes

Tethyan Carbonates - Linking Tropical Seas and Crashing Plates to Some of the Largest Oil and Gas Fields in the World

The carbonate sequences that were deposited in the now exhumed Tethyan Ocean influence many aspects of our lives today, either by supplying the energy that warms our homes and the fuel that powers our cars or providing the stunning landscapes for both winter and summer vacations. They also represent some of the most intensely studied rock formations in the world and have provided geoscientists with a fascinating insight into the turbulent nature of 250 Million years of Earth’s history. By combining studies from the full range of geoscience disciplines this presentation will trace the development of these carbonate sequences from their initial formation on the margins of large ancient continental masses to their present day locations in and around the Greater Mediterranean and Near East region. The first order control on growth patterns and carbonate platform development by the regional plate-tectonic setting, underlying basin architecture and fluctuations in sea level will be illustrated. The organisms that contribute to sequence development will be revealed to be treasure troves of forensic information. Finally, these rock sequences will be shown to contain all the ingredients necessary to form and retain hydrocarbons and the manner in which major post-depositional tectonic events led to the formation of some of the largest hydrocarbon accumulations in the world will be demonstrated.

Request a visit from Keith Gerdes!

Added on 24 August, 2015

DL Abstract By Tao Sun

Integrated Reservoir Characterization and Modeling with Computational Stratigraphy

As oil and gas exploration and production occur in deeper basins and more complex geologic settings, accurate characterization and modeling of reservoirs to improve estimated ultimate recovery (EUR) prediction, optimize well placement and maximize recovery become paramount. Existing technologies for reservoir characterization and modeling have proven inadequate for delivering detailed 3D predictions of reservoir architecture, connectivity and rock quality at scales that impact subsurface flow patterns and reservoir performance. Because of the gap between the geophysical and geologic data available (seismic, well logs, cores) and the data needed to model rock heterogeneities at the reservoir scale, constraints from external analog systems are needed. Existing stratigraphic concepts and deposition models are mostly empirical and seldom provide quantitative constraints on fine-scale reservoir heterogeneity. Current reservoir modeling tools are challenged to accurately replicate complex, nonstationary, rock heterogeneity patterns that control connectivity, such as shale layers that serve as flow baffles and barriers.

Request a visit from Tao Sun!

Added on 20 July, 2022

Sedimentology and Stratigraphy

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