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Sedimentology and Stratigraphy

Professor Helps Discover Global Gap in Geologic Record - 10 October, 2024 07:30 AM

Explorer Historical Highlights By Kira Timm,M. R. Silverman

Shale Plays Led the Way in Colorado’s Pioneer Days

Colorado’s hydrocarbon industry was built on the foundation of early explorers and field geologists venturing through rough and often dangerous terrain, surveying and mapping in a young nation at a time when geology was in its technological infancy. Without even the aid of a Brunton compass (patented 1894) early geologists, such as Ferdinand Hayden and John Powell, created the beginnings of Colorado’s geological knowledge through exceptional skill and work, upon which we continue to build today.

Added on 01 May, 2023

Explorer Article By Emily Llinás

A Laboratory for Deepwater Systems

In a world with discussions about Peak Oil and transition away from hydrocarbons, the Caribbean remains a bright spot for traditional oil and gas exploration. From Trinidad and Tobago’s 100-year hydrocarbon industry in the north to massive discoveries in the Guyana Suriname Basin in Northern South America, there’s good reason why companies around the world are focused on the region. Developing and maintaining the local workforce is key to continued exploration and development, and AAPG’s Latin American and Caribbean Region is committed to aiding countries in making that possible.

Added on 01 May, 2023

Explorer Article By Charles Sternbach,Linda Sternbach

A New Century, Renewed Vision

We joined the Houston Geological Society shortly after arriving in Houston as new-hire geologists in 1984. We met thousands of fellow geoscientists by attending, and organizing, hundreds of technical talks for 39 years. We learned about exciting discoveries, plays and technology from those who made them happen. Along the way, we became friends with a few legends. We are grateful for the deep friendships that arose while serving as HGS volunteers. With a grateful heart, we are happy to share our committee’s plans to celebrate the centennial year.

Added on 01 April, 2023

Explorer Article By David Brown

Offshore Investment Sees Massive Revival

Over the next two years, led by the Middle East and South America, a resurgent offshore sector is poised to reach its highest level of activity in more than a decade. That’s right: the Middle East. With so much happening around the world, the energy industry will need to play catch-up to prepare for future growth.

Added on 01 April, 2023

Explorer Historical Highlights By Rasoul Sorkhabi

Steineke of Arabia

Working in arduous desert conditions and leading a team of explorers in the 1930s and ‘40s from the company that would come to be Aramco, Max Steineke put Saudi Arabia on the world petroleum map. A definitive, book-length biography of Steineke is yet to be written, but what follows outlines his career and contributions to petroleum geology and exploration during a period and in places far from the comforts, facilities and technologies enjoyed today. And yet, his exploration output from a single basin remains unparalleled, and his story offers valuable insights.

Added on 01 March, 2023

Explorer Foundation Update By Vern Stefanic

The Trials and Triumphs of AAPG’s Distinguished Lecture Program

Being an AAPG Distinguished Lecturer, from the very first speaking tour in 1941, was always a prestigious achievement and a source of honor and pride for those selected as speakers. It was always recognized and praised as an important vehicle for the profession’s top geoscientists to share the latest in industry insights and advances. It always showcased geologists who truly were distinguished. What it wasn’t always, was easy.

Added on 01 February, 2023

Explorer Emphasis Article By David Brown

Clean Energy Opportunity Adds to Super Basins Appeal

Energy super basins grabbed the attention of the oil and gas industry during the past five years, with good reason. Now a period of re-evaluation has kicked in. Producers are looking beyond total resource potential to apply other criteria, including economic, environmental and regulatory considerations. Those yardsticks could help identify which basins will dominate energy production in the decades ahead.

Added on 01 February, 2023

Explorer Article By Doug Cook

Perseverance Reaches a Mission Milestone on Mars

It’s been two years since NASA’s Perseverance rover successfully landed on Mars, where its exploration of Jezero Crater continues. Perseverance rover’s primary surface mission was designed to last one Mars year, or 687 Earth days, beginning with its Feb. 18, 2021 landing. It reached that milestone on Jan. 6. As of Jan. 7, the rover has entered its extended mission phase.

Added on 01 February, 2023

Explorer Article By Charles Sternbach

‘Deepwater Sedimentary Systems’: Science, Discovery and Applications

Why deepwater? In addition to expanding our knowledge on sedimentary systems that cover 70 percent of our planet, deepwater systems host promising resources and energy potential for the future. Their characteristic high-rate productivity also means fewer wells, which is good news for lower carbon emissions. Deepwater systems also benefit from the highest quality offshore 3-D and 4-D seismic. Thus, we see more clearly with ever-improving technology. Deepwater concepts and paradigms are rapidly evolving. The 2022 book “Deepwater Sedimentary Systems” sets a firm and comprehensive foundation.

Added on 01 December, 2022

Explorer Emphasis Article By Doug Cook

Exploring for Signs of Life in the Outer Solar System

Human exploration of the Earth and our universe is pushing ever-expanding boundaries. Along with renewed exploration of the moon and ongoing exploration of Mars, we have also probed the outer reaches of the solar system, and beyond. Beginning in 1972, NASA has executed many successful missions to the outer solar system that have exponentially increased our knowledge of Jupiter, Saturn, Uranus, Neptune, Pluto and their myriad of intriguing moons, such as Pioneer 10 and 11, Voyager 1 and 2, Galileo, Cassini, New Horizons and Juno. These missions have also kindled questions that we did not even know to ask a few decades ago.

Added on 01 December, 2022

Field Seminar

Houston, Texas

Saturday, 1 February 2025, 8:30 a.m.–1:00 p.m.

Buffalo Bayou K-12 Educators Hurricane Hike

Everyone in Houston lives within a few miles of a bayou. Some people think of them as permanent, but the bayous are constantly changing, especially during high water events like Hurricane Harvey. This trip is a 2.5 mile walk down a section of Buffalo Bayou where we will look at the archives of past storms and discuss what to do for future storms.

Added on 05 December, 2023

Webinar

Virtual Webinar

Saturday, 3 October 2020, 8:00 a.m.–9:00 a.m.

Sequence Stratigraphy – A Tool to Mitigate Risk in E&P Industry

Join us to hear KB Trivedi, Petroleum Geologist, discuss the paradigm of sequence stratigraphy has it enters a new phase. Webinar will be presented via Zoom on 03 October 2020, 8:00 am CST

Added on 17 September, 2020

Online e-Symposium

Thursday, 7 June 2012, 12:00 a.m.–12:00 a.m.

New Production in Old Fields: Case Study in the Hunton Dolomite

Unger Field, discovered in1955, has produced 8.6 million barrels of oil from a thinly (several ft) bedded, locally cherty dolomite containing vuggy and intercrystalline porosity.

Added on 11 December, 2013

Webinar By Rachelle Kernen

Virtual Webinar

Thursday, 3 December 2020, 11:00 a.m.–12:00 p.m.

Lithostratigraphy and Chemostratigraphy of Salt Diapir Sedimentary Inclusions: Unraveling Ediacaran Salt Tectonics in the Flinders Ranges, Australia

Patawarta Diapir, approximately 2-6km2 located in the Central Flinders Ranges, South Australia, has been interpreted as a single allochthonous salt sheet containing Tonian-aged igneous and layered evaporite sedimentary intrasalt inclusions derived from the Callanna Group. In this webinar, Rachelle Kernen describes the diapir as five primarily silty limestone inclusions (0.5-2km2), re-interpreted as Ediacaran-aged Wonoka Formation and Patsy Hill member of the Bonney Sandstone (Wilpena Group). Webinar presented Thursday 3 December 2020 at 11:00 SGT (GMT+8) Singapore time

Added on 10 September, 2020

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

Webinar By Vitor Abreu

Virtual Webinar

Thursday, 24 September 2020, 8:30 p.m.–9:30 p.m.

A Simplified Guide to Sequence Stratigraphy

In the past 3 decades the sequence stratigraphy jargon has proliferated, resulting in multiple definitions of the same surface or new surfaces and units based on drawings of deposition in response to relative changes in sea level. The close association between base-level changes, the formation of surfaces, and specific stratal stacking that define systems tracts are at the heart of the confusion. This webinar is proposed a back-to-basics approach, emphasizing key observations that can be made from any geologic data: lithofacies, lithofacies association, vertical stacking, stratal geometries, and stratal terminations.

Added on 06 August, 2020

Webinar By Tiago Alves

Virtual Webinar

Thursday, 10 September 2020, 3:00 p.m.–4:00 p.m.

Oil and Gas Fields of the 22nd Century: The Quest for Economic and Environmental Sustainability on Continental Margins

Economic oil and gas fields have been increasingly found in deep-water continental margins for the past decade, where potential prospects record the key tectonic events associated with plate breakup and continental drift. In these regions, the exploitation of economic resources must take into account sustainable practices and environmental concerns of local populations. This talk will present case studies from multiple continental margins to then extrapolate major findings to basins in SE Asia.

Added on 06 August, 2020

Online e-Symposium

Thursday, 11 November 2010, 12:00 a.m.–12:00 a.m.

Geochemical Evaluation of Eagle Ford Group Source Rocks and Oils from the First Shot Field, Texas

This e-symposium is ideal for geologists, geophysicists, engineers and other geoscientists who are involved in gas shale exploration and production.

Added on 02 December, 2013

Online e-Symposium

Wednesday, 5 March 2014, 12:00 a.m.–12:00 a.m.

Virtual Field Trip: Geology of the Grand Canyon, Bryce Canyon, and Zion National Parks

Explore three of the great wonders of the geological world. Take a guided tour of classic geological sites on the Colorado Plateau.

Added on 11 December, 2013

Webinar By Mauricio Isreal Guizada Duran

Virtual Webinar

Tuesday, 23 June 2020, 2:00 p.m.–3:00 p.m.

Geology and Geophysics of Oil Exploration – Andes Exploration - Spanish Talk

Visiting Geoscientist Mauricio Guizada provides an overview of general structural geology of the Andes, with a focus on the Central Andes. His talk covers topics related to onshore exploration, G&G methods in exploration and risk analysis. Join Mauricio Guizada via Zoom on June 23 at 4pm CDT.

Added on 28 May, 2020

Webinar By Dorrik Stow

Virtual Webinar

Thursday, 12 November 2020, 5:00 p.m.–6:00 p.m.

Deliberate Search for the Contourite Play: The New 21st Century Deepwater Exploration Target

Contourites have come of age – both scientifically and economically. These deepwater sedimentary systems, driven by long-slope bottom-current processes, are a fundamental component of many continental margin successions. They are inter-bedded with and interact with down-slope systems, pelagic systems, and deep tidal processes. The contourite play clearly works – now we need to make it a primary target in future deepwater exploration.

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 Lesli Wood

The Shelf is a Dangerous Place: Surfing the Cretaceous Seaways

Engineering of wind farms, development of carbon sequestration projects in shelfal waters, the proliferation of communication cables that connect the world, all of these things suggest that it is time to re-examine what we know about shelf processes both updip-to-downdip and along shoreline, and the influence of shelf processes on erosion and transport of sediments.

Request a visit from Lesli Wood!

Added on 19 August, 2024

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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