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Middle East Blog By Cora Navarro

2nd Edition: AAPG Decision Based Integrated Reservoir Modeling GTW – Event Review

We are pleased to announce that AAPG Middle East’s first virtual GTW on Decision Based Integrated Reservoir Modeling was a resounding success with fantastic feedback received from committee members, speakers and attendees. The virtual workshop took place from 1-4 February 2021 and attracted 65 attendees from 14 different companies and 8 different countries.

Added on 24 February, 2021

Learn! Blog By Susan Nash

My Favorite Outcrop: Jonathan Allen

Today we have a chance to explore outcrops in-depth with Jonathan Allen who shares his photos from Nova Scotia, Australia, the western U.S., and more.

Added on 09 February, 2021

Explorer Article By Doug Cook

Mars 2020 Perseverance Rover and International Mars Fleet Arrival

As this EXPLORER issue goes to press, there are three international robotic missions headed to their encounters with Mars this February. The United Arab Emirates’ Hope Mission will enter Mars orbit on Feb. 9, 2021. Its goal is to study Martian atmospheric dynamics and weather. China’s Tianwen-1 Mission is expected to enter Mars orbit on Feb. 10, 2021. A lander with a Mars rover will be deployed in May 2021 for a proposed landing zone in Utopia Planitia. The mission goals are to find evidence for current and past life, characterize Martian soil composition, and map water ice distribution. The NASA/Jet Propulsion Laboratory Mars Perseverance rover is scheduled to land at Jezero Crater on Mars on Feb. 18, 2021.

Added on 01 February, 2021

Explorer Division Column EMD By Ursula Hammes

EMD Outlook for 2021

Happy new year to all Energy Minerals Division and AAPG members! T.S. Eliot wrote, “For last year’s words belong to last year’s language, and next year’s words await another voice. And to make an end is to make a beginning.” Therefore, I am focusing on the exciting future outlook in energy minerals and not dwelling on the past year that has been painful to many of us on a personal and professional level.

Added on 01 February, 2021

Explorer Director’s Corner By David Curtiss

An Opportunity in Disguise?

First there was Peak Oil, the Malthusian fear that the world was running out of oil. This idea has been around for a long time but had its most recent renaissance in the mid- 2000s with a host of books warning that global demand was going to overwhelm the industry’s ability to supply. The expansion of unconventional oil and natural gas production quieted concerns about supply constraints. The world is not running out of hydrocarbons.

Added on 01 February, 2021

Explorer Historical Highlights By Gustavo Coronel

Chevron in Ecuador

In February 2011, the court in the small Ecuadorian town of Lago Agrio sentenced Chevron Corporation to pay $9.3 billion to a group of about 30,000 Ecuadorian residents of the Amazonian region where Texaco, later acquired by Chevron, had been producing oil for 26 years. The trial was the stuff of which Hollywood movies are made. This legal saga combined fundamental environmental issues, political intrigue, judicial corruption, corporate greed and cliff-hanging courtroom drama. Above all it unveiled the tragedy of a young and brilliant U.S. lawyer who felt he could obtain big money from a giant oil corporation while becoming a hero for the underdogs of this world.

Added on 01 February, 2021

Explorer Geophysical Corner By Malcolm Lansley

Low Frequency Land Seismic Data Acquisition

For many years the geophysical industry has spent considerable time and effort on improving the high-frequency content of recorded seismic data in the pursuit of higher resolution. However, in the last two decades we have seen an increased interest in extending the bandwidth of our data toward lower frequencies as well. In this series of two articles, I will address the reasons we need low-frequency information, the issues related to its acquisition for onshore projects and discuss the equipment and methods being used.

Added on 01 February, 2021

Explorer Article By Emily Llinás

Beyond Exploration

AAPG members throughout the world are proving that geologists can be highly beneficial to the oil and gas companies that employ them in areas beyond just exploration alone. Two of them are Karyna Rodriguez, vice president of global new ventures at Searcher in London, and Eduardo Vallejo, program lead of technologies and subsurface knowledge at YPF Tecnología in Buenos Aires. In interviews with the EXPLORER, both shared stories about their careers and provided advice to the next generation of professionals.

Added on 01 February, 2021

Explorer President’s Column By Rick Fritz

Predicting the Future and How It Impacts AAPG

I went to a talk years ago by a speaker who was introduced as a “futurist” for his ability to predict. I’ve always wanted the title of “futurist,” but I’ve not earned it. I’ve been reading a lot of predictions for 2021 from various magazines, papers and blogs. Now I’m as close to a futurist as I will ever get, so here are a few predictions from the experts (I agree with) and how they may impact AAPG.

Added on 01 February, 2021

Explorer Article By Dave Larue

The One Where Gilligan and Frankenstein Chase Goldilocks

Not surprisingly, that idea met with an abundance of caution, and even skepticism, from an industry that experienced the severe downturn of 2014-16 followed by the worldwide COVID pandemic of 2020. Still, “I think there’s plenty to be excited about, especially given the recent upsurge in oil prices,” says one analyst.

Added on 01 February, 2021

DL Abstract By Frank Peel

A Lost World Rediscovered: 3D Seismic Data Reveal Spectacular Images of a Jurassic Landscape on the Eve of Louann Salt Deposition in the Gulf of Mexico, with Implications for Salt Deposition

Around 170 million years ago, the Gulf of Mexico basin flooded catastrophically, and the pre-existing landscape, which had been a very rugged, arid, semi-desert world, was drowned beneath an inland sea of salt water. The drowned landscape was then buried under kilometers of salt, perfectly preserving the older topography. Now, with high-quality 3D seismic data, the salt appears as a transparent layer, and the details of the drowned world can be seen in exquisite detail, providing a unique snapshot of the world on the eve of the flooding event. We can map out hills and valleys, and a system of river gullies and a large, meandering river system. These rivers in turn fed into a deep central lake, whose surface was about 750m below global sea level. This new knowledge also reveals how the Louann Salt was deposited. In contrast to published models, the salt was deposited in a deep water, hypersaline sea. We can estimate the rate of deposition, and it was very fast; we believe that the entire thickness of several kilometers of salt was laid down in a few tens of thousands of years, making it possibly the fastest sustained deposition seen so far in the geological record.

Request a visit from Frank Peel!

Added on 16 November, 2022

DL Abstract By Shane Prochnow

Subsurface Machine Learning Approaches at Hydrocarbon Recovery and Resource Forecasting for Unconventional Reservoir Systems

This presentation is a survey of subsurface machine learning concepts that have been formulated for unconventional asset development, described in the literature, and subsequently patented. Operators that utilize similar subsurface machine learning workflows and other data modelling techniques enjoy a competitive advantage at optimizing the development of unconventional plays.

Request a visit from Shane Prochnow!

Added on 14 September, 2023

DL Abstract By John Suppe

Probing What Makes the Crust Strong (or Weak): Insight from Boreholes, Earthquakes, Active Fault Systems, and Toy Models

For well over a century there have been conflicting indications of the strength of the crust and of faults and what controls them. Much of our ignorance comes quite naturally from the general inaccessibility of the crust to measurement--in contrast with our understanding of the atmosphere, which is much more accessible to observation as well as more rapidly changing. Crustal strength is best understood in deforming sedimentary basins where the petroleum industry has made great contributions, particularly in deforming petroleum basins because of the practical need to predict. In this talk we take a broad look at key issues in crustal strength and deformation and what we can learn from boreholes, earthquakes, active fault systems, and toy models.

Request a visit from John Suppe!

Added on 14 September, 2023

VG Abstract By Juan I. Soto

How Orogens Could Collapse Forming Sedimentary Basins: The Case of the Betic-Rif Orogen

The Betic hinterland, in the westernmost Mediterranean, constitutes a unique example of a stack of metamorphic units. Using a three-dimensional model for the crustal structure of the Betics-Rif area this talk will address the role of crustal flow simultaneously to upper-crustal low-angle faulting in the origin and evolution of the topography.

Request a visit from Juan I. Soto!

Added on 26 June, 2019

DL Abstract By Cynthia Liutkus-Pierce

Reconstructing a Late Pleistocene East African Paleolandscape using the Footprints of our Ancestors

Fossil hominin footprints offer a unique and immediate snapshot of our ancestors' lives, capturing their ecological, environmental, and behavioral contexts over remarkably short time scales. This presentation delves into the discovery and analysis of over 400 human footprints from Engare Sero, Tanzania, located on the southern shore of Lake Natron.

Request a visit from Cynthia Liutkus-Pierce!

Added on 19 August, 2024

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 John Castagna

Beyond Physics in Geophysics

Physics is an essential component of geophysics but there is much that physics cannot know or address.

Request a visit from John Castagna!

Added on 14 September, 2023

DL Abstract By Kurt W. Rudolph

Tectonic Controls on Source Rock Deposition

While there are many habitats that are associated with the deposition of organic-rich marine and lacustrine source rocks, one important pathway is linked to the onset of increased basin subsidence associated with major tectonic events. A key aspect is that this subsidence is spatially variable, with the uplift of basin flanks contemporaneous with the foundering of the basin center, resulting in a steeper basin profile.

Request a visit from Kurt W. Rudolph!

Added on 14 September, 2023

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

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