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Explorer Geophysical Corner By Kurt Marfurt,Renjun Wen,Rongfeng Zhang,Satinder Chopra

Enhancing Interpretation with the Fault Likelihood Attribute

Whatever the style of faulting, manual interpretation of faults on vertical seismic sections is traditionally a laborious and time-consuming process. Seismic attributes such as coherence, variance and Sobel filters accelerate the fault interpretation process. Fault-sensitive attributes can be further subjected to image enhancement methods such as swarm intelligence, Radon transforms, and smoothing and sharpening filters aligned parallel and perpendicular to the fault attribute anomaly. One such development is the fault likelihood attribute.

Added on 01 May, 2021

Explorer Article By Doug Cook

Exploring Mars with the Ingenuity Mars Helicopter

A series of articles in AAPG EXPLORER has been following the progress of the Mars 2020 Perseverance rover since its launch on July 30, 2020. Perseverance landed in Jezero Crater on Mars on Feb. 18, 2021 with an EXPLORER Live! panel and audience. Perseverance has been performing systems checks, executed its first drives, and zapped a few rocks for analysis with its SuperCam laser. Now we have witnessed the deployment of the Ingenuity helicopter for the first-in-history aerial, powered flight on another planet.

Added on 01 May, 2021

Explorer President’s Column By Rick Fritz

Innovation Causation

It is sometimes said that every good idea and every innovation needs a good story. After 2020 we are now re-writing our individual and collective stories. Post COVID-19 reality has allowed AAPG members to reach beyond their normal geographical areas of influence. It is said that “necessity is the mother of all invention.” If that’s the case, then as a corollary I say that “failure is the father of most innovation.”

Added on 01 May, 2021

Explorer Article By Emily Llinás

Hunting Hydrocarbons Offshore Honduras

In the 1960s and '70s, many oil companies collectively drilled 50 wells in the Chortis plate, an arrow-shaped, large segment of continental crust projecting into the Western Caribbean from onshore Honduras and Nicaragua, 1,000 kilometers east toward Jamaica. Civil unrest and a deteriorating investment climate in Central America halted offshore exploration in the early 1980s and the area remained largely unnoticed while companies focused on Mexico, Venezuela and Colombia. Decades later, the Chortis plate caught the attention of Chris Matchette-Downes, a petroleum geochemist and entrepreneur with a history of finding commercial exploration opportunities in Europe, East Africa and, more recently, the Caribbean.

Added on 01 May, 2021

Explorer Emphasis Article By David Brown

Global Energy Outlook: OPEC+, Energy Transition Are Key

The best-case outlook for the future of world energy looks highly positive for the oil and gas industry. In that outlook, energy demand returns to pre-pandemic levels and production increases as the world’s economies recover, giving the industry an opportunity for a strong rebound and years of attractive growth. But other scenarios could put roadblocks in the way of exploration and production, some of them potentially coming from the energy industry itself. OPEC+ definitely holds one key to the future, and the global energy transition appears to have picked up a considerable amount of momentum over the past year and a half.

Added on 01 May, 2021

Explorer Emphasis Article By Barry Friedman

Eliminating Fossil Fuels is 'Aspirational, Not Practical,' Says Sen. Joe Manchin

“If you care about the climate, elimination is not the way to go. Innovation is,” said Sen. Joe Manchin, D-W. Va., chairman of the Senate Energy and Natural Resource Committee, at a forum sponsored by General Electric and hosted by the news website Axios on the eve of President Joe Biden’s global climate summit last month. That the summit was held during Earth Day was not a coincidence. The forum, which also included as guests, Southern Company Chairman, President and CEO Thomas Fanning, and GE Chairman and CEO Larry Culp, was part of the media company’s “Energy Forward” series, which focuses on politics and policies surrounding sustainability, energy efficiency and new technologies in the coming decades.

Added on 01 May, 2021

Explorer Emphasis Article By Heather Saucier

Net-Zero Emissions by 2050? Not Without Nuclear

In the quest to reach net-zero emissions of energy-related carbon dioxide by 2050, a longtime goal of the United States, other world governments and energy agencies, no one is even close to achieving it. Despite 2020’s largest decline in emissions as a result of less energy usage during the COVID-19 pandemic, the EIA anticipates “a rapid rebound in energy demand and emissions” this year. Furthermore, they project that by 2050, U.S. energy-related emissions will be 5-percent higher than 2020 levels. Although it looks unlikely, net-zero carbon emissions by 2050 is possible, according to at least one notable expert within AAPG, but not without a strong reliance on nuclear energy.

Added on 01 May, 2021

Explorer Article By Heather Saucier

Keystone XL Cancellation: A Victory for the Environment?

When the Biden administration effectively canceled the Keystone XL Pipeline as a first order of business in January, environmentalists all over North America celebrated a major victory. “There was no magic to how we beat the Keystone XL Pipeline – it was grit, shared leadership and never forgetting who and what we were fighting for,” said the chair of the Nebraska Democratic Party. But did they really know what they were fighting for?

Added on 01 May, 2021

Learn! Blog By Susan Nash

New Energy Economy 2025: AAPG-EMD Webinar

There is a lot of talk about the 2050 carbon neutral destination. Some companies are progressing and well into their journey, some have strayed off track, and some have not started. So, what does the route look like and how can progress be measured in terms of time and distance? Join EMD for a webinar via Zoom: May 19, 2021 07:00 PM Central Time (US and Canada)

Added on 21 April, 2021

Asia Pacific Blog By Adrienne Pereira

Dr Ali Jaffri gives a course on 'How to Approach Carbonate Reservoirs'

This short-course covers a systematic step-by-step methodology for approaching carbonate reservoirs. It was initially developed for the engineering department at the Colorado School of Mines and has now become an annual tradition due to its popularity. You will get to see fantastic examples that have real-world sub-surface applications using data that is not available in the public domain.

Added on 19 April, 2021

Workshop

Houston, Texas

Thursday, 6 June – Friday, 7 June 2024, 8:00 a.m.–1:00 p.m.

Geothermal, Lithium, Hydrogen: New Energy from Subsurface Fluids Conference

For the first time, the American Association of Petroleum Geologists and Geothermal Rising are bringing together geothermal, critical minerals and gases to explore the connections between them, either in the formation of the reservoirs or reserves, or in exploring for, evaluating, and producing them. Specifically, the conference will bring together geothermal, lithium, geologic hydrogen, helium, iodine, and more in the form of technical presentations, probing panel discussions, poster sessions, and more.

Added on 12 March, 2024

DL Abstract By Alex Simms

Interactions Between Ice Sheets and Relative Sea Levels: Lessons From Antarctica and NW Scotland

Local sea-level changes are not simply a function of global ocean volumes but also the interactions between the solid Earth, the Earth’s gravitational field and the loading and unloading of ice sheets. Contrasting behaviors between Antarctica and Scotland highlight how important the geologic structure beneath the former ice sheets is in determining the interactions between ice sheets and relative sea levels.

Request a visit from Alex Simms!

Added on 21 July, 2022

DL Abstract By Kurt W. Rudolph

The Assembly of Pangea, a View from Laurentia: Paleozoic Orogenies and their Impact on Basin Evolution and Petroleum Systems

Paleozoic North America has experienced multiple mountain building events, from Ordovician to Permian, on all margins of the continent. These have had a profound effect on the resulting complex basins and their associated petroleum systems. Subsequent uplift, erosion and overprinting of these ancient systems impedes the direct observation of their tectonic history. However, the basin sedimentary records are more complete, and provide additional insights into the timing and style of the mountain building events. In this study, we employ ~90 1D basin models, ~30 inverse flexural models, isopachs, and paleogeographic maps to better understand the Paleozoic history of North America.

Request a visit from Kurt W. Rudolph!

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

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 Isabelle Moretti

The Natural H₂ Exploration Started: Why, Where and by Who?

Why H₂ is generated in subsurface? Which are the reactions and the promising geological setting? Example in countries where H₂ have already been found: Australia, Brazil. Kinetic reactions: i.e., Is the natural H₂ renewable? What we don't know yet about this resource and about the H₂ systems (generation/transport/accumulation). Overview of the current landscape (subsurface law, permitting, E&P activity)

Request a visit from Isabelle Moretti!

Added on 13 September, 2023

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

VG Abstract By Juan I. Soto

Salt versus Shales in Continental Margins and Orogens

In comparison with the known boundary conditions that promote salt deformation and flow in sedimentary basins, the processes involved with the mobilization of clay-rich detrital sediments are far less well established. This talk will use seismic examples in different tectonic settings to document the variety of shale geometries that can be formed under brittle and ductile deformations.

Request a visit from Juan I. Soto!

Added on 26 June, 2019

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 Jennifer Wilcox

The Role of Carbon Capture in Meeting Net-Zero Carbon Goals

President Biden has laid out a bold and ambitious goal of achieving net-zero carbon emissions in the United States by 2050. The pathway to that target includes cutting total greenhouse gas emissions in half by 2030 and eliminating them entirely from the nation’s electricity sector by 2035. The Office of Fossil Energy and Carbon Management will play an important role in the transition to net-zero carbon emissions by reducing the environmental impacts of fossil energy production and use – and helping decarbonize other hard-to abate sectors.

Request a visit from Jennifer Wilcox!

Added on 20 July, 2022

DL Abstract By Sherilyn Williams-Stroud

Atmospheric and Social Climate Change: Implications for the Future Geoscience Workforce

Climate change is not only happening in the atmosphere but also in the anthroposphere; in some ways the former could drive or exacerbate the latter, with extreme weather excursions and extreme excursions from societal norms occurring all over the earth. Accomplishing geoscience for a common goal – whether that is for successful business activities, resource assessment for public planning, mitigating the impacts of geological hazards, or for the sheer love of furthering knowledge and understanding – can and should be done by a workforce that is equitably developed and supported. Difficulty arises when the value of institutional programs to increase equity and diversity is not realized.

Request a visit from Sherilyn Williams-Stroud!

Added on 14 September, 2023

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