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Explorer Article

A Preview of IMAGE ’21

The International Meeting for Applied Geoscience and Energy, or IMAGE ’21, the integrated annual convention of AAPG and the Society of Exploration Geophysicists in conjunction with the Society for Sedimentary Geology, is all set for its inaugural event to be held online and in-person in Denver, Colo., Sept. 26 to Oct. 1. This gathering of the industry’s top thinkers, leaders and innovators boasts an impressive schedule of special sessions, workshops, field trips and other offerings to expand geoscience and professional skills.

Added on 01 August, 2021

Explorer Geophysical Corner By Christ Ramos,Heather Bedle

Convolutional Neural Network for Fault Prediction

Overall, machine learning has introduced us to a whole different world that has taken geoscientists by surprise. However, the real question is how much can we trust the machine? How accurate can it be? And the most intriguing question of all – can machine learning replace the interpreter? We will analyze three machine learning processes to assess the pros and cons of utilization of convolutional neural networks for fault prediction versus interpretations made by the user in a highly complex polygonal fault section of a 3-D seismic reflection dataset.

Added on 01 August, 2021

Explorer Geophysical Corner By Kurt Marfurt,Satinder Chopra,Thang Ha

Revisiting RGB Color Blending

Blending of seismic attributes with additive primary colors is a standard visualization procedure used by interpreters to integrate the information contained in them and carry out comprehensive interpretation. In the December 2019 and February 2020 installments of Geophysical Corner, we described how color is perceived by the human eye, and how colors are rendered on interpretation workstation monitors. We also described the additive RGB color model which forms the working model for computer monitors, as well as the subtractive CMYK model and the HSV and HSL color models frequently used for covisualizing seismic attributes.

Added on 01 July, 2021

Explorer Emphasis Article By John Dolson

‘Giant Oil Fields of the World’ is Going Online with Memoir 125

Analog traps are an important part of any geoscientist’s tool kit, and there is no better source than understanding how giant fields form and have been found by past and current generations of explorers. My sojourn into learning about these big fields was in the mid-1980s at Amoco in Denver, part of a task force charged with understanding how to better explore for big, subtle, stratigraphic and combination traps. Meeting weekly for lunch for several months, a team of us reviewed Amoco’s proprietary “Red Book” – a collection of summaries of giant fields worldwide, which included maps and rock properties, but, more importantly, the strategy used in finding each field. In addition, we pulled heavily from AAPG giant fields publications compiled from hundreds of AAPG volunteers.

Added on 01 July, 2021

Explorer Article By Heather Saucier

Hope for Alaska's Oil Projects Fueled by Recent Court Decisions

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.

Added on 01 July, 2021

Explorer Article By Emily Llinás

CarbonSAFE Project Uses Core Technology to Identify CO₂ Storage Potential

Increasing global concern about climate change and its impact on the environment and society has led to a variety of strategies to reduce carbon dioxide emissions and to remove CO₂ from the atmosphere and find places to store it. Many companies are hard at work to perfect methods of carbon capture, use, and storage. Franek Hasiuk, associate scientist at Kansas Geological Survey, said CCUS is the best technology available to reduce emissions produced by the global economy. Hasiuk is part of a team of scientists working on the Integrated Midcontinent Stacked Carbon Storage Hub, a project to investigate subsurface geology in southwest Kansas and southwest Nebraska and demonstrate the viability of injecting CO₂ into underground rock layers.

Added on 01 June, 2021

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 Regions and Sections By Barry Friedman

Diverse Talents Converge in New Kuala Lumpur SIG

The overriding principle of AAPG’s special interest groups is to create an environment in which experienced professionals with like-minded views and concerns can come together to discuss, share, commiserate and become familiar with industry trends and Association events. Further, such groups create an environment in which individual members, including those in academia and service companies, as well as those in non-petroleum-based companies, both contribute to and benefit from programs and events of interest. The geoscience community in Kuala Lumpur, Malaysia was no stranger to the concept. For years, there was a SIG for young professionals, but the thinking was that there also needed to be something tailored for the experienced professional.

Added on 01 April, 2021

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

Noise Suppression with Structure-Oriented Stacking

Seismic data are usually contaminated with noise, which, stated simply, refers to unwanted signal. Noise in seismic data can originate from various sources but processed seismic data may contain the following types of noise: random noise, steeply dipping coherent noise, aliased coherent noise that may appear to be random, and coherent multiples that are often subparallel to the reflectors of interest.

Added on 01 April, 2021

Explorer Article By Joseph Moore

Utah FORGE Applies Unconventional Resource Methods for Geothermal Research

New ground-breaking advances are currently being made at the Utah Frontier Observatory for Research in Geothermal Energy using methods borrowed from the oil and gas industry for unconventional hydrocarbon development. Recently, geothermal history was made when Utah FORGE successfully completed the first of two highly deviated deep wells in the hot, hard granite that will form the geothermal reservoir.

Added on 01 April, 2021

Field Seminar

Banff, Canada

Saturday, 11 May 2024, 8:00 a.m.–3:00 p.m.

Transect through the Foothills and Front Ranges of Banff

Time: 8:00am - 5:00pm Fee: $300 AAPG members $350 Nonmembers $200 Academic/AAPG Emeritus Members $50 discount for workshop registrants Fee Includes: Transportation Insurance Field guide Entrance fee to Banff National Park Registration available during workshop registration This field trip will focus on the structural geology of the foothills and Front Ranges of Banff. Participants will be able to view excellent field examples of structures very similar to the producing oil and gas fields in the foothills to the west of Calgary and to learn about the complexities of sub-seismic-scale deformation. The field trip starts with an introduction to the interaction between thrust front with foreland basins and the interaction of basement trends with thrust belt geometries and (conventional) hydrocarbon fields. During the 1-day trip participants will follow a dip transect from the undeformed foreland basin, the eastern edge of the foothills marked by the triangle zone, the Front Ranges boundary and end at the Main Ranges west of Banff. Field Trip Itinerary Depart from Calgary – 8:00 a.m. Stop 1: Cochrane Retreat Road Overlook Trip overview and introduction; safety and logistics comments; interaction of thrust front with foreland basin; interaction of basement trends with thrust belt geometry and (conventional) hydrocarbon field distribution; appreciation of scale for subsurface play fairway. Stop 2: Scott Lake Stop 3: The Stony Nakoda Tim’s Classic stop, with historical importance for understanding the thrust belt and thrust geometry. Part 1 of displacement gradient on a large thrust. Most importantly, toilet stop after all the Tim’s coffee and driving. Review of Mt Yamnuska from a different perspective; preview of drive through McConnell damage zone and change in HW stratigraphy.. Stop 4: Lac des Arcs Imbricate thrust sheets in the Front Ranges and Banff Formation. Stop 5: Canmore T-junction Observe complexities of sub-seismic-scale deformation in mechanically layered rocks in the footwall of a large thrust Stop 6: Canmore strike view of the Rundle thrust Exposed strike view analogous to a cut-away of a giant conventional Foothills hydrocarbon field such as Turner Valley. Cross faults within the thrust sheet offset potential reservoir units at sub-seismic scale. Cross faults are arguably part of a regional trend associated with deeper, basement-rooted NE-SW structures. Stop 7: Mt Norquay Overlook Stop 8: Bow Falls Fracture systems in the Vega Siltstone Mbr of the Triassic Sulphur Mtn Fm. This outcrop of Vega Member siltstone of the Sulphur Mtn Fm is considered equivalent to upper Montney Fm. We will focus on the outcrop adjacent to the steps up to the Falls overlook.

Added on 16 February, 2024

Workshop

Abu Dhabi, UAE

Monday, 27 May – Wednesday, 29 May 2024, 8:00 a.m.–5:00 p.m.

2nd Edition: Geological Process-Based Forward Modeling

In order to support the energy transition, optimizing exploration and production from complex stratigraphic-diagenetic conventional and unconventional plays remains highly important. At the same time, Carbon Capture and Storage (CCS) poses new technological challenges that will impact both the industry and academia for decades to come. This 2nd edition will present reviews and discuss technology developments in geological process-based forward modeling achieved during the last 2 years. New perspectives for future technology developments and implementation in industry workflows will be discussed and with the additional focus on CO₂ storage and other sustainability-related applications, the scope of the workshop will be considerably extended.

Added on 05 September, 2023

Webinar

Virtual Webinar

Thursday, 30 July 2020, 8:00 a.m.–10:00 a.m.

COVID’s Effect on the Energy Sector: From Crisis to Transformation

Hear panelists’ views on how COVID-19 has affected the legal, financial and technological sectors of the energy industry and what they expect for the future. Topics include energy markets, public policy, infrastructure, transportation, corporate culture, digitalization and the energy transition. Send questions and comments for speakers, then make your voice heard in virtual roundtables opening 10 minutes after the panel discussion. Forum registration is free of charge thanks to support from our sponsors. Forum Registration

Added on 01 July, 2020

Webinar By Catalina Luneburg

Virtual Webinar

Thursday, 13 August 2020, 11:00 a.m.–12:00 p.m.

Why it is Critical to Balance Your Interpretation

Geologic interpretations are the basis of most exploration workflows, whether building a 3-D framework, a geocellular model, or modeling HC basins and estimating HC reserves. All these workflows rely on the most realistic and accurate interpretation in order to produce high-confidence results. Join us to hear from Catalina Luneburg, founder and director of TerraEx Group and specialist in the validation of HC basins and structural geology modeling.

Added on 23 July, 2020

Webinar By Vitor Abreu

Virtual Webinar

Tuesday, 5 May 2020, 12:00 p.m.–1:00 p.m.

Sequence Stratigraphy: Past, Present and Future

Sequence stratigraphy is a method for stratigraphic interpretation, pioneered by Vail and colleagues in the mid 70’s, which explains the complex geometries that sediments create as they fill accommodation in response to changes in rates of sedimentation, subsidence, uplift and eustasy. This method was developed based on observations and concepts developed as early as in the 1800’s. Based on this strong scientific foundation, pioneer work from Caster, Sloss, Wheeler, Campbell, and Asquith established the basis for the methodology. These researchers established a new way to correlate stratigraphic units, demonstrating the time-transgressive nature of lithostratigraphic formations.

Added on 05 May, 2020

Online e-Symposium

Thursday, 24 October 2013, 12:00 a.m.–12:00 a.m.

Geomechanical Data from Petrophysical Logs

This e-symposium will be introducing signal processing techniques as a means to maximize extracting geomechanical data from petrophysical logs.

Added on 11 December, 2013

Online e-Symposium

Thursday, 8 November 2012, 12:00 a.m.–12:00 a.m.

Proppant Selection Drivers in Unconventional Resources

This talk will present a brief overview of proppants followed by a comprehensive discussion of the major considerations that are driving proppant selection in these plays.

Added on 11 December, 2013

Webinar By Kevin Hill,Peter Grant

Virtual Webinar

Thursday, 2 July 2020, 4:00 p.m.–5:00 p.m.

The Bight Basin, South Australia, One of the World's Largest Unexplored Deltas. Evolution and Prospectivity; Seismic, Structure, and Balanced Sections

Presented by Kevin C. Hill, Associate Professor, University of Melbourne Gravity modelling of Australia's southern margin reveals that the initial rift with Antarctica was beneath the current Ceduna Delta. A regional, high-quality seismic traverse from the coast to oceanic crust across the Bight Basin has been assembled and interpreted in detail, then balanced, restored, decompacted, and replaced at paleo-water depths. The Late Cretaceous Ceduna Delta developed above a Late Jurassic-Early Cretaceous rift basin in three stages punctuated by significant pulses of uplift and erosion across areas >100 km wide and with up to 1 km of erosion. The Cenomanian White Pointer delta prograded into deepening water and hence underwent gravitational collapse. This was terminated in the Santonian when the Antarctic margin was pulled out from below, thus supplying heat to a remnant thicker outer margin crust, causing doming and erosion. Importantly, this established the saucer-shaped geometry of the Ceduna Delta that persisted throughout its development, so that any hydrocarbons generated in the southern half of the basin would have migrated towards this outer margin high. The Tiger Formation was deposited in shallow water in a full rift basin prior to breakup, which was followed by regional thermal subsidence. The Hammerhead delta developed on the newly formed passive margin but was terminated by another pulse of uplift and erosion, perhaps associated with a change in plate motion at the end of the Cretaceous. The finite element modelling of this proposed tectonic evolution will test its validity and predict hydrocarbon generation and migration through time.

Added on 02 July, 2020

Online e-Symposium

Thursday, 23 July 2009, 12:00 a.m.–12:00 a.m.

3D Seismic Profiles of U.S. Shale Plays

As commodity prices have dropped, many shale plays have become uneconomical as statistical plays and have increasingly become recognized as geological plays demanding new insights from data.

Added on 02 December, 2013

Webinar By Juan Pablo Lovecchio

Virtual Webinar

Tuesday, 30 June 2020, 3:00 p.m.–4:00 p.m.

Rifting: How Breaking Continents Can Create Exploration Opportunities - Spanish Talk

El geocientífico visitante Juan Pablo Lovecchio revisa aspectos generales de la ruptura, grietas y formación pasiva de márgenes y evolución a través del tiempo, así como elementos del desarrollo del sistema petrolero.

Added on 30 June, 2020

Webinar By Arash Nazhad,Larry R. Davis,Sudhir Pai,Sunil Garg,Susan Nash

Virtual Webinar

Wednesday, 9 June 2021, 7:00 p.m.–8:30 p.m.

The New Way to Work

Join us for 'Pivoting 2021: The New Way to Work'. Panelists will discuss the way that work is done, both in operations and support roles, and discuss specific examples of technologies being used, and how they contribute to a safer, more efficient and profitable endeavor. Webinar will be presented via Zoom 7pm - 8:30pm CDT, 9 June 2021.

Added on 03 June, 2020

Webinar By Mark Tingay

Virtual Webinar

Thursday, 27 August 2020, 3:00 p.m.–4:00 p.m.

A Global Tour of Mud Volcanoes

There are over 300 known active onshore mud volcanoes globally, and many more offshore. Mud volcanoes are subsurface fluid escape features in which high pore pressures drive fluids, gases, and subsurface sediments to the surface. This talk will summarize mud volcanoes around the world and examine mud volcano plumbing systems and their link to petroleum systems.

Added on 23 July, 2020

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 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 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 Jacob Covault

Submarine-Channel Evolution From Seismic Stratigraphy & Numerical Models: Patterns and Predictions Revisited

Three-dimensional (3D) seismic-reflection surveys provide one of the most important data types for understanding subsurface depositional systems. Quantitative analysis is commonly restricted to geophysical interpretation of elastic properties of rocks in the subsurface. Wide availability of 3D seismic-reflection data and integration provide opportunities for quantitative analysis of subsurface stratigraphic sequences. Here, we integrate traditional seismic-stratigraphic interpretation with quantitative geomorphologic analysis and numerical modeling to explore new insights into submarine-channel evolution.

Request a visit from Jacob Covault!

Added on 20 July, 2022

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