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Sedimentology and Stratigraphy

Asia Pacific Blog

AAPG Asia Pacific is proud to announce the first two sessions of AAPG Asia Pacific Presents, a collection of online presentations being offered free of charge.

American Association of Petroleum Geologists (AAPG)
Explorer Article

Some 257 people gathered at the beautiful new Hilton Hotel in Port Moresby, Papua New Guinea in the last week of February 2020 to attend the first AAPG/EAGE Papua New Guinea Petroleum Geoscience Conference and Exhibition. The theme for the conference was, “PNG’s Oil and Gas Industry Maturing Through Exploration Development and Production.”

American Association of Petroleum Geologists (AAPG)
Explorer Article

Joshua Rosenfeld’s article in the April EXPLORER issue’s Historical Highlights provides an interesting compilation of observations selected to support an unproven hypothesis: that the large influx of Paleogene Wilcox sandstones in the Gulf of Mexico can be linked to a major evaporative drawdown of the basin, loosely aligned with and possibly triggering the Paleocene-Eocene thermal event. We offer our observations based on decades of oil industry experience working the Wilcox play, more than 55 peer- reviewed academic papers and one book on Gulf of Mexico sedimentary basin.

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American Association of Petroleum Geologists (AAPG)
Asia Pacific Blog

A report on a field trip taken by the UPES AAPG Student Chapter on 1 February 2020 along the Raipur - Maldevta Section of the eastern Doon Valley

American Association of Petroleum Geologists (AAPG)
Explorer Article

The Rocky Mountain Section of AAPG is pleased to announce the winners of its Presentation Awards for the section’s 2019 Annual Conference which was held in Cheyenne, Wyo. The Presentation Awards are given to those who present the best technical papers at the annual meeting. Authors gave more than 125 oral and poster presentations on the geology of the Rocky Mountain region at the Cheyenne meeting. Judging on technical merit and presentation determined the winners.

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American Association of Petroleum Geologists (AAPG)
Explorer Historical Highlights

It all started in 2002, when Unocal revealed that its Trident-1 well had found 400 meters of 70-percent net Lower Wilcox Formation sand in the deepwater Gulf of Mexico, about 400 kilometers beyond the contemporaneous shelf break offshore south Texas. Art Berman and I gazed at a GOM activity map and pondered how that amount of sand could have been deposited so far out into the basin. Our working hypothesis was that this sand deposit was due to a drop in base level, but we also knew that the worldwide sea level was not in decline at that time. A log of the nearby Shell Great White well shows that this sand deposition began suddenly and ended suddenly. This was also puzzling, since we were trained to expect gradational coarsening-upward bedding during regression and fining-upward during transgression, rather than the sharp contacts we were seeing. Sudden avulsion of a major river in a deltaic environment could produce something like this, but how could it happen far beyond the shelf edge?

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American Association of Petroleum Geologists (AAPG)
Explorer Article

The history of the Permian Basin reads like a detective novel in reverse. Geoscientists know how the story turns out. They’re trying to determine exactly how it started. Robert Stern, a professor of geosciences at the University of Texas at Dallas, thinks he and a group of fellow scientists have solved one important part of the mystery. Stern. “We know oil is limited by the nutrients. Oil just doesn’t suddenly appear,” he said. That raises the question, “How did all those nutrients get there?”

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American Association of Petroleum Geologists (AAPG)
Latin America Blog

The Geology and Hydrocarbon Potential of the Circum-Gulf of Mexico Pre-Salt Section convened 101 participants came from 9 countries from 52 companies and organizations

American Association of Petroleum Geologists (AAPG)
Explorer Article

Energy sustainability and environmental responsibility are major pillars for the future of the energy industry. They will also be important themes for the upcoming Pacific Section Annual Meeting April 4-8 in Oxnard, Calif. The meeting’s overall theme is “2020 Vision: Producing the Future.

American Association of Petroleum Geologists (AAPG)
Explorer Article

AAPG Honorary Member and University of Oklahoma geoscience professor Roger Slatt speaks to the vital yet dwindling role of research consortia in advancing education and scientific advancement.

American Association of Petroleum Geologists (AAPG)
Workshop
Khobar, Saudi Arabia
Monday, 27 November Wednesday, 29 November 2023, 8:00 a.m.–5:00 p.m.

Mark your calendars and save the date to attend the 5th edition of the AAPG Siliciclastic Reservoirs of the Middle East GTW which will be held for the first time in Al-Khobar, Saudi Arabia from 27-29 November 2023. We look forward to having you on board for the new edition of these popular series.

American Association of Petroleum Geologists (AAPG)
Workshop
Khobar, Saudi Arabia
Monday, 9 October Wednesday, 11 October 2023, 8:00 a.m.–5:00 p.m.

Join us for the 4th Edition of: "Stratigraphic Traps of the Middle East" workshop. The workshop will be hosted by AAPG in Al Khobar, Saudi Arabia 9-11 October 2023.

American Association of Petroleum Geologists (AAPG)
Workshop
Khobar, Saudi Arabia
Monday, 8 May Wednesday, 10 May 2023, 8:00 a.m.–5:00 p.m.

“Wait! There is a short cut. Turn right from here”. That’s probably the sound of an electric current bypassing the resistive hydrocarbons, in a maze or network of porous media, when traveling from transmitter to receiver. This workshop will serve the participants need with the up to date advancements in describing and characterizing low resistivity and low contrast pay, and eventually, maximize resources.

American Association of Petroleum Geologists (AAPG)
Short Course
Bridgetown, Barbados
Wednesday, 1 March Thursday, 2 March 2023, 8:00 a.m.–5:00 p.m.

This 2-day, in-person course describes the range and variability in deepwater sedimentary systems and equips participants to build predictive models of subsurface geology for more successful exploration and development. A primary goal of this course is to enable subsurface teams to more effectively characterize and rank deepwater/offshore projects on a regional and global scale.

American Association of Petroleum Geologists (AAPG)
Workshop
Lisbon, Portugal
Wednesday, 21 June Thursday, 22 June 2023, 8:00 a.m.–5:00 p.m.

This 3-day conference brings together diverse experts working on modern and ancient turbidite, MTDs, contourite and hybrid/mixed systems in order to improve the present-day knowledge, models and predictive power.

American Association of Petroleum Geologists (AAPG)
Field Seminar
Lisbon, Portugal
Tuesday, 20 June 2023, 8:00 a.m.–5:00 p.m.

Come along on this 1-day field seminar and tour outcrops in the Serra de Montejunto, just north of Lisbon and on the coast from Porto Novo to Paimogo. Instructors: Ricardo Pereira, PARTEX Oil and Gas & Instituto Dom Luiz Gil Machado, ChronSurveys Lda & Instituto Dom Luiz Fees: To be determined Limit: 20 Participants Includes: Hotel Ground Transportation Snacks and Refreshments Lunch and Dinner Guidebook Departure Time/Location 20 June 2023 8:30am SANA Metropolitan Hotel Note:Transportation to start point is not included in the costs of this trip. Please bring clothing for hot day time temperatures (sun hat/ sun glasses/ sun cream etc.). Participants must wear suitable and comfortable light trekking shoes. Aims To gain or increase an understanding of the tectono-sedimentary processes of continental extension and rifting supported by outcrop observations, with focus on deep-depositional marine systems. Discuss implications for prospective petroleum systems. Promote debate and nourish new insights between attendants. About the Field Trip The Lusitanian Basin records the proximal events of syn- to post rift evolution of the hyper-extended West Iberian Margin, showing some outstanding examples of the combined tectono-stratigraphic depositional systems. Here, the Late Jurassic reveals diverse aspects of mixed marine depositional systems including not only submarine fans and turbidites, but also the build-up of carbonate reefs and shoreface to fluvial clastic sequences. Throughout the field trip the different depositional aspects can be observed in detail to demonstrate how such depositional systems can vary in time and space. Observation of these outcrops allows a better understanding on how deep-water depositional systems can change within a sub-basin and help improving the understanding of reservoir properties.

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American Association of Petroleum Geologists (AAPG)
Webinar
Virtual Webinar
Wednesday, 9 June 2021, 7:00 p.m.–8:30 p.m.

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.

American Association of Petroleum Geologists (AAPG)
Webinar
Virtual Webinar
Saturday, 3 October 2020, 8:00 a.m.–9:00 a.m.

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

American Association of Petroleum Geologists (AAPG)
Online e-Symposium
Thursday, 13 December 2012, 12:00 a.m.–12:00 a.m.

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

American Association of Petroleum Geologists (AAPG)
Webinar
Virtual Webinar
Friday, 11 December 2020, 11:30 a.m.–12:30 p.m.

In a world moving to net-zero emissions during the COVID-driven oil price collapse, there remain important scientific and business opportunities for geoscientists, particularly those with expertise in stratigraphy, sedimentology, reservoir geology and hydrocarbon production. In this webinar, Dr. Julio Friedmann, senior research scholar, Center on Global Energy Policy, Columbia University discusses the challenges this community faces which are not scientific or technical, but rather involve shifts in business model, policy and global market trends. Webinar presented via Zoom on 11 December 2020 at 11:30 am CST (UTC-6).

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American Association of Petroleum Geologists (AAPG)
Online e-Symposium
Thursday, 7 November 2013, 12:00 a.m.–12:00 a.m.

This e-symposium presentation places the interpretation of deep-water turbidites discernible in 3-D seismic inversion data within a geological context.

American Association of Petroleum Geologists (AAPG)
Online Certificate Course
Tuesday, 1 January 2013, 12:00 a.m.–1:00 a.m.

Wind Energy Basics is an online course that enables participants to review, analyze, and evaluate opportunities in the rapidly expanding market for wind energy.

American Association of Petroleum Geologists (AAPG)
Online e-Symposium
Thursday, 17 February 2011, 12:00 p.m.–1:00 p.m.

This presentation is designed for exploration/production geologists and geological managers or reservoir engineers.

American Association of Petroleum Geologists (AAPG)
Online e-Symposium
Thursday, 19 August 2010, 12:00 a.m.–12:00 a.m.

This presentation will show where there are cases of missing sections, but none of them can be attributed to normal faulting.

American Association of Petroleum Geologists (AAPG)
American Association of Petroleum Geologists (AAPG)
Webinar
Virtual Webinar
Tuesday, 5 May 2020, 12:00 p.m.–1:00 p.m.

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.

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American Association of Petroleum Geologists (AAPG)
DL Abstract

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.

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Request a visit from Tao Sun!

American Association of Petroleum Geologists (AAPG)
VG Abstract

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.

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Request a visit from Keith Gerdes!

American Association of Petroleum Geologists (AAPG)

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