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HomeScience Discipline Sedimentology and Stratigraphy

Sedimentology and Stratigraphy

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)
Explorer Emphasis Article

It is one of the most remote places on the planet and home to the largest sand desert in the world. Virtually uninhabited and underexplored, the Rub’ al Khali basin, known as “the Empty Quarter” in Arabic, covers more than a fourth of the southeastern part of the Saudi Arabian peninsula. While the area has been explored in the past, perhaps most notably by Max Steineke, the American geologist known for making the first oil discovery in Saudi Arabia in 1938, and then publicly again in the early 2000s by international oil companies, the basin appears to be of increasing interest once more.

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American Association of Petroleum Geologists (AAPG)
Middle East Blog

After two successful editions, the AAPG Carbonate Reservoirs of the Middle East GTW came back the region for a third round. The event took place from 28-29 January 2020 at the Westin Abu Dhabi Golf Resort & Spa. The workshop attracted 94 attendees from 30 different companies and 10 different countries.

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

This seminar focuses on the role geoscience leaders and mentors play in retaining top talent.

American Association of Petroleum Geologists (AAPG)
Webinar
Virtual Webinar
Tuesday, 14 July 2020, 11:00 a.m.–12:00 p.m.

The Santos Basin is an excellent example of how much oil is kept in remote sites, just waiting to be found by bold explorationists with the will and resources needed to find them. Join Flávio Feijó to for a presentation of the history and potential for future discoveries in the Santos Basin Webinar will be presented via Zoom on Tuesday 14 July 2020 at 11am CDT (UMT-6). Register Now at Zoom

American Association of Petroleum Geologists (AAPG)
Online e-Symposium
Tuesday, 2 December 2014, 2:00 p.m.–3:00 p.m.

The gas transport in organic-rich shales involves different length-scales, from organic and inorganic pores to macro- and macrofractures. In order to upscale the fluid transport from nanoscale (flow through nanopores) to larger scales (to micro- and macrofractures), multicontinuum methodology is planned to be used.

American Association of Petroleum Geologists (AAPG)
Online e-Symposium
Friday, 20 January 2012, 12:00 a.m.–12:00 a.m.

The Eagle Ford Shale in South Texas is one of the more exciting shale plays in the United States at the current time.

American Association of Petroleum Geologists (AAPG)
Webinar
Virtual Webinar
Monday, 8 June 2020, 12:00 p.m.–1:00 p.m.

A geophysicist with extensive worldwide experience in exploration, appraisal and development settings gained at BG group, Alan Foum will talk about future energy demand modelling in terms of oil, gas and electricity including renewables with his presentation 'Petroleum Perspectives, Past Present and Future'

American Association of Petroleum Geologists (AAPG)
Online e-Symposium
Thursday, 26 September 2013, 12:00 a.m.–12:00 a.m.

The presentation will discuss key reservoir information and how to develop a predictive pressure model.

American Association of Petroleum Geologists (AAPG)
Online e-Symposium
Thursday, 28 July 2011, 12:00 a.m.–12:00 a.m.

This presentation discusses one operator’s approach to fully integrate data captured in the Marcellus Shale in order to optimize horizontal well performance.

American Association of Petroleum Geologists (AAPG)
Online e-Symposium
Thursday, 29 September 2011, 12:00 a.m.–12:00 a.m.

This study will focus in the combination of λρ – μρ inversion with clustering analysis techniques in order to discriminate brittle zones in the Barnett Shale.

American Association of Petroleum Geologists (AAPG)
Online e-Symposium
Thursday, 23 April 2015, 2:00 p.m.–3:00 p.m.

Recent laboratory studies have revealed previously unknown behaviors in shale gas which unlock secrets of permeability and sweet spots in shale gas reservoirs. The presentation presents the findings and also goes into detail about how the new information can be applied in order to potentially improve recovery in reservoirs.

American Association of Petroleum Geologists (AAPG)
Webinar
Virtual Webinar
Thursday, 25 June 2020, 8:00 a.m.–9:00 a.m.

Panelists will discuss current unconventional resource activities in North America, including key plays that remain competitive and potential for future growth. They also will address the key challenges for unconventional resources to stay competitive in the global market: maintaining cashflow, reducing expenditures, improving capital and production efficiencies and managing resources. Virtual Forum to be presented via Zoom.

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)
DL Abstract

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!

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)

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