HomeScience Discipline Sedimentology and Stratigraphy

Sedimentology and Stratigraphy

Explorer Geophysical Corner

With the increasing size of the seismic data volumes, machine learning applications have been found to accelerate the discrimination of seismic facies used in the identification of geologic patterns, defining stratigraphy and the direct indication of hydrocarbons. Many practitioners have demonstrated the application of dimensionality reduction tools such as principal component analysis and independent component analysis, or clustering techniques. Some of these are available in several commercial interpretation software packages.

Show more
American Association of Petroleum Geologists (AAPG)
Explorer Article

In the world of oil and gas, an increasing number of plays in stratigraphic traps are being made – in large part due to ever-evolving seismic technology. The Discovery Thinking forum at the annual IMAGE conference in August served to highlight some of these plays in offshore frontier basins and the role that geophysics played in their discovery. “We are seeing more giant stratigraphic fields, and seismic is the key,” said past AAPG President Charles A. Sternbach, chair of the Discovery Thinking forum. “And, we are seeing more oil found at greater depths. Unconventional plays are migrating outside of the Western Hemisphere.”

Show more
American Association of Petroleum Geologists (AAPG)
Explorer Historical Highlights

People often associate Utah with spectacular canyons cut into the Colorado Plateau, the state’s five national parks, incredible skiing in the beautiful mountains, the opportunity to wade around in the briny water of Great Salt Lake or hearing the Mormon Tabernacle Choir sing the “Hallelujah Chorus.” Visitors to the state, as well as most of its citizens, don’t think of Utah as a major producer of oil and gas. However, Utah has consistently ranked among the highest oil and gas producers in the United States.

Show more
American Association of Petroleum Geologists (AAPG)
Explorer Geophysical Corner

Deepwater turbidite reservoirs hold some of the largest petroleum reservoirs and thus are important exploration targets. By identifying and mapping the diverse architectural elements of the turbidite system and placing them within the correct geologic framework, a skilled interpreter can predict which components of the system are more likely sand or shale prone. Seismic data and seismic attributes also provide insight into the connectivity or compartmentalization of different parts of the reservoir which can be used to estimate the number of wells needed to drain the reservoir.

Show more
American Association of Petroleum Geologists (AAPG)
Explorer Foundation Update

Sometimes, challenging times call for dramatic objectives – and for a geoscience world still being redefined after years of upheaval, that’s exactly what the doctor ordered. This year’s new slate of AAPG Distinguished Lecturers has been determined, and in doing so, AAPG announces its own version of the Magnificent Seven: a diverse group of experts with international experience, specific knowledge and a hint of geoscience star power who have been selected to inform, improve and inspire geoscientists around the world.

Show more
American Association of Petroleum Geologists (AAPG)
Explorer President’s Column

Controversy can be a good thing, and sometimes, the more contentious things are, the better. Many great examples of this were discussed in my first geologic graduate course, the subject of which was “The History of the Science of Geology.” It was the controversy and debate itself that provided the greatest contribution to the science of geology – not the theories. Why is it important to recognize that controversy can be a good thing – important for AAPG and a good subject for my column in the EXPLORER? The answer is that controversy can also lead to the growth and improvement of a scientific society.

Show more
American Association of Petroleum Geologists (AAPG)
Explorer Article

NASA’s Perseverance rover is currently exploring the delta front of Jezero Crater on Mars. It has traveled 7.4 miles and drilled twelve core samples. For Katie Stack Morgan, geologist and deputy project scientist for the Perseverance Mars rover, the first close-up image of layered rocks at the base of Jezero Crater’s ancient river delta grabbed her imagination. “These are the layered rocks that we came for!” she said.

American Association of Petroleum Geologists (AAPG)
Explorer Article

Nestled in the southernmost Caribbean lies Trinidad and Tobago, a 5,130-square-kilometer twin-island republic, famous for its colorful Carnival celebrations, melodious steelpan drums, picturesque beaches and savory street foods. Trinidad and Tobago is known also for its longstanding presence in the energy sector, which is the primary economic driver for the country’s population of 1.4 million. T and T’s latest Deep Water Competitive Bidding Round launched in December and closed in June. The Ministry will announce bidding round results in September.

Show more
American Association of Petroleum Geologists (AAPG)
Explorer Director’s Corner

During the height of the pandemic, Society of Exploration Geophysicists Executive Director Jim White and I discussed how we could work better together – delivering an innovative conference for petroleum and energy geoscientists that also involved other geoscience disciplines focused on solving real world challenges. Our elected leaders at the time supported the vision for AAPG and SEG to create a new, joint annual meeting: the International Meeting for Applied Geoscience and Energy, or “IMAGE,” conducted in cooperation with SEPM. We’re eager and ready for IMAGE ’22 in Houston at the end of this month, and hope that you are, too.

Show more
American Association of Petroleum Geologists (AAPG)
Explorer Article

What makes John Dvorak’s “How the Mountains Grew: A New Geological History of North America” so special? Dvorak “connects the dots,” so to speak, between places of geologic wonder many geoscientists already know. The book provides context to well-known outcrops and fundamental geologic processes. There is still a lot to learn for those who have studied geology for many years.

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 2-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)
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)
Webinar
Virtual Webinar
Tuesday, 2 June 2020, 6:00 p.m.–7:00 p.m.

Visiting Geoscientist Xavier Moonan provides an overview of the destruction in the Los Iros area following the 6.9 magnitude earthquake that hit Trinidad and Tobago in 2018. His talk focuses on understanding the results from various post-earthquake studies conducted on the Los Iros, reviewing the theories developed to explain the origin and integrating datasets to provide an understanding of what transpired.

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

This e-symposium will provide information on which tools, processes, and procedures all geoscientists, engineers, and technical professionals working in shale plays need to understand and implement.

American Association of Petroleum Geologists (AAPG)
Webinar
Virtual Webinar
Tuesday, 14 April 2020, 4:00 p.m.–6:00 p.m.

The Upper Jurassic (Oxfordian) Smackover Formation is one of the most prolific oil and gas producers in the northeastern Gulf of Mexico coastal plain, where it deposited in a proximal carbonate ramp. This study is a comprehensive characterization of the depositional environment of the Smackover based on 3D seismic and well data from wells in the Vocation and Appleton oil fields located in the Conecuh and Manila Sub-basins in southwest Alabama.

Show more
American Association of Petroleum Geologists (AAPG)
Online e-Symposium
Thursday, 19 March 2015, 2:00 p.m.–3:00 p.m.

A detailed biostratigraphic analysis and stratigraphic framework of the Paleocene and Eocene Chicontepec Formation in the Tampico-Misantla basin, onshore eastern Mexico, was conducted using 33 wells.

American Association of Petroleum Geologists (AAPG)
Online e-Symposium
Thursday, 10 May 2012, 12:00 a.m.–12:00 a.m.

Recognition and Correlation of the Eagle Ford, Austin Formations in South Texas can be enhanced with High Resolution Biostratigraphy, fossil abundance peaks and Maximum Flooding Surfaces correlated to Upper Cretaceous sequence stratigraphic cycle chart after Gradstein, 2010.

American Association of Petroleum Geologists (AAPG)
Webinar
Virtual Webinar
Tuesday, 14 April 2020, 6:00 p.m.–8:00 p.m.

La Formación Smackover del Jurásico Superior (Oxfordiano) es una de las productoras de petróleo y gas más prolíficas de la llanura costera del noreste del Golfo de México, depositada en una rampa de carbonato proximal. Este estudio es una caracterización integral del ambiente de depositación de la Formación Smackover basada en datos sísmicos 3D y de pozos en los campos Vocation y Appleton situados en las subcuencas de Conecuh y Manila, en el suroeste de Alabama.

Show more
American Association of Petroleum Geologists (AAPG)
Online e-Symposium
Thursday, 29 April 2010, 12:00 a.m.–12:00 a.m.

This presentation will focus on the seismic stratigraphic and seismic geomorphologic expression of deep-water deposits, including both reservoir and non-reservoir facies.

American Association of Petroleum Geologists (AAPG)
Online e-Symposium
Thursday, 30 August 2012, 12:00 a.m.–12:00 a.m.

The entire Middle Pennsylvanian–to–top Precambrian basement (500 m) interval was cored in early 2011 in the BEREXCO Wellington KGS #1-32 well in Wellington Field, Sumner County, KS.

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

There are approximately 1,000 oil and gas fields in the world that have been classified as 'giant,' containing more than 500 million barrels of recoverable oil and /or 3 trillion cubic feet of gas.

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.

Show more

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.

Show more

Request a visit from Keith Gerdes!

American Association of Petroleum Geologists (AAPG)

Related Interests

See Also ...