Explorer Geophysical Corner

Phase decomposition is a novel technique that decomposes a composite seismic signal into different phase components, which can improve reservoir characterization. The technique is particularly useful in those areas where thin-bed interference causes the phase of the input seismic response to differ from the phase of the embedded wavelet in the data.

American Association of Petroleum Geologists (AAPG)
Explorer Article

When the International Petroleum Technology Conference comes to Saudi Arabia in February, the technical program will include a significant look at both unconventional oil and gas and conventional tight oil in the Middle East. Those are two different concepts in the region and the distinctions are important. The Middle East holds a large conventional tight oil resource, now emerging as a serious focus for development. With so much recent attention devoted to unconventional resources, conventional tight oil could be considered an overlooked sibling.

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American Association of Petroleum Geologists (AAPG)
Explorer Article

Thanks to continuing advances in reservoir characterization, technology and innovative thinking, many oil fields around the globe have “grown larger” in recent decades. John Sneider, president of Sneider Exploration Inc., documented examples of mature field growth 20 years ago and recently revisited the topic to focus on mature giant fields. This updated analysis is detailed in chapter 4 of the new AAPG Memoir 125: “Giant Fields of the Decade: 2010 – 2020.”

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American Association of Petroleum Geologists (AAPG)
Explorer Geophysical Corner

The estimated hydrocarbon reserves around the world, when produced, can keep us going for the next several decades. But scientific records and our own experiences are enough evidence that climate change is indeed happening. Addressing it requires energy extraction from non-fossil fuels. One such resource is the natural heat of the Earth, or geothermal energy.

American Association of Petroleum Geologists (AAPG)
Explorer Article

Coming Soon to a Theater Near You: AAPG Member Glen Penfield’s life-changing discovery of the Chicxulub asteroid crater is the subject of a new movie.

American Association of Petroleum Geologists (AAPG)
Explorer Geophysical Corner

Fault interpretation on seismic data has always been a laborious task, especially for large 3-D seismic volumes. Whereas horizon autopicking has advanced significantly during the past three decades, automated seismic fault interpretation lags behind. Fortunately, recent applications of artificial intelligence (deep learning) processes for identifying faults provide significant promise for the future.

American Association of Petroleum Geologists (AAPG)
Explorer Article

The eastern Great Basin of western Utah has long been known as a high heat flow region containing young volcanic rocks and several producing hydrothermal systems. The Utah FORGE Enhanced Geothermal Systems project seeks to advance technology to extract the heat in the huge volumes of hot rock underground, identified or strongly suspected, that do not currently possess adequate permeability. Resolving the underlying mechanisms that have heated such volumes should not only help characterize the magnitude of an individual resource but also create a pathfinder for discovering other systems, both EGS and hydrothermal.

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American Association of Petroleum Geologists (AAPG)
Explorer Geophysical Corner

Seismic inversion for acoustic impedance is widely used in our industry today, mainly due to the ease and accuracy of interpretation of impedance data, but also because it allows an integrated approach to geological interpretation. In a series of three prior articles of Geophysical Corner, the application of the different methods for transformation of stacked, prestack and multicomponent seismic data into impedance data were described. In this month’s column we revisit one of the methods, namely colored inversion, to describe in detail the methodology entailed and its application to a seismic dataset from Denmark.

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American Association of Petroleum Geologists (AAPG)
Explorer Geophysical Corner

As geoscientists, we are predisposed to associative thinking. Trained for pattern recognition by our education and experiences, we have learned to recognize familiar elements in a new dataset and integrate those pieces of information into a subsurface geological model. However, this learning system is usually biased and most of the time we are unaware of it. With the increasingly common use of machine learning in our workflows to bolster human interpretation, we must become increasingly aware of our biases, so that they they can be minimized as we train the algorithms. Herein is a case study and bias discussion from the Ceará Basin in Brazil, where deep convolutional neural networks are used to aid in the petrophysical analysis and volumetric assessment of a potential reservoir.

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American Association of Petroleum Geologists (AAPG)
Explorer Historical Highlights

To most outsiders in the 1950s, the Buraimi Affair was a passing curiosity, a faraway squabble about territorial rights in a remote corner of southeast Arabia known as the Buraimi Oasis. The British government backed its protégés, Abu Dhabi and Oman, against Saudi Arabia, while the United States government took a mediating role. However, as the Time magazine report suggested, there was another aspect to the dispute: it was rumoured that Buraimi was “floating on a pool of oil.”

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American Association of Petroleum Geologists (AAPG)
Short Course
Bogotá , Colombia
Thursday, 10 November Friday, 11 November 2022, 8:00 a.m.–4:00 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
Muscat, Oman
Monday, 16 January Wednesday, 18 January 2023, 8:00 a.m.–5:00 p.m.

The sedimentary basins of the Middle East have been proved to contain vast hydrocarbon reserves, sourced by some of the most prolific petroleum systems in the world. This is the product of a range of factors, not least the long-lived, relative stability of the Arabian Plate and the presence of multiple, prolific organic source rocks. This workshop will address these and other subjects and to discuss the main challenges present in our current understanding of petroleum systems in the Middle East.

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American Association of Petroleum Geologists (AAPG)
Workshop
Lviv, Ukraine
Thursday, 21 September Friday, 22 September 2023, 8:00 a.m.–5:00 p.m.

Join us for a workshop where experts will  explore the Carpathian foreland and the Dnieper-Donetsk rift basins with a focus not only on hydrocarbons, but the utilization of geothermal resources, hydrogen exploration and CCUS.

American Association of Petroleum Geologists (AAPG)
Workshop
Lisbon, Portugal
Thursday, 18 May Friday, 19 May 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)
Workshop
Manama, Bahrain
Monday, 26 September Wednesday, 28 September 2022, 8:00 a.m.–5:00 p.m.

The workshop aims to provide a comprehensive understanding of the source rocks in the Middle East. The technical program is developed in a way that coves the depositional environments and transport processes, basin modeling and detailed rock characterisation including geochemisty, geomechanics and petrophysics.

American Association of Petroleum Geologists (AAPG)
Online e-Symposium
Tuesday, 25 January 2011, 12:00 a.m.–12:00 a.m.

This esymposium takes a close look at workflows associated with resource plays, and analyzes where integration must occur between disciplines, data, and workflows at all phases of the process.

American Association of Petroleum Geologists (AAPG)
Online e-Symposium
Friday, 1 November 2013, 12:00 a.m.–1:00 a.m.

This presentation demonstrates how 3D seismic data will contribute significantly to the understanding of the Marcellus.

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 e-Symposium
Friday, 27 March 2009, 12:00 a.m.–12:00 a.m.

Join two GIS/geoscience experts Scott Sires and Gerry Bartz as they use information from the Teapot Dome Field in Wyoming (DOE/RMOTC program).

American Association of Petroleum Geologists (AAPG)
Online e-Symposium
Thursday, 24 October 2013, 12:00 a.m.–12:00 a.m.

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

American Association of Petroleum Geologists (AAPG)
Webinar
Virtual Webinar
Thursday, 21 May 2020, 9:00 p.m.–10:00 p.m.

Henry W. Posamentier discusses the application of 3-D seismic stratigraphic analyses to the mitigation of risk associated with lithology prediction prior to drilling – workflows and techniques. Principles and workflows of seismic stratigraphy and seismic geomorphology will be discussed and numerous examples will be shown from a variety of different depositional settings.

American Association of Petroleum Geologists (AAPG)
Online e-Symposium
Thursday, 22 October 2009, 12:00 a.m.–12:00 a.m.

This course can help you gain the ability to describe the complex and highly variable reservoirs, which are typified by complex internal heterogeneity.

American Association of Petroleum Geologists (AAPG)
Online e-Symposium
Thursday, 25 March 2010, 12:00 a.m.–12:00 a.m.

The presentation describes a well established fracture modeling workflow that uses a standard 3D seismic, conventional logs, image logs and data from one core to build predictive 3D fracture models that are validated with blind wells.

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, 23 June 2020, 2:00 p.m.–3:00 p.m.

Visiting Geoscientist Mauricio Guizada provides an overview of general structural geology of the Andes, with a focus on the Central Andes. His talk covers topics related to onshore exploration, G&G methods in exploration and risk analysis. Join Mauricio Guizada via Zoom on June 23 at 4pm CDT.

American Association of Petroleum Geologists (AAPG)
Assistant Professor of Hydrogeology

The Boone Pickens School of Geology at Oklahoma State University invites applications for a tenure- track, assistant professor position in physical hydrogeology. The anticipated start date is August 1, 2023. The successful applicant must have a Ph.D. degree in geosciences or a related field at the time of appointment. Postdoctoral experience is preferred. The School encourages applications from candidates from underrepresented groups in the geosciences.

VG Abstract

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!

American Association of Petroleum Geologists (AAPG)

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