Explorer Geophysical Corner

Coherence is an iconic attribute that finds its place in most workstation interpretation software packages. Much has been written about this attribute and the usefulness of its applications. The geologic feature imaging in three-dimensional seismic data volumes is done well by the coherence attribute as three-dimensionality is an essential ingredient of its computation.

American Association of Petroleum Geologists (AAPG)
Explorer Emphasis Article

Geomechanics has emerged as a major aspect of unconventional resource development, as demonstrated by its preeminence within this year’s URTeC program.

American Association of Petroleum Geologists (AAPG)
Explorer Geophysical Corner

Fault interpretation is an important step in seismic structural interpretation and has a bearing on the quantitative interpretation that may eventually be carried out. This requires the meaningful recognition of the faults within the proper geological context of the area. In Oklahoma, we see wrench faulting with strike-slip faults and other associated features.

American Association of Petroleum Geologists (AAPG)
Explorer Article

Susan Morrice is this year’s Norman H. Foster Outstanding Explorer.

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

I was pleased to serve as the organizer, general chair and creator of the AAPG Global Super Basins Leadership Conference. I will remember it as a highlight of my year as AAPG president and my entire career. I would like to share a few observations resulting from this conference.

American Association of Petroleum Geologists (AAPG)
Explorer Geophysical Corner

The revitalization of old basins by technological advances in producing unconventional reservoirs has justified the acquisition of modern, high-density 3-D seismic surveys of areas that were thought to be well understood. In Oklahoma, these surveys provide new images of the basement that was previously thought to be relatively homogeneous granite and rhyolite.

American Association of Petroleum Geologists (AAPG)
Explorer Historical Highlights

Imagination, an integrative approach to old-fashioned geology, plus advanced technologies played a leading role in the 2010-13 discovery of the Guama Field in the Plato Region of the Lower Magdalena Basin of Colombia.

American Association of Petroleum Geologists (AAPG)
Learn! Blog

The uptick in earthquakes corresponding with increased drilling and produced water disposal has been of great concern. Seeking scientific understanding of the reasons for increased seismicity and determining whether or not it has been induced by human activity has been a key focus. Welcome to an interview with Jeremy Boak, Ph.D., Director of the Oklahoma Geological Survey, which has demonstrated leadership in investigating induced seismicity.

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

CERA was a diverse and dynamic week. A record-breaking 4,500 CEO’s, leaders, energy ministers and global representatives from more than 70 countries attended the March 4-9 event to ponder the future of the industry. And this year, AAPG got to play an important role in this conversation.

American Association of Petroleum Geologists (AAPG)
Explorer Geophysical Corner

A common way to understand the relationship between seismic attributes and petrophysical properties is by the use of rock physics templates, or simply by cross-plotting well log-derived elastic attributes against a color-coded petrophysical property.

American Association of Petroleum Geologists (AAPG)
DL Abstract

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.

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Request a visit from Frank Peel!

American Association of Petroleum Geologists (AAPG)
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)
DL Abstract

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.

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Request a visit from Jacob Covault!

American Association of Petroleum Geologists (AAPG)

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