Explorer Geophysical Corner

A detailed investigation of seismic amplitudes can yield information pertaining to lithological variation in subsurface sedimentary rock formations and the existence and extent of some hydrocarbon zones.

American Association of Petroleum Geologists (AAPG)
Explorer Emphasis Article

Nuisance? For a long time the Tuscaloosa Marine Shale was considered an irritating target for drillers – but time and economic dynamics have a way of changing perspectives.

American Association of Petroleum Geologists (AAPG)
Explorer Emphasis Article

Closest of trends: Geoscientists experienced a huge “aha!” moment that started with the realization that Pennsylvania’s Marcellus Shale and Texas’ Eagle Ford Shale have a lot in common.

American Association of Petroleum Geologists (AAPG)
Explorer Emphasis Article

Back for more: Operators found new success when they took another look at Louisiana’s Wilcox play.

American Association of Petroleum Geologists (AAPG)
Explorer Spotlight On…

The Caribbean Basins Tectonics Hydrocarbon project is now in the stretch drive of its planned triple-phase program.

American Association of Petroleum Geologists (AAPG)
Explorer Geophysical Corner

The discrimination of fluid content and lithology in a reservoir is an important characterization that has a bearing on reservoir development and its management.

American Association of Petroleum Geologists (AAPG)
Explorer Emphasis Article

Look again: The North Sumatra Basin, a world-class petroleum province since the late 19th century, is getting a 21st century reboot.

American Association of Petroleum Geologists (AAPG)
Explorer Historical Highlights

Historical Highlights looks at the origin of the Caribbean, a geological puzzle. Just exactly where did it come from?

American Association of Petroleum Geologists (AAPG)
Explorer Geophysical Corner

In the rough terrain of overthrust settings, 2-D seismic data continues to be a standard tool for subsurface mapping – and not only because of economic reasons. Two-D and 3-D seismic surveys are complementary in land environments, because each data type has its own strength and weakness.

American Association of Petroleum Geologists (AAPG)
Explorer Article

Spreading the word: Nine speakers have been selected for AAPG’s prestigious Distinguished Lecture program for the 2012-13 North American tours.

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)
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

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)

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