Explorer Geophysical Corner

Numerous examples have circulated among the geophysical community that illustrate how some geologic targets can be better seen by constraining the reflected seismic wavefield to a particular narrow range of frequencies.

American Association of Petroleum Geologists (AAPG)
Explorer Article

AAPG’s Distinguished Lecture program is reloaded and already off to a fast start for a season that will send speakers around the world, in some cases, to places never before traveled by the program.

American Association of Petroleum Geologists (AAPG)
Explorer Emphasis Article

Production totals in the Gulf of Mexico, thanks largely to the deepwater activity, is forecast to continue to rise. Now, about activity in the eastern GOM ...

American Association of Petroleum Geologists (AAPG)
Explorer Geophysical Corner

Vertical seismic profiling (VSP) is a measurement procedure in which a seismic sensor is lowered to a sequence of selected depths in a well by wireline, and at each of the downhole receiver stations that sensor then records the downgoing and upgoing seismic wavefields produced by a surface-positioned source.

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

As part of the focus on providing the best science, AAPG is reviewing all of our products and services against the needs of the membership.

American Association of Petroleum Geologists (AAPG)
Explorer Emphasis Article

A lot of work must take place separately for geologists and geophysicists before they can synchronize their data and come up with that “bigger picture.”

American Association of Petroleum Geologists (AAPG)
Explorer Geophysical Corner

Here we illustrate another application of that 2008 reflectivity calculation that aids in quantifying numerous geological features – with the emphasis here being on thin beds.

American Association of Petroleum Geologists (AAPG)
Explorer Article

Behind the scenes: You’ve heard about a new report that points to the Arctic as having great potential for hydrocarbon resources. But have you heard how the report was made?

American Association of Petroleum Geologists (AAPG)
Explorer Geophysical Corner

In this month's Geophysical Corner the authors illustrate the use of a technique known as corendering to assist fault interpretations in a structurally complex area.

American Association of Petroleum Geologists (AAPG)
Explorer Emphasis Article

Rocky Mountain high: AAPG turns the spotlight on Denver for its 94th Annual Convention and Exhibition, which starts June 7 at the Colorado Convention Center.

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)
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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