Explorer Geophysical Corner

To optimize subsurface geophysical interpretations, it is beneficial to place seismic attributes into the proper regional geological context; knowledge of regional geology may assist exploration/exploitation efforts in advance by high-grading attribute selection and attribute intersection for purposes of risk analysis.

American Association of Petroleum Geologists (AAPG)
Explorer Geophysical Corner

The primary application of multicomponent seismic has been imaging within gas clouds or beneath obscuring shallow gas zones. By reasonable estimate, approximately three-quarters of the industry's 4C surveys have targeted such geophysical problems.

American Association of Petroleum Geologists (AAPG)
Explorer Article

Who's got the last laugh now? A number of companies passed on the chance to explore the Buzzard prospect in the North Sea. One didn't.

American Association of Petroleum Geologists (AAPG)
Explorer Article

Symposium examines the need and the use of 3-D seismic in the Rocky Mountain region and highlights the need for more.

American Association of Petroleum Geologists (AAPG)
Explorer Article

AAPG President's testimony encourages better support for research in the U.S. Energy and Water Appropriations bill.

American Association of Petroleum Geologists (AAPG)
Explorer Geophysical Corner

Seismic imaging has changed radically over the last 80 years and has become a billion dollar business. Recording systems with thousands of channels and fleets of vibrators operating in tandem and helicopter-supported field operations are commonplace.

American Association of Petroleum Geologists (AAPG)
Explorer Article

Wave of the future? The coming era of full-wave imaging and digital seismic has improved success ratios but is North America behind?

American Association of Petroleum Geologists (AAPG)
Explorer Article

Like printing money in the field: Production just keeps going gangbusters in the Barnett shale play in north-central Texas.

American Association of Petroleum Geologists (AAPG)
Explorer Geophysical Corner

The realm of our seismic data typically has been horizontal distance and vertical time -- but now we are flooded with seismic data that is displayed in distance and depth. Seismic velocities originally came to us as a by-product of the process of stacking the data.

American Association of Petroleum Geologists (AAPG)
Explorer Emphasis Article

It used to be a 'gee whiz' extravagance, but 3-D computer visualization has grown up and become an everyday tool for virtually all areas of the petroleum business.

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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