Explorer Geophysical Corner

This month we continue our look at 3-D seismic design.

American Association of Petroleum Geologists (AAPG)
Explorer Emphasis Article

A do-over is great in any game and when it's a seismic pass the new information in the Adaman Basin off India’s east coast unveils a fascinating tectonic history.

American Association of Petroleum Geologists (AAPG)
Explorer Emphasis Article

Hostile – but fragile: Seismic crews were challenged by the environment for an operation in the transition zone of Canada’s Mackenzie Delta region.

American Association of Petroleum Geologists (AAPG)
Explorer Emphasis Article

It’s been a 2-D seismic look at Greenland – until now. With a 3-D look is a commercial discovery eminent?

American Association of Petroleum Geologists (AAPG)
Explorer Emphasis Article

Proof positive: Nodal seismic technology lives up to its potential in the Gulf of Mexico.

American Association of Petroleum Geologists (AAPG)
Explorer Emphasis Article

With lower gas prices shale plays look more attractive resulting in increased seismic data to help find that liquid component.

American Association of Petroleum Geologists (AAPG)
Explorer Emphasis Article

The tide is rising: Seismic company officials say that the industry mood – buoyed largely by offshore projects – is looking up.

American Association of Petroleum Geologists (AAPG)
Explorer Article

Sweet sound of success: The spotlight turns to oil in the Bakken shale, and the focus was squarely on the sweet spots.

American Association of Petroleum Geologists (AAPG)
Explorer Geophysical Corner

Part 1 of 4: The geometry of onshore 3-D seismic recording grids is based on five parameters: source-station spacing, receiver-station spacing, source-line spacing, receiver-line spacing and recording swath size. 

American Association of Petroleum Geologists (AAPG)
Explorer Article

The onshore shale petroleum systems of eastern North America will be in the spotlight during the AAPG Eastern Section’s annual meeting, set Sept. 25-29 in Kalamazoo, Mich.

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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