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James R. “Jim Bob” Moffett, co-chairman of the board at McMoRan Exploration, likes to say he cut his teeth on the onshore Miocene.
Seismic reflection data come alive when displayed with shaded relief.
Every now and then I get the opportunity to talk about the AAPG, and in particular the Division of Environmental Geosciences – but until now I have not had the opportunity to discuss the DEG with such a wide audience.
Chat room redux: New technology and research efforts are making it possible for seismic data to “talk” to seismic data. And the stories they can tell…
At last, a reason to thank your kids for playing video games: PlayStation 3 technology is elevating seismic imaging to a whole new level of refinement.
The eye of the beholder: Seismic data interpretations are notoriously varied – and sometimes just plain wrong. But now a team of Scottish geoscientists is shedding some light on what often goes wrong – and why.
Experts have spoken about its oil potential for decades. Finally, Iraq is primed to fulfill its promise – and its opportunities aren’t just for the super-big players, either.
Everyone has heard of a bright spot – a high seismic amplitude caused by hydrocarbon. Much oil and gas has been found by drilling anomalous bright reflections, particularly in younger sediments.
It seemed like a good idea at the time, but … what ever happened to exploration in these places?
A strong, integrated and active group of explorationists is still recognized as the most effective way to add value to a company by what is called 'organic growth,' which is very much a long-term activity.
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!
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.
Request a visit from Jacob Covault!
Physics is an essential component of geophysics but there is much that physics cannot know or address.
Request a visit from John Castagna!
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.
Request a visit from Frank Peel!