Explorer Geophysical Corner

This two-part series describes how Sinopec’s local operating company, Southwest Petroleum Branch (SWPB), utilized full-wave seismic data to improve production from a fractured tight-gas reservoir in XinChang Field, Sichuan Province, China. 

American Association of Petroleum Geologists (AAPG)
Explorer Emphasis Article

Egypt clearly is hot in the international arena, but the scene at its neighbor to the west – Libya – appears close to being equally spicy.

American Association of Petroleum Geologists (AAPG)
Explorer Emphasis Article

Small players, big deals: Independents are becoming increasingly important in Africa’s energy picture.

American Association of Petroleum Geologists (AAPG)
Explorer Article

Victoria’s Secret (no, not that one) is reminding people that what they see at first is not always what they get later.

American Association of Petroleum Geologists (AAPG)
Explorer Geophysical Corner

Last month in this space we showed that in areas where poor-quality seismic data are acquired across a high-velocity surface with surface-based geophones, good-quality reflection events are created at deep interfaces below this high-velocity surface layer. 

American Association of Petroleum Geologists (AAPG)
Explorer Article

Student Chapter awards and awards for student technical presentations given at the AAPG Annual Convention and Exhibition in San Antonio have been announced by the Convention Organizing and Student Chapters committees.

American Association of Petroleum Geologists (AAPG)
Explorer Article

Three-dimensional seismic data can be invaluable with regard to mitigating risk associated with the presence of reservoir, source and seal facies.

American Association of Petroleum Geologists (AAPG)
Explorer Article

Watch this: Non-stop advances in visualization technology are giving geologists a front row seat for everything from initial project framing to final project review.

American Association of Petroleum Geologists (AAPG)
Explorer Emphasis Article

And now, the rest of the story: Production from some big-name field developments in the Gulf of Mexico is finally about to begin.

American Association of Petroleum Geologists (AAPG)
Explorer Article

On the road again – AAPG’s 2008-09 Distinguished Lecture program gets off to a fast start this month with the announcement of 10 domestic speakers.

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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