Explorer Geophysical Corner

In last month’s Geophysical Corner `we described the different poststack impedance inversion methods that are available in our seismic industry. In poststack seismic inversion – where there is no mode conversion at normal incidence – it is purely acoustic. P-wave impedance is the only information that can be estimated from poststack inversion of P-wave data.

American Association of Petroleum Geologists (AAPG)
Latin America Blog

The AAPG Latin America Region and the Geological Society of Peru invite participation in “Increasing the Recovery Factor in Mature Oil and Gas Fields,” a Geosciences Technology Workshop (GTW) to be held October 15-16 in Lima, Peru.

American Association of Petroleum Geologists (AAPG)
Explorer Geophysical Corner

Seismic inversion for acoustic impedance is widely used in our industry today, mainly due to the ease and accuracy of interpretation of impedance data, but also because it allows an integrated approach to geological interpretation. This month’s column refers to “inversion” as the transformation of seismic amplitude data into acoustic impedance data.

American Association of Petroleum Geologists (AAPG)
Explorer Emphasis Article

When the initial Discovery Thinking forum debuted in San Antonio at the 2008 AAPG Annual Convention and Exhibition, it garnered high marks from attendees. Still, who could have known that this initial forum would be the harbinger of such an amazingly successful and long-running program?

American Association of Petroleum Geologists (AAPG)
Explorer Emphasis Article

AAPG bestows the Robert R. Berg Award in recognition of a singular achievement in petroleum geoscience research. Mark Zoback’s research has advanced the industry’s understanding and application of geomechanics, but he’s also done important work in other areas.

American Association of Petroleum Geologists (AAPG)
Africa Blog

The focus of the AAPG Angola Chapter's quarterly seminar was entitled GeoStreamers - The preferred broadband solution for Imaging and Characterization. Using dual-sensor streamer technology has not only allowed towing the streamer deeper in a quieter recording environment but has significantly increased the amount of reliably measured low frequency information without compromising the high frequencies and the AVO/AVA information.

American Association of Petroleum Geologists (AAPG)
Latin America Blog

Join us in Buenos Aires, Argentina 11-12 May for Extending Mature Fields' Life Cycles: The Role of New Technologies and Integrated Strategies, a Geosciences Technology Workshop organized in partnership with the Asociación Argentina de Geólogos y Geofísicos (AAGGP).

American Association of Petroleum Geologists (AAPG)
Explorer Geophysical Corner

The Anadarko Basin granite wash play has been considered difficult to interpret both geologically and geophysically. Consequently, the application of seismic attribute analysis to mid-continent washes has not been widely published.

American Association of Petroleum Geologists (AAPG)
Explorer Emphasis Article

With technical sessions designed to have cross-discipline appeal across the industry, Buford Pollett, chairman of the AAPG technical subcommittee for OTC, said this year’s topics were specifically chosen to attract a broad spectrum of professionals.

American Association of Petroleum Geologists (AAPG)
Events Blog

The Arctic Technology Conference (ATC) awarded its 2015 Spotlight on Arctic Technology Awards at the Comwell Convention Center (Bella Center) in Copenhagen, Denmark to two companies that have made innovative contributions to Arctic exploration and production.

American Association of Petroleum Geologists (AAPG)
Workshop
Tulsa, Oklahoma
Tuesday, 18 February Wednesday, 19 February 2025, 7:00 a.m.–5:00 p.m.

Join us for AAPG Orphan, Abandoned, Idle and Marginal Wells Conference 2025. This workshop will focus on orphan, abandoned, idle, and marginal wells and the business opportunities and technology associated with plugging and repurposing wells, reducing methane emissions, protecting water supplies, and extending the lives of marginal wells.

American Association of Petroleum Geologists (AAPG)
Field Seminar
Houston, Texas
Saturday, 1 February 2025, 8:30 a.m.–1:00 p.m.

Everyone in Houston lives within a few miles of a bayou. Some people think of them as permanent, but the bayous are constantly changing, especially during high water events like Hurricane Harvey. This trip is a 2.5 mile walk down a section of Buffalo Bayou where we will look at the archives of past storms and discuss what to do for future storms.

American Association of Petroleum Geologists (AAPG)
Short Course
Tulsa, Oklahoma
Thursday, 20 February 2025, 7:30 a.m.–4:00 p.m.

This introduction to methane monitoring, measurement, and quantification is for all those who would like to understand the requirements and regulations regarding methane emissions and to be able to design a measurement and monitoring solution, complete with the appropriate types of technologies, techniques, and safety protocols.

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

Physics is an essential component of geophysics but there is much that physics cannot know or address. 

Request a visit from John Castagna!

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)

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