Explorer Geophysical Corner

Coherence and curvature attribute computations are usually carried out on stacked seismic data volumes to delineate faults, flexures and large fractures. If the vertically-aligned parallel fractures in the subsurface are filled with fluid, or weakly cemented, the P-wave velocity across the fractures will be slower than that parallel to the fractures. These differences give rise to a velocity variation with azimuth. Because impedance is the product of density and velocity, such fractures also give rise to amplitude variation with offset.

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American Association of Petroleum Geologists (AAPG)
Explorer Article

It was only expected to produce for 30 years. But now, 40 years later, BP looks forward to another 40 years of production in Alaska’s Prudhoe Bay.

American Association of Petroleum Geologists (AAPG)
Explorer Article

The Energy Minerals Division celebrated its 25th Anniversary in 2002. The Division emphasized to the AAPG membership that it was AAPG’s center of activity on energy minerals and unconventional energy resources. EMD originally focused primarily on coal, uranium, geothermal energy, oil shales and tar sands. However, its focus expanded and in 2002, EMD’s most active unconventional resource areas were coalbed methane, gas hydrates, and unconventional energy economics.

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American Association of Petroleum Geologists (AAPG)
Explorer Emphasis Article

Mountains and beaches. Colonial cities, farming communities, indigenous villages. Central Eastern Mexico is full of diverse cultures and landscapes. It is also home to the Tampico-Misantla super basin, a 25,000-square-kilometer area that has produced oil since 1869.

American Association of Petroleum Geologists (AAPG)
Learn! Blog

Groundwater resources are valuable resources, especially in arid climates such as in South Africa where in a dry year they may receive no rain at all. Welcome to an interview with Surina Esterhuyse, who speaks to us about the special challenges facing water scarce countries and her particular experience in South Africa.

American Association of Petroleum Geologists (AAPG)
Asia Pacific Blog

AAPG Asia Pacific will present our third learning event in Indonesia; after Bali and Bandung. This Geosciences Technology Workshop (GTW) will be held from 7-8 August 2019 in Bogor, Greater Jakarta. The theme is 'The Art of Hydrocarbon Prediction: Managing Uncertainties' and the committee is very enthusiastic about the program. In September, some members of the committee met with PT Pertamina,to seek their support for this event. Helmed by an advisory board and a technical committee, this event is currently welcoming abstracts before 15 January. Visit this link for more information on the event. https://www.aapg.org/global/asiapacific/events/workshop/ispreview/true/articleid/49102#152582144-program Please contact [email protected] for enquiries.

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American Association of Petroleum Geologists (AAPG)
Learn! Blog

Enhanced Oil Recovery with CO2 is an important market, but sometimes there is a problem with securing CO2 supplies. Welcome to an interview with Gerald Blount, whose company has a new CO2 EOR solution. Gerald participated in AAPG’s U-Pitch at URTeC, which promotes and helps commercialize innovations and new technologies.

American Association of Petroleum Geologists (AAPG)
Learn! Blog

Cutting edge AI technologies suc as Depe Learning, Machine Learning, and Reinforcement Learning are transforming the way that geoscientists work. Welcome to an interview with Naser Tamimi, NeuDax. NeuDax participated in AAPG’s U-Pitch at URTeC, which promotes and helps commercialize innovations and new technologies.

American Association of Petroleum Geologists (AAPG)
Learn! Blog

Welcome to an interview with Scott Crist, Chairman and CEO of Infrastructure Networks (INET). INET participated in AAPG’s U-Pitch at URTeC, which promotes and helps commercialize innovations and new technologies.

American Association of Petroleum Geologists (AAPG)
EMD Blog

On September 26, 2018, the U.S. Bureau of Land Management (BLM) issued their Record of Decision (ROD) to approve a 14-mile long “energy corridor” across public lands in Uintah County, Utah to support development of a planned 27,000 acre South Project oil shale mine to be developed by Estonia-based Enefit American Oil. The ROD followed a six-year environmental study and preparation of the Final Environmental Impact Study issued by the BLM following extensive public comment.

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American Association of Petroleum Geologists (AAPG)
Workshop
Virtual Workshop
Tuesday, 8 March Wednesday, 9 March 2022, 8:00 a.m.–5:00 p.m.

This two-day virtual conference aims to bring together industrial and academic persons to present, explore and develop approaches that will benefit both sectors in the future. The virtual conference will focus on current techniques, the challenges and future solutions in understanding the Triassic stratigraphy of the North Sea, Norwegian Sea, West of Shetland, Atlantic margins, and northern Europe.

American Association of Petroleum Geologists (AAPG)
Online e-Symposium
Thursday, 17 March 2011, 12:00 a.m.–12:00 a.m.

This e-symposium will provide information on which tools, processes, and procedures all geoscientists, engineers, and technical professionals working in shale plays need to understand and implement.

American Association of Petroleum Geologists (AAPG)
Online e-Symposium
Tuesday, 9 September 2014, 2:00 p.m.–3:00 p.m.

Water cut is a big factor in gauging the success of horizontal drilling in the Mississippi Lime Play (MLP). The contributing factors are related in part to the spectrum of producing lithofacies and reservoir quality encountered that varies laterally and vertically, sometimes dramatically. 

American Association of Petroleum Geologists (AAPG)
Online e-Symposium
Thursday, 28 July 2011, 12:00 a.m.–12:00 a.m.

This presentation discusses one operator’s approach to fully integrate data captured in the Marcellus Shale in order to optimize horizontal well performance.

American Association of Petroleum Geologists (AAPG)
VG Abstract

Microseismicity induced by hydraulic fracture stimulation of a horizontal well was mapped with a near-surface buried array. Distinct linear trends of events were not parallel to the direction of fast shear wave polarization measured in the reservoir with a crossed-dipole anisotropy tool. Analysis of core from a nearby well revealed numerous calcite-filled fractures that did not induce shear wave polarization, but did significantly impact the failure behavior of the reservoir rock during the stimulation treatment. Hydraulic fracture simulation with DFN modeling and source mechanism analysis supports the interpretation of reactivated existing fractures rather than the formation of hydraulically-induced tensile fractures.

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Request a visit from Sherilyn Williams-Stroud!

American Association of Petroleum Geologists (AAPG)
VG Abstract

Hydraulic fracturing has been around for decades. This talk describes some of the first applications of the technology, how it developed over time, and our current understanding of its impacts with some discussion of both water and earthquake hazards.

Request a visit from Sherilyn Williams-Stroud!

American Association of Petroleum Geologists (AAPG)
VG Abstract

This is a less-technical education topic. It can be condensed to an hour or given as 2 two-hour sessions. It stresses selected controversial aspects of fracking that touch some combination of environment and economics and includes a short video of how fracking is done.

Request a visit from David Weinberg!

American Association of Petroleum Geologists (AAPG)
VG Abstract

Analysis of microseismicity induced by hydraulic fracture stimulation in the Marcellus Shale shows changes in stress state for different zones of failure. During the treatment, shear failure occurs on both the J1 and J2 fracture orientations in response to different maximum stress orientations, indicating localized changes in the orientation during the treatment. Reactivation of a fault near the wellbore is associated with failure mechanisms with a higher volumetric component, indicating possible inflation of faults and fractures by the introduction of the slurry. Quantification of the stress conditions that are associated with inflation could potentially be used to optimize the stimulation by identifying which fractures will preferentially take on slurry volume.

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Request a visit from Sherilyn Williams-Stroud!

American Association of Petroleum Geologists (AAPG)

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