Energy Policy Blog

The StatesFirst working group on induced seismicity just released its report,” Potential Injection-Induced Seismicity Associated with Oil & Gas Development: A Primer on Technical and Regulatory Considerations Informing Risk Management and Mitigation.” The report describes the causes of and ways to prevent induced earthquakes. It also looks at the interaction between regulators and the public, and the report includes case studies of how states have responded to instances of suspected induced seismicity in California, Oklahoma, Ohio, Illinois, and Colorado.

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American Association of Petroleum Geologists (AAPG)
Explorer Article

The chief geologist for a Canadian regulatory agency says the group is working to assess potential risks by better understanding the full geologic framework in the development of oil sands and heavy oil in the province of Alberta.

American Association of Petroleum Geologists (AAPG)
Explorer Emphasis Article

Feisty. Funny. Determined. Competitive. Brilliant. Generous. The words used to describe Harris in advance of her posthumously receiving the AAPG Harrison Schmitt Award at the upcoming ACE in Denver.

American Association of Petroleum Geologists (AAPG)
Explorer Division Column EMD

In virtually all regions of sustained production, the industry is steadily improving in situ recovery methods and reducing environmental impacts of bitumen and heavy oil production, especially those associated with surface mining.

American Association of Petroleum Geologists (AAPG)
Explorer Article

Robert Gray is a man on a mission. Gray, an AAPG Grover E. Murray Distinguished Geology Educator Award winner in 2014, said he is tired of lower-level geologic study at community and city college levels being treated like the Rodney Dangerfield of academia.

American Association of Petroleum Geologists (AAPG)
Explorer Article

Recent debates have flared in the western United States over federal versus state ownership of public lands. Bills concerning the transfer of some public lands to states have been introduced in the U.S. Congress and many western state legislatures, though none have become law.

American Association of Petroleum Geologists (AAPG)
Explorer Foundation Update

It has a new name, a new energy and a new lineup of experts, all primed to spread geoscience knowledge around the world. “It” is AAPG’s newly named Global Distinguished Lecture Program – emphasis on the “global” – which dates back to 1941 but continues to be the Association’s flagship initiative for offering the latest in geologic science to AAPG affiliated geological societies and universities.

American Association of Petroleum Geologists (AAPG)
American Association of Petroleum Geologists (AAPG)
American Association of Petroleum Geologists (AAPG)
Explorer Article

The Distinguished Lecture program, funded in part by the AAPG Foundation, is the Association’s flagship initiative for spreading the latest in science, technology and professional information.

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

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)
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)

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