Explorer Emphasis Article

Urban development: Seismic crews found creative ways to complete a successful operation in the sensitive Long Beach/Signal Hill oil field. 

American Association of Petroleum Geologists (AAPG)
Explorer Article

Thinking outside the box: One surprise at the recent summer NAPE was a linear driver free-piston engine that can turn watered-out wells into long-life electrical power producers.

American Association of Petroleum Geologists (AAPG)
Explorer Article

Bracket busting? Ten geology departments from around the world are set for this year’s Imperial Barrel Awards competition in Denver. Let the games begin.

American Association of Petroleum Geologists (AAPG)
Explorer Policy Watch

In January 2007 California Gov. Arnold Schwarzenegger issued an executive order announcing that California would develop a low carbon fuel standard (LCFS). The purpose of the LCFS is to reduce by at least 10 percent the carbon intensity of fuels used for passenger vehicles in California by 2020. The governor’s action put the state into the familiar position of crafting unique and occasionally controversial environmental policy. And there is an old saying about these policies:

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American Association of Petroleum Geologists (AAPG)
Explorer Emphasis Article

More, more, more: New downhole technology is proving its worth in the Los Angeles Basin by squeezing new oil out of an old field.

American Association of Petroleum Geologists (AAPG)
Explorer Emphasis Article

Coming of age: Borehole imaging technology, which started its evolvement from dip-meter technology in the 1980s, has advanced to become an increasingly effective tool.

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

Gas shales have advanced to an economic gas play since the year 2000 thanks to a combination of high gas prices, shale reservoir characterization and advances in drilling and completion technology.

American Association of Petroleum Geologists (AAPG)
Explorer Article

Bye, bye drilling ban, hello offshore exploration activities. The question is, where is the best U.S. offshore potential?

American Association of Petroleum Geologists (AAPG)
Explorer Article

Editor’s note: AAPG’s Workforce Retention Survey targets degreed, women geoscientists of all ages and at every stage of their careers who have had industry work experience at one time or another. The survey closes on Sept. 30.

American Association of Petroleum Geologists (AAPG)
Explorer Regions and Sections

Twelve university teams from around the world competed in the finals of AAPG’s Imperial Barrel Award program at the AAPG Annual Convention and Exhibition in San Antonio.

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

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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