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

Once again, Hollywood is on the offensive against the oil industry – a documentary titled “Greedy Lying Bastards: Big Oil’s Dirty Secret” is scheduled for release this month.

American Association of Petroleum Geologists (AAPG)
Explorer Article

It don’t come easy: The oil rich Monterey Shale has proved to be the biggest conventional resource provider in California, and it promises even more – but the formation’s complex geology is just as intimidating as its potential is huge.

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

Monterey Shale oil development will happen – but it could take a decade, according to AAPG member Fred Aminzadeh.

American Association of Petroleum Geologists (AAPG)
Explorer Article

California dreaming: Some people see the Monterey Shale, and think “oil.” Others, however, see a slippery challenge.

American Association of Petroleum Geologists (AAPG)
Explorer Article

While attending Stanford University in 1932 Tom Dibblee may not have known he would become a legend and the most famous field geologist in California (or have a Wikipedia page!), but he did know he wanted to be a field geologist like those at the U.S. Geological Survey.

American Association of Petroleum Geologists (AAPG)
Explorer Article

What would you give for an early detection system for earthquakes? Detecting those first waves of compression could help.

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

For more than 100 years, shale oil has referred to the product of pyroly­sis of oil shale, whereas oil shale refers to organic rich (kerogen) rock that has never reached the oil window.

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)
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)

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