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The Geophysical Society of Pittsburgh is a nonprofit organization dedicated to promoting the science of geophysics in the Appalachian Basin. We are an official section of the Society of Exploration Geophysics (SEG). Monthly meetings are generally held from September to May on the first Tuesday of each month at various locations around the Greater Pittsburgh area. However, be sure to check the event calendar as exceptions to this rule occur often. All interested parties are encouraged to attend.

2017 GSA Northeastern North-Central Joint Section Meeting in Pittsburgh, Pennsylvania

Abstract due date: 3 January 2017
Session: T21. Passive Seismic Monitoring of Brittle and Non-Brittle Deformation during the Stimulation of Unconventional Shale Reservoirs.
Session type: Oral
Date of meeting: 19-21 March 2017

Upcoming events

February 07, 2017 5:00 PM • Cefalo's, 428 Washington Ave. Carnegie, PA
March 07, 2017 5:00 PM • Cefalo's, 428 Washington Ave. Carnegie, PA
April 04, 2017 5:00 PM • Cefalo's, 428 Washington Ave. Carnegie, PA

January 10 - GSP Meeting

Cefalo's, Carnegie, PA


Comparison of Geomechanics of the Microseismic Response in Organic Shales of West Virginia and west Texas

Erich Zorn
Department of Energy


Abstract: Using an innovative workflow incorporating microseismic attributes and geomechanical well logs, we have defined major geomechanical drivers of microseismic expression to understand reservoir stimulation response in an engineering/geological context. Microseismic data from hydraulically fractured Marcellus wells in PA and WV, and a Wolfcamp well in the Midland Basin, TX, were sampled vertically through the event cloud, crossing shale and other lithologies. We focused our analysis on the organic shale, creating pseudo-logs of moment magnitude (Mw), seismogenic b-value, and event count. The vertical moving-average sampling of microseismic data DOWNLOAD FULL ABSTRACT

Bio: A Professional Geologist by education and practice, Erich spent 7 years in the engineering and consulting industry after earning his MS in Structural Geology. He returned to school in 2012 to earn a PhD with a focus in oil and gas geology and geophysics. His dissertation ended up being a study in the additional utility offered by microseismic data acquired during hydraulic fracturing in the Marcellus Shale, mainly focused upon integrating geology, seismology, geophysics, and mechanics to characterize reservoirs. During the course of his PhD, Erich completed two internships at Chevron ETC in Houston, working on fracture-induced anisotropy modelling, and received funding from the Department of Energy's National Energy Technology Laboratory, where he is currently a Post-Doctoral researcher. At NETL, Erich is involved in passive seismic monitoring of carbon sequestration, EOR, and hydraulic fracturing sites, and continues to work with microseismic data in search of new ways to squeeze out just a little bit more understanding.

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