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Oklahoma History Center

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    • 22 Oct 2018
    • 11:30 AM - 1:00 PM
    Register

    Hydraulic-Fracture Triggered Earthquakes in Oklahoma


    Jacob Walter

    Oklahoma Geological Survey


    Abstract

    In December 2016, the Oklahoma Corporation Commission (OCC) instituted a “stoplight” protocol for mitigating seismicity possibly associated with hydraulic fracturing during production well completion.  The OCC is able to track completion activities due to a new program, implemented in October 2016, requiring operators to file at least 48 hours notice that they intend to complete a well. The Oklahoma Geological Survey (OGS) monitors seismicity throughout the state, utilizing permanent and temporary seismometers operated by OGS and other agencies, while maintaining an earthquake catalog. The catalog is complete down to M2.2 since mid-2014, throughout most of the state and OGS continues to install additional temporary seismometers across the western portion of the state. Over the last year, out of greater than 3,000 completions we find only a small percentage (< 5%) of hydraulic fracturing well stimulations produce a regionally-detected earthquake on the state network through a simple spatio-temporal correlation (5 km and 10 days since start). There are several characteristics of these events that challenge current mitigation practices including earthquakes that continue after flowback has begun and relatively more seismically-active faults that may be activated by several different well completions at different leases over several months. We present our latest findings related to seismologically discriminating between earthquakes directly triggered by hydraulic fracturing and others that may be related to background tectonic activity or wastewater injection. The findings have implications for regulatory and corporate oversight of safe hydraulic fractures.


    Biography

    Dr. Walter, a Geophysicist at the Oklahoma Geological Survey, has been the State Seismologist since November 2016. Prior to joining the state survey, he was a research scientist at the Institute for Geophysics at the University of Texas at Austin. Walter’s research interests include ice sheet and glacier dynamics, tectonic tremor and slow slip, earthquakes, and seismic triggering of earthquakes. Walter earned his BA in geology at the University of Colorado at Boulder and his PhD in Earth Sciences at the University of California, Santa Cruz.

    • 26 Nov 2018
    • 11:30 AM - 1:00 PM
    Registration is closed

    To Be Announced

    • 17 Dec 2018
    • 5:30 PM - 9:00 PM
    Registration is closed

    To Be Announced

    • 28 Jan 2019
    • 11:30 AM - 1:00 PM
    Registration is closed

    To Be Announced

    • 25 Feb 2019
    • 11:30 AM - 1:00 PM
    Registration is closed

    To Be Announced

    • 25 Feb 2019
    • 11:30 AM - 7:00 PM
    Registration is closed

    To Be Announced

    • 15 Apr 2019
    • 11:30 AM - 1:00 PM
    Registration is closed

    To Be Announced

    • 20 May 2019
    • 5:30 PM - 9:00 PM
    Registration is closed

    To Be Announced

Past events

18 Sep 2018 2018 GSOC Annual Golf Tournament
17 Sep 2018 SEG Honorary Lecture - September Luncheon
21 May 2018 2018 Annual Spouse and Awards Night
16 Apr 2018 April Technical Luncheon
20 Mar 2018 2018 Continuing Education and Shrimp Boil
26 Feb 2018 February Technical Luncheon
22 Jan 2018 January Technical Luncheon
18 Dec 2017 2017 Holiday Party
06 Nov 2017 SEG Honorary Lecturer Mirko van der Baan
24 Oct 2017 2017 GSOC Annual Golf Tournament
23 Oct 2017 October luncheon
18 Sep 2017 September luncheon: Dr. Mark Mack Sigma3
22 May 2017 2017 Annual Spouse and Awards Night
24 Apr 2017 April Seminar and Luncheon
21 Mar 2017 2017 Continuing Education and Shrimp Boil
27 Feb 2017 February Seminar and Luncheon
23 Jan 2017 January Seminar and Luncheon
15 Dec 2016 2016 Holiday Party
24 Oct 2016 October Seminar and Luncheon
13 Sep 2016 2016 GSOC Annual Golf Tournament
12 Sep 2016 September Seminar and Luncheon
23 May 2016 Annual Spouse and Awards Night
09 May 2016 Continuing Education and Shrimp Boil
11 Apr 2016 SEG Distinguished Lecturer Joe Dellinger
28 Mar 2016 March Seminar and Luncheon
22 Feb 2016 February Seminar: PSDM Case Study, Dr. Morgan Brown
25 Jan 2016 GSOC Seminar and Lunch Featuring Bob Hardage
14 Dec 2015 Holiday Party
16 Nov 2015 GSOC November Luncheon. Clint Barefoot, Eagleford Case Study
26 Oct 2015 GSOC October Luncheon. Paul Constance, Multicomponent Surface Seismic and VSP for Reservoir Characterization of the Mississippian
15 Sep 2015 GSOC Annual Golf Tournament
14 Sep 2015 GSOC September Luncheon. SEG Honorary Lecturer, Dan Whitmore
19 May 2015 Spouse and Awards Night
28 Apr 2015 Continuing Education and Shrimp Boil
16 Apr 2015 SEG Distinguished Lecturer Dr. Jean Virieux
23 Mar 2015 March Technical Seminar and Luncheon
01 Jun 1990 1990 Annual Meeting

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Geophysical Society of Oklahoma City is a 501(c)3 non-profit organization. 

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