On November 19, 2015,
the Oklahoma Corporation Commission (OCC) announced
a plan to end operations at two disposal wells located in the Cherokee-Carmen
area after a magnitude 4.7 earthquake hit northern Oklahoma this day. The
Commission also requested a wastewater injection volume reduction of 41% for 23
other disposal wells.
According to a media
report, it was one of the strongest earthquakes recorded
since the magnitude 5.6 earthquake that hit Oklahoma in 2011.
On November 16, 2015,
the OCC also required
a volume reduction of 25% for all wells located within 3 to 6 miles of the
magnitude 4.3 earthquake’s epicenter that struck the Fairview area on November
15.
On November 10, 2015,
the OCC announced another
volume-reduction plan in the Medford area due to recent
seismic activities in this region. The Commission imposed operational changes
to disposal wells operated by Sandridge Exploration Production, LLC, and
Kirkpatrick Oil Company, Inc. According to the plan, all wells located within 3
miles of the recent earthquake activity must reduce 50% of its injection volume,
and by 25% when located within 3 to 6 miles of the activity.
Written by Chloe Marie - Research Fellow
11/20/2015
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