Karlis Muelenbachs, a pioneer in tracking stray gases
from wellbores and a professor at the University of Alberta, called the 2013 «internal» OGC report «sound» but incomplete.
«The existing criteria for an induced earthquake do not allow earthquakes associated with the well activity to occur this far away
from the wellbore,» said Katie Keranen, assistant professor of geophysics at Cornell University, who led the study of the Jones earthquake swarm.
This will not however be an indication that flow
from the wellbore has been permanently stopped.
Not exact matches
Carlson says the only part of a well that matters is the horizontal leg, which extends
from the vertical
wellbore toward the actual gas.
The fractures that originate
from these points can be laterally extensive, and shale producers are studying ways to avoid them
from hitting their other
wellbores.