That was my thought. One of the devices just happened to be at the shear point when the gas bubble burped. Sometimes $hit just happens.
I once saw a work over rig try to test a squeeze job for over a week without success because the test pressure stipulated by the engineer EXCEEDED THE PRESSURE AT WHICH THE FORMATION FRACTURED!
When I finally got tired of listening to all this on the radio and “suggested” that the well logs be consulted before the next attempt it worked all of a sudden!
FOX had an environmental scientist on a few minutes ago who actually gave a pretty encouraging asessment of the spill. He said the potential of a great disaster is there but doesn’t think panic is warranted.