Jonas Vingegaard is out of the Tour de France after being involved in a crash at the end of the 15th stage. Vingegaard suffered a fractured collarbone and multiple abrasions in the crash and will ...

Exploiting geological variation within shale deposits and timing in the initiation of hydraulic fracturing, this paper finds that allowing fracing leads to sharp increases in oil and gas recovery and ...

During hydraulic fracturing well stimulation, one of the costliest setbacks that can occur is a screen out, a condition in which pump pressure levels unexpectedly rise rapidly in excess of the ...