Brian Grayson, Weatherford global manager of emerging technologies for drilling optimization services, speaks with Drilling Contractor editorial coordinator Katherine Scott at the 2012 SPE Annual Technical Conference & Exhibition, 8-10 October in San Antonio, Texas, about how not using closed-loop drilling is like driving with your car lights off, about the principle of mass balance and how an operation is 470 times less likely to experience a blowout by using closed-loop drilling.




