5 weeks 1 day
Submitted by Susan Gebbels on Thu, 12/20/2012 - 11:39
During a tour of the drill floor I came across this drillhead. They are attached to the end of the drill string which is lowered down to the seafloor. Each is used for around 40 hours before the teeth wear down, we have a potentially 46 days operational time. That's a lot of drillheads!