Fatigue is a significant risk in Schlumberger operations. Sleep loss due to demanding hours of operation and limited time between assignments increases the likelihood of fatigue.
Fatigue impairs alertness, often without you realizing it. In fact, sleepiness or fatigue can produce performance problems similar to those caused by alcohol.
Staying awake for over 18 hours will impair a person’s performance as much as having a blood alcohol concentration of .05% or higher, above the legal limit for driving in many countries.