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Fatigue Management


INTRODUCTION
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.

What is fatigue?
Fatigue is the lack of energy resulting from prolonged, extensive mental or physical activity, exposure to environmental stresses, or from insufficient sleep or body-clock disturbances. The fatigue from sleep loss is the most dangerous of these in terms of its impact on mental performance.
Fatigue affects driving performance and other tasks in which vigilance is important, especially outside of “normal” operating hours: 07:00 – 18:00.

Signs of fatigue
Fidgeting - Rubbing eyes -Repeated yawning -Staring blankly-Blinking-Difficulty keeping eyes open-Head nodding

Causes of fatigue
Schlumberger employees, like most throughout the oilfield services industry, are accustomed to long hours, frequent changes of schedule and long hours of travel from one assignment to the next – all factors that add real excitement to our work, but that also can lead to profound fatigue.

So we can summarize the main causes of fatigue in:

  • Accustomed to long hours
  • Frequent changes of schedule
  • Long hours of travel
  • Practical countermeasures for fatigue:

  • Taking a pre-work nap
  • Avoiding vigilance tasks during times of low alertness
  • Varying your job routine
  • Taking breaks
  • Adjusting the work environment
  • Managing your nutritional intake
  • How do we manage fatigue?
    Right and responsibility of every person to stop the job for any quality, health, safety or environmental hazard.

  • Health Hub
  • Driving Hub
  • QHSE Training and Certification Catalog
  • QUEST
  • Fatigue Management pocket guide
  • Summary

  • Be familiar with your location’s Fatigue Management Plan.
  • Agree with your manager on an optimum work schedule that allows for ample rest Breaks and sleep between shifts.
  • Complete your assigned levels of fatigue management training.
  • Report any fatigue-related incidents in Quest or directly to your manager, regardless of how minor they may seem.
  • Consider how your level of alertness can affect your safety and the safety of others when you conduct a vigilance task.
  • Know and use the many tools available to support your fatigue-management efforts – ask your line manager or QHSE manager for help.
  • Keep a copy of these guidelines with you while working irregular shifts.
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