The audit was conducted on 23 and 24 February 2022.


The objective of the audit was to monitor how Schlumberger follows up working hours such that hazardous conditions are avoided, safe operations are ensured and the risk of failure, hazard and accident situations is reduced.


Four non-conformities were identified, concerning:

  • Breaches of the working hours provisions
  • System for recording working hours
  • Inadequate use of data
  • Insufficient manning

In addition, two improvement points were identified, concerning:

  • Weaknesses in Schlumberger’s mapping
  • Weaknesses in regulatory competence and interpretation

What happens next?

We have asked Schlumberger to report on how the non-conformities will be addressed. We have also asked for an assessment of the improvement points observed. The reply deadline is set at 19 August 2022.