Process Safety×Subsurface
Subsurface in Operating Integrity
Work within the barriers
What sits here
Plant is operated inside its safe operating envelope, and work is controlled so that barriers are not bypassed, defeated or overloaded. When a barrier is overridden, the override is authorised and controlled. When prevention fails, emergency response mitigates the consequences.
Example documents, by tier
Standard 1
- Sleeve Movement StandardIn 1 of 3 operator registersAsset · addsAlso in IOGP 510 · 02 Policies and StandardsAlso in EI PSM · 08 Operating manuals and proceduresNot safety case critical
Process, procedure, work instruction 2
- Well Interventions Delivery ProcessIn 2 of 3 operator registersCompany-wideAlso in IOGP 510 · 05 Risk Assessment and ControlAlso in EI PSM · 08 Operating manuals and proceduresNot safety case critical
- Well Testing ProcedureIn 1 of 3 operator registersAsset · addsAlso in IOGP 510 · 08 Execution of ActivitiesAlso in EI PSM · 08 Operating manuals and proceduresNot safety case critical