SCE group SD003
SCE group title High Integrity Pressure Protection Systems (HIPPS)
HIPPS provide high integrity instrumented over pressurisation protection for pipelines, equipment or piping systems that do not have sufficient mechanical protection for the maximum envisaged fluid pressure.
To protect against over- pressurisation of gas transportation pipeline systems.
At system level
SCE group SD004
SCE group title Operational Well Isolation
Well Isolation system including all components with a role to isolate the well, or annulus, following a hazardous event. To isolate the well in response to an upset/abnormal event.
Xmas Trees including actuated and manual isolation valves – (UMGV, PWV, Swab, LMGV,
etc.), Sub Surface Safety Valves SSSVs, actuated gas lift isolation valves and injection check valves/storm chokes
At item level, i.e. per well
SCE group SD006
SCE group title Process Emergency Shutdown Valves (ESDVs)
Process ESDVs to automatically isolate a flammable or hazardous inventory in a Facility, either onshore or offshore.
To shutdown the process in response to a hazardous situation and also to prevent a major incident.
At item level, i.e. per valve
SCE group SD005
SCE group title Pipeline Isolation Valves
Pipeline Isolation Valves to isolate a flammable or harmful pipeline inventory from the onshore or offshore
Facilities or public areas.
To reduce the inventory released in the event of a Major Hazard release.
At item level, i.e. per isolation valve Pipeline ESD valves, plant isolation or safety valves, pipeline block valves, pipeline check or non-return valves Pneumatic/hydraulic/electrical actuators and control circuits
Appendix 3 - Guidance on SCE groups and minimum performance assurance levels EP 2009-9009 Restricted 47 SCE group listing (continued)Share with your friends: |
