Appendix 3 - Guidance on SCE groups and minimum performance assurance levels EP 2009-9009 Restricted 47 SCE group listing (continued) SCE goal Typical equipment types Description Minimum level SCE group SD007 SCE group title Subsea Isolation Valves (SSIVs) Subsea isolation valves to isolate a flammable or harmful pipeline inventory from the offshore Facilities. To isolate the pipeline inventory from the riser. To prevent additional pipeline inventory from causing escalation of an existing incident. (Only applicable offshore). At item level, i.e. per valve. SCE group SD008 SCE group title Drilling Well Control Equipment Well control equipment required during drilling in case of loss of control of the well resulting in a drilling blowout. To contain hydrocarbons and other hazardous substances, and to isolate the well in response to an upset/abnormal event. Drilling Blowout Preventers (BOP)s, BOP Hydraulic Control System, Choke manifold, Atmospheric and vacuum Degasser, Diverters, Kelly Cocks and Stab- in Valves, Well Kill System, Flow and Gas Detection (including Kick Detection) for Drilling Operations. At system level
