§ Mr. DoranTo ask the Secretary of State for Energy which pipelines on the United Kingdom continental shelf have subsea emergency shutdown valves installed; which pipelines have been identified as requiring subsea emergency shutdown valves; which companies operate these pipelines; and when he proposes to introduce regulations making such valves mandatory.
§ Mr. Peter MorrisonSubsea isolation systems are fitted to the following pipelines:
- Murchison 6" Northern Leg gas gathering line
- Esmond to shore 24" gas pipeline
- Claymore to Piper Wye 16" oil pipeline
- Claymore to Tartan 24" oil pipeline
- Claymore to AH 001 14" oil pipeline
- Claymore to shore 30" oil pipeline
- 2 x Claymore to Scapa 10" oil pipelines
- 2 x Claymore to Scapa 6" test pipelines
- 6 x Claymore to Scapa 3" gas lift pipelines
- Brent A 20" Northern Leg gas gathering line
- Fulmar to shore 20" gas pipeline
- Tartan to Piper Wye 18" gas pipeline
- Tartan to AH 001 8" gas pipeline
- Tartan to Claymore 24" oil pipeline
- Tartan to Highlander 12" oil pipeline
- Tartan to Highlander 8" test pipeline
- Tartan to Highlander 8" gas lift pipeline
- Tartan to Petronella 8"oil pipeline
- MCP-01 to Piper Wye 18" oil pipeline.
Subsea isolation systems have also been fitted to the oil and gas pipeline risers of the following floating production installations:
- Transworld 58
- Deepsea Pioneer
- Northsea Pioneer
- AH 001
- Balmoral 16/21
- Buchan "A".
After continuing our consultations on requirements for subsea isolation systems I hope to make regulations early in 1991. In the meantime pipeline-operating companies, in discussion with my Department, have identified at least a further 25 pipelines for which they propose to fit subsea isolation systems. Other pipelines are under consideration.