control umbilicals
TRANSCRIPT
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LECC 2011
CONTROL UMBILICALS
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Subsea installations
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Template
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Control functions
• Control/monitoring from surfaceinstallation (or shore)
• Static and/or dynamic
• Valve operations
•
Downhole monitoring• MEG injection
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Typical makeup
• Hydraulic lines to power valve actuators
• Power / signal electric cables
• Fibre optic cables
• Chemical injection lines
• Armouring for dynamic applications
•
External sheath• Sealed or free-flooding
• Trenched and buried
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Structure
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Record breaker?
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Control from platform
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Subsea Control Module
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Control from floating installation
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Failure modes
•Damage during manufacture
• UTH damage / jumper cables
• Leakage in hydraulic lines
• Contamination of hydraulic oil
• Installation damage including ploughing
• Water ingress to electrical components
• Loss of insulation resistance (Cables)
• Interface with surface installation
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Future Focus
• Increasing water depth
• Increasing complexity of subseadevelopments
• Fault tracing
• Advanced repair methods
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Charles Taylor adjusting
INTERNATIONAL LOSS ADJUSTERSPresented by Martin Oinn
Charles Taylor energy88 Leadenhall StreetLondon EC3A 3BA
Telephone - +44 (0) 20 7623 1819Facsimile - +44 (0) 20 7623 1817Direct Dial - +44 (0) 20 7015 2018