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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

martin.oinn@charlestayloradj.com