rhdhv vessel logistics & crew transfer.ppt
TRANSCRIPT
Vessel Logistics & Crew Transfer
25th September 2013
Chris Lawson Director CDM/Health & Safety Consultancy
Windfarm Logistics
What are the challenges ahead?
What are we familiar with?
What is different?
Deep water
• Data availability & collation• Vessel selection and availability• Foundation solution• Construction methodology• Diving limitations/Use of ROVs
Far shore
• Turbine size & efficiency• Technological advancement• Transit time• Vessel capability & availability• Port Facility/Place of Safety• Working Windows/Stand-down• Operational Maintenance
Anchor pattern
Photo courtesy of Osprey Ltd
Supply-chain logistics
Offshore crane barge
400te Jack-up Crane, c £130k/day, Options agreement, 3 months
Comparable Onshore Facility
350te Mobile Crane, c £6-7k/day, CPA Hire Contract, 2 weeks
Guidance for the Selection of Jack-ups
Crew Transfer
Photo courtesy of Uptime
Incident TypesAs a guide; incident analysis taken over a period of some years by the HSE indicates that the main hazards faced during transfer of personnel by carrier include:
• Persons inadvertantly falling from the carrier. • Lack of lateral impact protection for personnel. • Severe vertical impact on landing carriers. • Lack of dropped object protection. • Immersion or being placed in the sea. • Hazards faced by personnel when accessing/egressing the carrier. • Hazards faced when recovering personnel from restricted spaces such as those found in utility legs etc.
• Environmental hazards such as sea state, wind speed and direction, visibility, fog/mist etc.
Strategy to Reduce Risk
Hierarchy for risk mitigation
• Walk to Work – Gangway/Bridge• Man riding equipment• Personnel Lift• Stairs with landings• Ladder with fall restraint facility• Rope access/Work positioning
Walk to Work – Structure to Structure
Walk to Work – Vessel to Structure
Photo courtesy of Uptime
LinkspanGangways‘Surfers’
Vertical Ladders – Vessel to Structure
Photo courtesy of Windcat Workboats
Freeboard differential – Vessel to Vessel
Vertical Access – Tower
Photo courtesy of Avante
Man Basket – Vessel to Vessel/Structure
Photo courtesy of Sparrows Offshore Group
Consider the foreseeable risk
Emergency Response
Proportionate, Fit for purpose, Maintained, Practiced
Guidance
Guidance
Questions?
Chris Lawson Tel: +44 (0)7920 841232
Email: [email protected]
Vessel Logistics and Crew Transfer