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New Technical Approach to Classification of Anchor Handling and Diving Support Vessels

New Technical Approach to Classification of Anchor Handling and Diving Support Vessels. A. DEVADAS

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New Technical Approach to Classification of Anchor Handling and Diving Support Vessels

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  1. New Technical Approach to Classification of Anchor Handling and Diving Support Vessels A. DEVADAS RINA MUMBAI

  2. Our services E TIC ConsultingEngineering Classification Project Management Certification Testing Siting Training Inspection Design

  3. International RINA Network Over 150offices 53 countries Level of RINA presence

  4. O&G Services Site Supervision Engineering Consulting Inspection & Testing Project Management Asset Integrity Management Design Certification

  5. General Market Overview • The offshore sector expansion in the last years is linked to: • world increasing demand of petroleum and natural gas • deep waters exploitations > increasing of drilling and production and storage units demand * Clarkson research Service (Mar-13) OIL & GAS sector trend

  6. * Clarkson research Service (Mar-13) AHTS and MPV Orderbook trend

  7. Anchor Handling Harsher environmental conditions Increase of depth where the O&G industry is moving to Increase of anchoring system weight and more critical operative conditions Roller strength verification Winch arrangement and control Visibility from bridge deck Hull connections verification The AHTS stability become a parameter to keep strictly monitored Technical Challenges

  8. Anchor Handling • “Anchor Handling” is specifically designed for support to off-shore and wind farm units: • roller strength, winch arrangement and control, hull connections • visibility from bridge deck RINA Approach

  9. Anchor Handling STAB Additional notation showing the capability of tugs and supply vessels to handle anchors safely. Main characteristics: • specific stability criteria for compliance with Norwegian Maritime Authority • Circular – Series V RSV 04-2008 • based on extensive studies carried out by RINA on the effects of the forces transmitted by the anchor handling wire rope • this additional class notation covers also the equipment to be fitted on board, to allow the Master greater control of the ship stability RINA Approach

  10. * Clarkson research Service (Mar-13) MPV Orderbook trend

  11. DIVING SUPPORT VESSELS 2 type of system, Surface (up to 50 m) and Saturation (from 50 to 500m) have different characteristics which have to be dealt with in different ways: Maintaining position during diving operations Stability during handling of diving equipment Monitoring and electrical system to support the diving operations Hull structural arrangements related to the diving system This situation generate an high complexity of the system and relative certification scheme Technical Challenges

  12. Diving Support Vessels • The additional class notation DIVINGSUPPORT is assigned to ships equipped with a diving system certified by RINA. • maintaining position during diving operations • stability during handling of diving equipment • hull structural arrangements related to the diving system • electrical system to support the diving operations RINA Approach

  13. A new concept of classification is being developed on the basis of the requests of the Makers, Contractors and Associations (e.g. IMCA) of this sector ensure the highest flexibility in the construction, exchange, replacements of the diving system components keep the history of use and maintenance of each component avoid that ‘unknown’ components are installed in the diving systems Three levels of Class certificates A component based certification approach

  14. main components can be combined in various arrangements, in order to constitute a primary system (Diving System) • the system can then be dismantled and re-combined, substituting or adding some components, for other campaigns • the three levels of certificates will grant the possibility to exchange/replace components (main or basic) on a primary system without affecting its Class Certificate. RINA Approach

  15. each component (principal, main and basic) is provided with a proper certificate of Class, which follows the component during its life, including the lay up periods • this system guarantees the execution of the necessary periodical surveys, defined by the Manufacturer and approved by Class RINA Approach

  16. SHIP NAME XXXXXxx RINA Rules for OSV • Stand alone classification rules for OSV • Expected issue date: July 2013 • Portfolio of dedicated additional Class Notations and services to increase the Class value • Full information support through Leonardo INFO and EASY RINA Aproach

  17. Thanks for your kind attention

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