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

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Presentation on theme: "New Technical Approach to Classification of Anchor Handling and Diving Support Vessels A. DEVADAS RINA MUMBAI."— Presentation transcript:

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

2 Training Classification Certification Testing Inspection Our services E TIC Project Management Consulting Engineering Design Siting

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

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

5 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 OIL & GAS sector trend * Clarkson research Service (Mar-13) General Market Overview

6 * Clarkson research Service (Mar-13) AHTS and MPV Orderbook trend Contracts by type Number of ContractsContracting trends 20062007200820092010201120122013 AHTS >12000 bhp201719414620 7UP BY…40% AHTS 8-12000 bhp101728393326244DOWN BY…-33% AHTS <8000 bhp566893149123112696DOWN BY…-65% AHT253235575436121DOWN BY…-67%

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

8 “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 Anchor Handling RINA Approach

9 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 Anchor Handling STAB RINA Approach

10 * Clarkson research Service (Mar-13) MPV Orderbook trend Contracts by type Number of ContractsContracting trends 20062007200820092010201120122013 Construction Vessel89966980434624 Lift Boats/Installation16151912188121DOWN BY…-67% Accommodation Units1127365149 2DOWN BY…-43% MSV/DSV/Rov Support596133220373111UP BY…42% Offshore Dredgers38126151

11 Technical Challenges This situation generate an high complexity of the system and relative certification scheme DIVING SUPPORT VESSELS Maintaining position during diving operations Stability during handling of diving equipment Hull structural arrangements related to the diving system Monitoring and electrical system to support the diving operations 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:

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 1.ensure the highest flexibility in the construction, exchange, replacements of the diving system components 2.keep the history of use and maintenance of each component 3.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 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 XXXXXxx SHIP NAME

17 Thanks for your kind attention


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