LARS. Leif Løken Rolls-Royce Marine Deck Machinery Seismic and Subsea

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1 LARS Leif Løken Rolls-Royce Marine Deck Machinery Seismic and Subsea 2010 Rolls-Royce plc The information in this document is the property of Rolls-Royce plc and may not be copied or communicated to a third party, or used for any purpose other than that for which it is supplied without the express written consent of Rolls-Royce plc. This information is given in good faith based upon the latest information available to Rolls-Royce plc, no warranty or representation is given concerning such information, which must not be taken as establishing any contractual or other commitment binding upon Rolls-Royce plc or any of its subsidiary or associated companies.

2 Where ODIM is today

3 The way we work

4 Launch and recovery system for ROV Provide means for handling the ROV between deck and operational depth An automated handling system consisting of: ROV umbilical winch Handling unit with latch and bullet Power unit (HPU or FC) Control system and operator interface

5 Launch and recovery system for ROV ROV winch HPU Control system Operator interface A-frame Moon pool handling unit Overhead crane Gantry crane 3rd PARTY EQUIPMENT

6 First delivery in 1999 Geobay Many firsts... First launch and recovery system First moon pool system First winch with active heave compensation First system with synchronous operation of two active heave compensated winches Why face the challenges one at the time, when you can have a go at them all

7 A new generation from 2006 Requirements Operational depth up to 4000 m Higher launch and recovery speed Improved Active Heave Compensation capacity Improved functionality Improved efficiency Improved safety Consequences Larger in size More powerful More instrumentation New control system it will not be like this

8 A-frame based systems On deck Simple to install Exposed to environment In hangar More complex installation Large and heavy winch mounted above center of gravity

9 Winch below deck Overside Improved stability Free up space above deck Reduced noise Moon pool Fully enclosed in hangar Less vessel motion Ship designers are less enthustiastic

10 Reduced hangar size Overhead crane ROVs become more common also on PSV and AHTS Less space available Not optimal location, much vessel motion Overhead crane offers: Reduced width for installation Reduced height for installation Flush deck..but requires: Reinforced deck above hangar

11 Increased freeboard Gantry crane New requirements Increased freeboard required in harsh weather Minimum unguided lifting The gantry crane offers: Extended outreach Catch and release of ROV closer to surface Opportunity to guide through splash zone on rails on shipside but is bulky.

12 Reduced power consumption from vessel Without accumulators 800 kw (20 container) With accumulators 300 kw (10 container)

13 From hydraulic to electric drives Electrical drives Motivation: Reduced installation cost (Same as equipment cost ) Environmental aspects no oil on deck (except for gearboxes...) Presumably also lower maintenance cost Same performance Traditional induction motors cannot provide the required winch acceleration due to high inertia without overloading

14 The result of reduced acceleration capacity Significantly reduced heave compensation capacity

15 The same winch new drive Permanent magnet motors Low inertia Low speed, requiring low gearing Will provide required dynamic response Future challenges Electric energy storage Flywheel Batteries Capacitors Other consumers Replace hydraulic cylinders: Brakes Level wind A-frame

16 Increased focus on safety Certification All new systems are certified according to DnV rules for certification no lifting appliances. Option for post certification of delivered system

17 Summary Close cooperation with customers has resulted in enhanced safety and increased functionality on our products.