SUBSEA LIFTING OPERATIONS

Program
Tuesday 29 th November
Wednesday 30 th November
09.00 Registration / Coffee
Chairmen: Mr. Ole J Nordahl, Statoil and
Mrs. Guro Løken, EMAS AMC
10.00 the different phases of a subsea lift from an offshore
construction vessel
• Seafastening
• Lifting from deck of the vessel
• Lifting in air
• Through the splash zone
• Further lowering
• Landing phase
• Recovery to deck
Mr. Erik Widding, emaS amC
10.45 dnv Marine Operations Rules for Subsea Lift Operations
• Brief overview of relevant DNV Publications
• Capacity checks of lifting equipment
• Hydrodynamic forces when lifting through wave zone
• Dynamic forces during deepwater lifting operations
Mr. Tormod Bøe, Det Norske Veritas
11.45 Coffee Break
12.15 analysis of subsea lifting operations
• Influence from load on vessel motion
• Large structures
• Impulsive loads (slamming, snatch load and impact)
• Varying conditions during lowering
Mr. Peter Chr. Sandvik, maRINTEK
13.00 Lunch
14.00 experience from offshore construction vessel deck
handling and rigging
Mr. Terje Johnsen, Subsea7
14.45 deployment in Ultra Deep Water – The Advantages and
Use of Synthetic Ropes on Traction Systems
• Reasons for choosing a synthetic system
• Description of the winch
• Description of the rope
• Description of the Application
• Inspection and Retirement Criteria
Mr. Dennis Sharman, Samson Rope
15.30 Coffee Break
16.00 active Heave Compensation is becoming a standard for
Subsea Lifting Operations. In general there are three
different ways to achieve Active Heave Compensation
(AHC)
• AHC directly on the winch – hydraulic driven
• AHC directly on the winch – electric driven
• AHC via a hydraulic cylinder – combination of passive
and active heave compensation
Mr. Wilco Stavenuiter and Mr. Jan den Hertog, Huisman Equipment BV
16.45 advantages of today’s simulators
• How we use our simulators, achievements, trends and goals
Mr. Robert Rylander, Aalesund University College
17.30 end of Day 1
19.00 Conference Dinner
Chairmen: Mr. Thore Grønvik, Subsea 7 and
Mr. Martin Ahlbäck, Technip
08.30 Computational fluid dynamics (CFD) in subsea lifting
analysis
• How to establish hydrodynamic coefficients by CFD
analysis
• Experience from use CFD analysis
• Advantages/disadvantages with CFD
Mr. Petter Moen, Subsea 7
09.00 template Lifting Operations – From Barge through
Splash Zone
• Time domain analysis with non-linear vessel motions
including interaction and DP
• Monitoring contact forces during template lift-off from
the barge
• Monitoring template behavior during crane swing
• Monitoring hydrodynamic forces (drag, mass and
slamming) during lowering through the shielded splash
zone
Mr. Volkert Oosterlaak, Teknisk Data AS
09.45 Coffee Break
10.15 sima - The new graphical interface for RIFLEX and SIMO
• SIMA is a graphical user interface for the RIFLEX and
SIMO software developed by Marintek for analyzing
slender marines structures and simulation of marine
operations. The presentation will give an update on:
- Background
- Status
- Future plans
Mr. Simen Moxnes, Statoil
11.00 troll P12 Spool Installation - Installation of a 155 m 36”
spool from a spool installation barge
• Background and chosen method
• Engineering Challenges
• Operational Experience
mr. Vegard Nedrevåg, Senior Project Engineer, Technip
Stavanger
11.45 Lunch
13.00 Pencil Buoy Method - Installation and removal of subsea
structures
Mr. Henrik Mork, emaS amC
13.30 goliat Template Submerged Tow-out and Installation
Mr. Kjetil Gjøystdal, Technip
14.00 Åsgard Subsea Compression Project, Installation &
Intervention
• Why subsea compression, a brief introduction.
• Åsgard subsea compression plant, the main installation
and intervention challenges
• A look at different Intervention options for large modules
• What does the future hold
Mrs. Therese Bjarke, Statoil
14.45 Closing / Adjourn
15.00 bus transports to the Airport