Offshore Access Gangway
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To achieve that experience, Ampelmann Operations’ employees perform their tasks based on the company’s four core values: safety, professional excellence, team spirit and technological excellence. All personnel is properly trained. All operations are planned and detailed before execution. We use Hazid meetings to discuss the operation with the Ampelmann system within our client’s larger project to ensure all interfaces are understood and documented. In the design of our systems FMEA studies are executed to ensure any single failure of a critical component is covered by back-up components, proper operational protocol is followed and checked against common sense. Ampelmann systems are certified under the Code for Lifting Appliances in a Marine Environment. Furthermore, Ampelmann also involves automotive experts in software fool-proofing and we are in continuous discussions with national HSE departments and clients’ HSE experts to continue to improve safe operations with our expanding fleet and services offered.
Transcript of Offshore Access Gangway
Visit Shell E&P to Ampelmann
Rotterdam, August 24th 2009
AMPELMANNOffshore access as easy as crossing the street
July 2002
• Conference on wind energy
• A presentation on access
• Design something better• Design something better
• An invention needs a codename: Ampelmann
“Offshore access, as easy as crossing the street”
The problem
The problem
The solution
The solution
The solution
Demonstrator phase
• 2 meter stroke cylinders
• Offshore proof
• Design for safety
• Test in offshore environment
• Design:
Hs = 2.5m, 50m vessel à no motions
The Ampelmann
Offshore testing
Transfer succeeded!
Operational experience: P14-A
• Removal
• Operator: Wintershall
• Client: SMIT Marine Projects
• Vessel: Taklift 4• Vessel: Taklift 4
• Dutch HSE demand:
“Use safe gangway!”
P14 removal
As easy as crossing the street…
Topside lift on 5th of June
P14 statistics
• Maximum transfer wave height (visual): Hs = 2.8m
• Maximum wind speed: 7 Bft
• Transfers: 750• Transfers: 750
• Landings: 170
Brunei Shell Petroleum - Operations
Brunei Shell Petroleum - Operations
As easy as crossing the street…
Brunei Shell Petroleum - Evacuation
•Gangway stays outside vessel
•Speed up transfers
•Access crew via stair on wheels
•Onshore induction:
•68 pax in 18 minutes
Evacuation drill: 45 people in 10 min
Brunei Shell Petroleum - Operations
• Maximum transfer wave height : Hs = 1.2m Hmax = 1.8
• Evacuation drill: 45 people in 10 minutes
• Access within 15 minutes of choosing the landing zone
• Transfers: 730
• Landings: 85
• Locations: 3
Access testing Oil & Gas
Mobilization 3 weeks ago
• Jumbo Javelin
• Turbine installation
Last week: trial in UK
Safety & Certification
Safety
• Core mission: fail-safe and hazardous free design
• Extensive applied safety management systems: - Failure Mode Effect Analysis- Hazard Identification (HAZID)*
Certification
• Fabrication survey: Lloyd’s Register
• Load test: Lloyd’s Register
• Design Appraisal: Lloyd’s Register
*In cooperation with: Shell, Lloyd's, Staatstoezicht op de Mijnen & Smit
FMEA
• Component level “what if”
• Reduction to basics
• Redundant units where critical:
• Hoses• Hoses
• Valves
• Computers
• Power packs
• Sensors
ASMS
• Ampelmann Safety Management System
• Failures: green, yellow, orange, red
• No warning to crew à continue
• Use traffic light
Alarm
• RELAX
• On tip: step off
• On gangway:• On gangway:
• Stand + hold on
• Wait for the operator’s orders
Transfer safety
• No connection à pressure outward (200kg on structure)
• All hydraulics à free floating
• Possible disconnecting from main power
Landing options (10 different structures)
Free floating
Cylinder designMechanical design:
• Worst case safety factor > 2.8
• No lock-up: hinged connections
Cylinder design
Manufacturing:
• Certified material & manufacturing
• Pressure test: 350 bar
Cylinder design
Operations:
• Redundant actuation: valves, sensors, PLC
• Filters on pilot & pressure oil
Workability on support vessels
Anchor handler25m, Hs = 2.0m, 85%
Multi purpose vessel50m, Hs = 2.5m, 93%50m, Hs = 2.5m, 93%
Offshore Supplier 70m, Hs = 3.0m, 97%
In blue the percentage of operability in the Southern North Sea
Installation on vessel
• Installation less than 8 hours
• Welded on deck
• Stand alone system: •
• Own power supply
• Fits on any vessel or barge
Continuous access
• Container top fitting
• Sliding rail
• Pivot and slew
• Ball-bearing on• Ball-bearing onMercedes frame
• Normal gangway (10m)
“Slideway”
“Slideway” on Belait Barakah (center)
DP envelope
Ampelmann II
Grand opening 15 May
Improvements Ampelmann II
• More piping instead of hoses
• Moving hoses on the inside
• New design bottom frame
Improvements Ampelmann II
• Max length increased: 15 à 20m
• Weight reduction: 4t à 2t
• Telescoping cable pulley system
Improvements Ampelmann II
• Redundant control cabinets
• Redundant motion sensor and safety PLC
Improvements Ampelmann II
3m freeboard 3m
5.2m lowest point above sea level 2.4m
13.8m highest point above sea level 14.8m
8.6m total range 12.4m
Solution for fast crew boats
Offshore Wind: O&M
The Ampelmann – Workability on vessel
Workability depending on
• RAO’s of the vessel
• Location of the Ampelmann on the vessel• Location of the Ampelmann on the vessel
• Heading of the vessel
• Sea state
Trial SNS pool
• Operators interested: Total, NAM, Wintershall, BP
• Planning: one week testing in October
• Test objective very clear: we want to cross people onto different platformsdifferent platforms
Offshore access…
As easy as crossing the street
