Commercial Saturation Diving Personal Diving Equipment Project PDE StatoilHydro Technip Deep Life

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Commercial Saturation Diving Personal Diving
Equipment Project(PDE)StatoilHydroTechnipDeep
Life
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Contractor shall implement modern technology in
. . . . . . . . . . Diving spreads and equipment
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Key Contributors

• StatoilHydro
• Initiated project as requirement within a 5 year
  Diving, Pipeline repair, Contingency and
  Modifications services contract for the Norwegian
  Continental Shelf.
• Sponsoring development of new Personal Diving
  equipment for use by the commercial offshore
  diving.
• Technip Norway
• Managing the project as part of the above
  contract.
• Initial operational implementation will be
  onboard Technip vessels.
• Deep Life
• Originator of the Open Revolution concept for
  design of life critical safety systems
  (www.deeplife.co.uk).
• Main sub-contractor developing the technical
  solutions based on a dual rebreather core.

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Main PDE subsystems
TOPSIDE UNIT DATA SERVER
SUPERVISOR
SURFACE
SUB-SURFACE
DIVERS HELMET
BELL UMBILICAL
REBREATHER MUX
DIVERS UMBILICAL
DRY SUIT HEATED UNDERSUIT
BELL
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Applicable Standards and specifications

• List of safety requirements and harmonising
  standards or other specifications systems applied
  to the system
• Personal Protection Equipment Directive,
  89/686/EEC
• EN141432003, A Harmonised Standard, Rebreathers
• EN615082004, functional safety of
  electrical/electronic/programmable electronic
  safety-related systems
• The Restriction of Hazardous Substances Directive
  (RoHS) 2002/95/EC
• The EMC Directive 89/336/EEC
• The EMC Directive 2004/108/EC
• The Low Voltage Directive (LVD) 2006/95/EC
• The Machinery Directive 98/37/EC and Directive
  2006/42/EC
• NORSOK U-100 1999, Manned Underwater Operations
• NORSOK U-101 1999, Diving Respiratory Equipment
• NORSOK S-002, Working Environment
• NORSOK S-005, Machinery Working Environment
  Analysis
• DNV-OS-E402 2004, Offshore Standards For Diving
  Systems
• IMCA AODC 035, The Safe Use of Electricity
  Underwater
• OSHA 29 CFR Part 1910 Subpart T Commercial
  Diving Operations

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Main subsystems Rebreather - 1

• Rebreather as Primary and Bail-out breathing
  system
• Secondary bail-out using open circuit surface
  supplied umbilical gas
• Dual rebreather core with high safety integrity
  and reliability of MTBCF gt 109 Hours (SIL 4) per
  core
• Gas efficient
• Works as Closed Circuit Rebreather on 100 O2
• OR
• Works as Semi Closed Rebreather with surface
  supplied gas or integral bail-out gas (up to 25
  O2 )

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Main subsystems Rebreather - 2

• Automated functions
• Onboard bail-out (50 min _at_ 200m, RMV 62.5 lpm,
  200 bar, 2 x 2 ltr in Semi-closed mode)
• Surface supplied open circuit bail-out
• System start up and diagnostics
• Loop ppO2 control
• Monitoring and logging of all critical parameters
  for divers in real time on-line
• Autonomous on loss of umbilical
• Uses dual Micropore 5 scrubber cartridges
• Very low Work of Breathing
• High endurance
• No dusting
• No channelling
• Very low risk of caustic cocktail
• Quick change

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Main subsystems Rebreather - 3

• Comprehensive monitoring of system parameters
• ppO2
• ppCO2
• ppHe
• pp Hydrocarbons CO
• Pressure (depth)
• Relative Humidity
• Flood
• Loop Temperature, Ambient Temperature
• Divers Tidal Volume
• Divers Breathing Rate
• Scrubber Health (temperature profile)
• Scrubber Life (CO2 consumed)
• Scrubber fitted (sensor and visual)
• Supply gas pressure
• Bail-out gas pressure
• Battery Life

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Main subsystems Rebreather 4

• Gas Manifold
• Surface supplied umbilical gas
• O2 connection
• Gas from left and right bail-out cylinder
• Gas supply to left and right rebreathers
• Gas supply to helmet
• Helmet Stab Plate single composite connection
  for all services
• Breathing loop
• Helmet gas supply
• HDTV quality cameras (2)
• Lighting (2, up to 150W each)
• Communications
• Diver alarm
• Peripheral Field Device (PFD) LED
• Rebreather voice alarm annunciation

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Main subsystems MUX

• MUX (Multiplexer) integral to rebreather
  digitizes all signals and provides power and
  alarms
• Multiple redundant data paths
• 2 x optical fibre
• 2 x copper pairs
• (only one path of one type required)
• Digital communications (24 bit) Video
• Control of lighting and video
• Diver alarm
• Helmet integrity alarm
• Control of diver heating system
• Rebreather counterlungs
• ECT Under suit (4 zones)
• Rebreather power
• MUX is dual redundant, and has no software to go
  wrong

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Main subsystems Topside

• Topside System to
• Communicate all data to and from rebreather
• Monitoring, logging and alarming of all critical
  parameters for divers in real time on-line.
  Available for immediate action and long term
  analysis
• High reliability server for data
• storage and Supervisor interface
• management (via web browser)
• Stand alone system for fitting to current
• DSVs
• Open data format for integrating into
• future DSVs or current software

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Main subsystems Dry Suit, Helmet, Umbilical

• Dry Suit
• Keep the diver dry and protected against
  contamination and thermal effects of the
  environment (HDS).
• Active heating using Electric Conductive
  Textiles (ECT).
• Passive thermal protection in the event of loss
  of heating.
• Helmet
• Smaller/lighter less stress on diver.
• Active monitoring of latch mechanisms.
• Diver emergency alarm.
• Heated visor (active de-mist).
• Semi-Customised fit.
• Umbilical
• Single moulded composite of Ø 26 mm
• O2 and surface/bell supplied gas
• Quad redundancy on power and communications

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Ergonomics Comfort and Reduction in Complexity

• Improve the divers mobility and vision
• The equipment shall be lighter easier to handle
  and more comfortable to wear
• Improved gas efficiency
• Reduce umbilical size
• Clear digital communication to topside
• Camera for overview and "portable camera for
  Inspection.
• Compact, tough, reliable adjustable lights
• Reduce Complexity
• Rebreather on the diver. No reclaim system.
• Electrical diver heating - No diver hot water
  machinery.
• Low and simple maintenance with long service
  intervals.

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Interface with existing equipment

• Simple and easy interface - The system does not
  require a major refit
• Additional Bell umbilical leads for transmittal
  of digital signals
• Can be refitted through using the return hose in
  existing umbilicals
• Need a new optical slip-ring, but simpler due to
  less gas and water transfer
• Dive Control Simplifications
• Simplification of the bells
• Simplification of slip rings
• With the system, Reduced Hot Water
• Minimised corrosion problems
• Significant operating energy savings
• With the system, lower maintenance cost

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