Releasable Mooring System Design - Drillsafe
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1 Delivering high quality personnel, service, and equipment - all incident free Releasable Mooring System Design
Transcript of Releasable Mooring System Design - Drillsafe
1Delivering high quality personnel, service, and equipment - all incident free
Releasable Mooring System Design
2THE OFFSHORE MOORING AND SUBSEA COMPANY
Problem + Solution
Not to drill during the cyclone season
Find a way to enable MODU to quickly depart field while still
maintaining mooring capability
3THE OFFSHORE MOORING AND SUBSEA COMPANY
Regulatory Feasibility
Offshore Petroleum and Greenhouse Gas Storage Act
2006 (OPGGSA)
Navigation Act 2012
Management of Safety on Offshore Facilities
Regulations 1996 (MOSOF)
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THE OFFSHORE MOORING AND SUBSEA COMPANY
Qualification of Technology
Technical Documentation
Design Documentation
Construction
Operational History
Proof Testing
Case Studies
FMEA
BowTie analysis for MAE
Control Functions
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THE OFFSHORE MOORING AND SUBSEA COMPANY
RARPlus
Highest number of alternate release options
Highest ultimate load and proof load rating
No reliance on ROV for alternate release
Highest degree of acoustic transducer protection and redundancy.
Highest proven operational performance record
Rig immediately ready for transit
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RAR Plus Release Options
Acoustic Release Backup - Rig Fairlead Backup - AHTS
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Proof Load and MBL
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Nested for Transit
THE OFFSHORE MOORING AND SUBSEA COMPANY
Eliminates need for AHTS
Minimize personnel exposure
Eliminate AHTS weather downtime
Maximize time savings
Rig immediately ready for transit
9THE OFFSHORE MOORING AND SUBSEA COMPANY
Basis of Design
MODU Mooring in Australian Tropical Waters Guideline
10THE OFFSHORE MOORING AND SUBSEA COMPANY
Departure Study
11THE OFFSHORE MOORING AND SUBSEA COMPANY
Cyclone Response on Paper
• T-time calculation for current operations• Operations to be completed for rig avoidance readiness• Weather Forecast • Proposed MODU avoidance path/location• Non-essential personnel mobilisation• Vessel mobilisation post release
12THE OFFSHORE MOORING AND SUBSEA COMPANY
RARPlus Training
Title Holder MODU Operator AHV Crew
13THE OFFSHORE MOORING AND SUBSEA COMPANY
Equipment
• (Set) Anchor, Chain and Wire per leg
• (Set) 1 RAR Plus per leg
• (Set) 1 Trigger Sleeve per leg
• (4) Spare RAR’s and (4) spare end cap
• (2) Hydraulic Service Unit (HSU)
• (2) Command Units and (2) 1120 Transducers w/ deployment reels
• (1) RAR Test/Diagnostic Unit per AHTS
• (1) Spare mooring leg
14THE OFFSHORE MOORING AND SUBSEA COMPANY
Offshore Operations
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Release Video
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Q & A
