SPM MA_DNV
Transcript of SPM MA_DNV
Single Point Mooring Systems
24 Feb 2012 By. MA
Content
1. SPM Technical Description
2. Lesson Learnt
Single Point Mooring (SPM )is used for loading\unloading of tankers, providing a weathervane mooring in open sea conditions
SPM Definition
SPM
Loading
Mooring
Shore Terminal
Jetty Tanker
Pipeline
SPM
Why SPM?
SPM Components
Pipeline
PLEM (Pipeline End Manifold)
Under Buoy Hoses
Buoy
Floating Hoses
Tanker
Mooring Hawser
Mooring Chains
Catenary Anchor Leg
Mooring (CALM) Buoy
Buoy Components Central Pipe
Unit
Valves
Buoy Piping
Platform
Hose
Central Piping Unit (CPU)
Under Buoy Hose
Connection
Above Water Components-1
Floating Hoses
Mooring Hawsers
Rotation vs Fixed Parts
Fixed
Rotating
Turntable Buoy: buoy with a geostatic fixed buoy body (moored to the seabed) and a rotating mooring table (Conventional Design)
Turret Buoy: buoy with a geostatic turret and a buoy body, which is rotating around the turret.
CALM Buoy Types
Bearings
Main Bearing
Fixed
Rotating
Swivel Bearing
Central Piping Unit
(CPU) Electrical
Swivel
Turret Buoy-Rectangular
Fixed
Rotating
Surge Tank
Central Piping Unit
Turntable Buoy
Hose Connection
6m
12m
Turret Buoy
Moored Tanker
Mooring Hawser
Mooring Hawser
Floating Hose and Under Buoy Hose
Floating Hose Strings
Under Buoy Strings
Oil Companies International Marine Forum (OCIMF)
Floating Hose Strings (Example)
MBC
Floating Hose and Marine Break-away Coupling (MBC)
MBC
Tanker Manifold Connection
Under Buoy Hose Strings (Example)
Water Depth
15m
32
m
Floats
Buoy
PLEM (Pipeline End Manifold)
PLEM (Pipeline End Manifold)
PLEM Barrel Valve (Under Buoy
Hose)
Plan View
PLEM – Elevation View
Elevation View
Piled Foundation
Hydraulically Operated valve
Hose Connection
PLEM Valves
PLEM
Buoy Anchoring Assembly
Anchor Chains
Seabed Anchor
High Holding Power (Fluke Anchor)
SPM Project Requirements
• Certification and Design Codes
• Navigation Depth and Dredging
• Survey (Bathymetirc, Geotechnic, Metocean, UXO)
• Pipeline Connection
• Flow Assurance
• Control \SCADA
• Operation\Support Vessels\Spill Clean-up
Certification and Design Codes
• Det Norske Veritas (DNV)
• Bureau Veritas (BV)
• American Bureau of Shipping (ABS)
• Lloyds Register of Shipping.
Navigation Depth and Dredging
Survey (Bathymetirc, Geotechnic, Metocean, UXO)
PLEM-Pipeline Spoolpiece
Flow Assurance