4.1MBR Product Deployment System
The PDS is a compact product deployment system for the deployment, retrieval and storage of subsea umbilicals, risers and flowlines (SURF) or composite pipe.
Operational Specification
Lay spread type
Vertical or horizontal
Tensioner operational mode
2 track mode
Track contact length
2.44m
Properties
Dimensions
14.5m x 8.5m x 16.4m (LxBxH)
Weight
150Te (empty)
Reel diameter
8.2m/9.5m (core/OD)
Weight - 30Te (empty)
Movable top chute
±13º
Work platform deck area
20m2
Work platform deck capacity
1Te/m2
Work platform opening
1.5m
Product Handling Requirements
Low tension MBR
4.1m
Maximum pipe length
3200m (3inch composite)
Maximum grip
86Te/track
Maximum squeeze
35.3Tem/track
Product speed
Variable to 1200m/hr (at 60Hz supply)
Minimum reel torque
2.1Tem
Component Parts
Integrated hang-off clamp
Integrated 5Te pull-through winch with sheave
Integrated 25Te deployment winch above tensioner
Ancillary Equipment
Electro-hydraulic powerpack
5.0m x 2.6m x 2.5m (LxBxH)
Weight - 12Te
Control van
3.0m x 2.4m x 2.5m (LxBxH)
Weight - 4Te
Spares container
3.0m x 2.4m x 2.5m (LxBxH)
Weight - 6Te
Design Appraisal
Design appraised in accordance with DNV standards
Lifting Equipment
All items supplied with dedicated rigging rated for offshore lifts
Assumed Conditions
Humidity
Up to 100%
Atmosphere
Marine/high salinity
Hose & Cable Package
20m set from HPU to reeler
20m control cable from control van to HPU
Wireless Walk About Box supplied as option for control
Power Requirements
Supply 1 (main system)
2x 132kW
3 Phase, 440V, 60Hz, 400amp supply at full load
Additional Information
The integrated system consists of a tensioner system mounted on a frame with an enclosed 9.3m diameter reel and a movable entry/departure chute.
The reel is fixed within the unit’s frame and does not require separate sea fastening onto deck.
The unit can deploy or retrieve the product both in vertical or horizontal orientation, guided by the pivoting top chute.
The tensioner’s top track is mounted on kingpins so it can pivot to open or close as required by the operator through two hydraulic cylinders.
The tensioner’s bottom track is fixed onto the reeler frame with load cell pins to allow accurate load monitoring.
During operation both the top and bottom tracks are synchronised to deliver the same amount of torque from their respective electric motors.
The unit is supplied with a dedicated electro-hydraulic powerpack.
These specifications apply to a 3inch 15kpsi pipe at 3200m length. System specifications for other pipe length, diameter and design pressure will differ.
