Castoro 7

 February 18, 2013; h 12:00

Semi-submersible lay barge

Castoro 7 is one of the world’s most efficient semi-submersible
pipelay barges. As Piper, its former name, it has an outstanding
worldwide track record of achievements including successful
pipelay and trunkline operations in the North Sea, West Africa,
Mediterranean Sea, Brazil and the Gulf of Mexico. Castoro 7
has the ability to lay pipe of 8 to 60” diameter with a fully
automated welding system.

Classification:
RINA C pipelaying unit; unrestricted navigation
Compliance with NMA

General specification:
Displacement: 53,662 t
High dimensions: 179.7 x 59.09 x 33.2 m
Minimum transit draft: 11.5 m
Working draft: 20 m

Storage capacity:
Pipe storage: 2,000 t
Total deck load: 4,050 t

Mooring system:
Mooring winches: 14
Total hoist capacity: 3,200 t at first layer
Mooring lines: 3” wire rope, 3,000 m
Anchors: 8 x 22.5 t, 5 x 20 t, 2 x 15 t

Double joint facilities:
Double joint facilities are on each side of the barge, each with
4 beveling stations and fully automated sub-arc welding systems. Also
capable of receiving, in reverse, cut-out DJ’s for re-prepping

Main production line:
Welding stations: automatic stations using automated Saipem
Welding System NDT and repair: AUT or X-Ray station
Field joint coating: available for main line and DJ welds coating

Pipeline tensioning:
Tensioners: 5 Western Gear linear pipe tensioners LPT-150 ST
Tension capacity: 340 t

Abandon & recovery system:
Main winch: 220 t @ 30.5 m/min
Boosters: Cley France, model 464 T 1000K
Total combined: 340 t

Stern ramp:
Ramp: 3 sections, tubular frame construction
Total length: 120 x 6 m

Deck handling equipment:
Work cranes: 3 x 64.8 t @ 10.7 m radius & 1 x 56.75 t @ 12 m radius

Power system generators:
Main generators: 8 Wartsila 9L20C3 diesels, AEG 1,500 kW
Auxiliary generators: 3 Caterpillar, 604 kW
Emergency generator: 1 Caterpillar D399, 1,000 kVA

Safety equipment:
Lifeboats: 6 x 80 man lifeboats, 24 x 20 man liferafts, 1 x fast rescue boat
FiFi and safety: all additional required equipment to satisfy RINA,
Panamanian and NMA rules

Accommodation:
401 persons

Helideck:
Designed to accommodate helicopters up to Sikorsky S61N &
S92 with dispensation