SUBSEA HANDLING EQUIPMENT
BOP CHAINHOISTS
BOP Chain Hoists are often employed on Jack-ups to move and
maintain the BOP Stack beneath thecantilever. Working as a pair,
each chain hoist connects to the BOP Lift ring providing tandem
lifts of up to200 Tonnes.
Each Hoist is mounted on runwaybeams suspended beneath thedrill
floor structure.Travel along each runway beamis via rack and pinion
mechanismson each hoist / Beam. The hoist liftingchains are
dispensed from a chain bucketby the hoist drive and reeved via
idler sprocketsover the lifting block assemblies.
Each hoist can be operated independently, and used for BOPStack
Maintenance tasks.
Typical Specification
Safe working load: Up to 100 Te per hoist
Hoist speed: Up to 1.1m/min
Travel speed: Up to 6m/min
Chain safety factor: 5:1
Type of control: Deck mounted or hangingpendant
DESIGNED & CONSTRUCTEDTO OPERATE IN ZONE 1 & SAFE
AREAS
Block 1, Units 3-7Souterhead RoadAltensAberdeen AB12 3LF
Scotland UKT: +44 (0) 1224 249355F: +44 (0) 1224 249339E:
[email protected]
1424 West Sam Houston Parkway NorthSuite 140HoustonTexas 77043
USAT: +1 713 468 5325F: +1 713 468 3498E: [email protected]
65 Victoria RoadGuiseleyLeedsLS20 8DQEngland UKT: +44(0)1943 870
822E: [email protected]
11c Tuas RoadSingapore638509T: +65 6794 5261E:
[email protected]
www.efcgroup.net
PRODUCT NAMEHERE
Wire Rope Hoists are sometimesused on jack-ups for handling the
BOPStack. These systems are mounted on parallel runwaybeams which
span the cantilever.
Trolleys traverse each runway beam via rack andpinion, carrying
lifting blocks and reeving arrangements above to suit.The winches
are mounted at fixed points on the end of each runwaybeam and
reeved around sheaves at the opposite end of each runwaybeam.
Spool-geared diverter sheave arrangements may be employedwhere
headroom is limited to ensure rope fleet angles are within
limitsand rope life is preserved.
The parallel wire rope hoisting arrangements provide tandem
lifts of upto 100 Tonnes, using the BOP's lifting arrangement /
lift ring
Typical Specification
Capacity: 2 x 45 Tonnes*
Number of ropes: 2 ropes per winch
Number of falls: 4 falls per rope*
Rope safety factor: 5:1
Winch & Travel: Hydraulic drives
Travel speed : 0 to 5 m/min
Hoist speed: 0 to 4.5m/min
Travel and hoist limits: Hydraulic or electric
[*Higher capacities available with additionalfalls of rope and
slower hoisting speeds]
SUBSEA HANDLING EQUIPMENT
WIRE ROPE BOPHOISTS
