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A jackup oil rig. A jackup rig or a self-elevating unit is a type of mobile platform that consists of a buoyant hull fitted with a number of movable legs, capable of raising its hull over the surface of the sea.
Rack Phase Difference (RPD) is a difference in the elevation between rack teeth of the chords of any single leg of a jackup rig with open truss-type legs. This type of jackup vessel operates with a rack and pinion drive system, as opposed to the pin-hole system found on jackups rigs with tubular legs. The legs are mostly triangular though some ...
In 1954, it built the first jack-up drilling rig. [citation needed] In 1955, it made the first log-stacker machine. [citation needed] In 1965, the company made the first straddle carrier. [citation needed] [clarification needed] LeTourneau had spent the early 1950s perfecting a diesel-electric drivetrain for multi-wheeled heavy-machinery.
Pages in category "Jack-up rigs" The following 10 pages are in this category, out of 10 total. This list may not reflect recent changes. ...
Maersk Convincer is a jackup rig built in Singapore. It was originally named PetroJack III. It was acquired and owned by Danish Maersk Drilling for operations in Southeast Asia. In 2022, Maersk Drilling sold the jackup rig to ADES.
Most are self-elevating jackup rigs. To enable quick relocation in the wind farm it is self-propelled. It also has a slender ship shaped hull [2] to achieve a quick turnaround time with the vessel carrying several foundations or wind turbines each time. [3] Azimuth thrusters are used to position the vessel during jack-up operations. [3]
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She has the capacity for ten wind turbines at a time. The whole ship can be jacked up out of the sea on her six legs, to provide a stable platform when installing wind turbines. The jacking system uses hydraulics. [4] She can raise herself between 3 metres (10 ft) and 46 metres (151 ft) above the sea. [2]
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