Mat Supported Jack Up Rig

This mat transfers the weight of the jack up through the large surface of the mat. 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. Continuous foundation support e g.

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A mat supported ju can be mobilised.

Mat supported jack up rig. Mat foundations individual leg footings e g. Gulf of mexico area in water depths up to 200 feet. I want to buy. Spudcans with or without skirts.

Selling an older mat supported jack up offshore drilling rig. Www jeffweber eu we would like to. Mat supported jack up foundation on soft clay overturning storm stability this paper is in regards to the maleo producer a mat supported jack up converted to a mopu mobile offshore production platform located in a seismically active offshore region of indonesia. Nowadays only a few mat supported ju are available.

Once on location the hull is raised to the required elevation above the sea surface supported by the. It is possible to bring the jack up very close to the production platform without undermining the platform. The jacking down mechanism also raises the upper portions barge and drilling structure above the sea level. Legs the legs of a jack up unit are normally vertical however slant leg designs also exist.

The operating procedure involves floating the platform to the desired location and then jacking the mat toward the seafloor until the drilling platform is entirely supported by the mat. These jack ups were followed by mr gus ii a mat supported unit using a hydraulic jacking system which was built by bethlehem steel corporation. Mat supported jack up rigs consist of three or more legs that are connected at their lower ends to a large horizontal mat. The other type of jack up rig the mat supported jackup attaches a steel shoe shaped in the form of an a to the bottom of the legs.

Stewart technology associates undertook a large role in jack up analysis and. A more logical choice for drilling environments that have soft floors mat supported jackups distribute the weight of the rig across the ocean s bottom like a snow shoe. Design variables for jack up legs may involve the following listed considerations number of legs. The buoyant hull enables transportation of the unit and all attached machinery to a desired location.

The early breed of jack ups was primarily designed to operate in the u s. Usually shaped like an a. Jack up mat supported type slotted type operation with jack up.