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Jackup Fixed platforms, which rest on the seafloor, are very stable, although they cannot
drill in water as deep as floating platforms can. The most popular type is called a jack-up rig. This is a floating (but not self-propelled)
platform with legs that can be lifted high off the seafloor while the platform
is towed to the drilling site. There the legs are cranked downward by a rack-and-pinion
gearing system until they encounter the seafloor and actually raise the platform
10 to 20 meters above the surface. The bottoms of the legs are usually fastened
to the seafloor with pilings.
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Petrolia Drilling ASA - Hopsnesveien 127 / 5232 Paradis / Norway / Tel: +47 55 22 47 10 / Fax: + 47 55 22 47 01 / E-mail: pdr@petrolia.no |
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