An off-shore oil rig on a production/drilling platform (artificial island fabricated from steel). It is shown here without the drilling tender which will be positioned just under the window maker which is shown here at extreme right, hanging at an angle of 45 degrees. Another option is to install every thing on the drilling platform without using a tender. For that you will need a larger platform with subsequent increase in costs. The crane barge CB2 is shown in the background. It has just installed the derrick set on to the drilling platform.Oil platforms are piled and anchored permanently to the seabed. They are not movable objects. Rigs are completely self contained and mobile units. A drill ship even has its own motor and propeller; whereas jack-ups and semi-subs need to be towed to location (fixed by GPS) by powerful tugs (Smit Lloyd). In Nigeria swamp barges and land rigs are more common.
Tuesday, July 12, 2005
Drilling platform
An off-shore oil rig on a production/drilling platform (artificial island fabricated from steel). It is shown here without the drilling tender which will be positioned just under the window maker which is shown here at extreme right, hanging at an angle of 45 degrees. Another option is to install every thing on the drilling platform without using a tender. For that you will need a larger platform with subsequent increase in costs. The crane barge CB2 is shown in the background. It has just installed the derrick set on to the drilling platform.
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