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Oil Rig Photos

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Drilling Rigs - Semi-Submersible

A Semi-submersible platform or rig, is a mobile structure used for drilling for oil and natural gas in offshore environments. Their superstructures are supported by columns sitting on hulls or pontoons which are ballasted below the water surface. They provide excellent stability in rough, deep seas. Semi-submersible rigs can be moved from place to place; and can be ballasted up or down by altering the amount of flooding in buoyancy tanks; they are generally anchored by cable anchors during drilling operations, though they can also be kept in place by dynamic positioning. Semi-submersibles can be used in depths from 600 up to 35,000 feet (180 to more than 10,600 m).
The Jack Bates Owned by Transocean the Jack Bates was built in 1986 at the Harima Heavy Industries in Tokyo. The pi...
Ocean Nomad The Ocean Nomad, with what looks like one of the Galaxy jackups and another semi-sub in the Cromarty...
Rigs in front of Fyrish The West Venture and another semi-sub anchored in the Cromarty Firth with various service vessels. I...
GlobalSantaFe Glomar Arctic IV Picture taken at night off Invergordon with a supply vessel nearby.
Sedco 704 anchored off Saltburn. Saltburn is on the Cromarty Firth in northern Scotland. For the last 20 years it's been used for sto...
Ocean Alliance Ocean Alliance in the Cromarty Firth, prior to completion work carried out at Invergordon.
Pentagone 84 Before eventually being broken up in the Cromarty Firth.
Sante Fe Rig 140 Sante Fe Rig 140 leaving the Cromarty Firth on board the Mighty Servant 3. Date approximate. To b...
Maersk Explorer at Baku Baku, the capital of Azerbaijan, lies on the Caspian Sea. As well as offshore fields, oil also exist...

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