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Offshore Oil Rigs and Platforms

Offshore oil rigs and platforms are enormous structures set up in the middle of oceans and lakes to drill beneath the earth's surface for crude oil. Ask questions about rigs and platforms — some of the largest movable man-made structures in the world — in this category.

687 Questions

Was there a helicopter crash to oil rig off Aberdeen?

Yes. As a matter of fact, there has been more than 30 helicopter crashes or safety incidents being reported in the 30 years since drilling began in the North Sea. The last 2 incidents being in 2009, only 6 weeks apart where the in the first incident a helicopter had to ditch into the sea, but all personnel on board survived. In the second incident the helicopter crashed into the sea, fatally injuring all 16 personnel on board.

How many offshore oil rigs are there?

By offshore oil rigs, I assume you mean "drilling rigs." A production platform is not a drilling rig, but it might have a drill rig (called a platform rig) in place on it from time to time to service the wells that have already been drilled.

There are 454 "jack-ups", whose long truss like legs are lowered until they reach the seabed, and the deck is lefted highter to provide a stable base from which to drill

In addition, there are 234 floating drilling rigs that operate in water too deep for conventional.

Answer: 688 total.

Is offshore drilling a good idea?

When you know what you are doing, and a certain that it is safe what you do, then it is a idea to pursue.

The oil recovery in the North Sea is all "Offshore" and also pretty deep water. The constructions here are much taller than anything else on earth, but stands on the ocean floor and the sides takes the beating of the tide and high waves - more than 100 feet. A drill head on the sea floor becomes like a space mission: the equipment placed on the seabed cannot be repaired or adjusted , just replaced. So work follows strickt routines, just as a space launch does a "count-down" and use "checklists" so will work on an offshore recovery rig encompass adherance to strict procedures and regulation for the work. Computers and robots are used to replace humans on the seabed, and also these cannot fail - there is no "reboot" button.