In the search for oil and natural gas under the ocean, three general types of drilling rigs are used. ... These rigs float and can be attached to the ocean bottom using traditional mooring and anchoring systems or they maintain their position by using thrusters to counteract winds, waves and currents.

Are oil rigs floating or fixed?

The basics. The official term for a buoyant oil rigs is a floating production system. ... Floating production systems are generally utilised in water depths ranging from 600 to 6,000 feet. The structures feature large mono-hulls and are generally manufactured in the shape of a ship.

Does an offshore oil rig float?

Floating production system: As oil companies expand into ever-deeper waters, they've had to embrace less traditional methods of getting oil up to the surface. This often means deepwater rigs are buoyant and semisubmersible, floating partly above the surface while pumping up oil from deep wells.