An oil rig is a structure that houses equipment such as the derrick, pipe, drill bits and the cables needed to extract the oil below the earth’s surface. Oil rigs can be offshore drilling in the ocean or land. Although both locations carry large amounts of oil in the oil market, drilling rigs offshore have been under the public eye since the 2010 oil spill off the coast of Louisiana in the Gulf of Mexico.
According to Rigzone, the structures most commonly used mobile offshore drilling, called jackups (elevators), have lower supports. The hull or main deck area is supported by digital strategy consultancy or half-timbered open legs. These units drilled to 350 feet (105 m) deep.
There are two types of drilling equipment used in jackups. One of them, the most recent and used, is the jackup cantilever which has mounted drilling tower on an arm extending from the main deck. These allow drilling with or without platforms.
The other type, the splined or keyway jackup has an opening in the deck with a derrick placed on it. This type of unit can be raised on a smaller and drill through the hull structure.
Other oil rigs are floats or units semisubmersible offshore drilling floating in giant hollow columns or pontoons that when filled with water can dip the rig to the required depth. This type of equipment is normally used to drill exploratory wells (new wells) and can withstand rough seas.
Stiller permanent structures offshore steel or cement, called fixed platforms, drilling rigs host the opening new development wells. These large units also house crew and equipment and are connected to the ocean floor. Most of these are on the continental shelf to depths of 1700 feet, and because of its ability to directional drilling can bind to numerous wells to a radius of five miles.
Another type of rig offshore demand is the tower consisting of a flexible tower and close with the support of a foundation pile. Its cover operates both conventional drilling and for the production, and this robust unit supports lateral forces, and water diversions from 1500 to 3000 feet deep.
Drill ships usually are built hulls tankers have been equipped with devices used in drilling and deepwater drilling experimental. Dynamic positioning systems keep the boat on the well.