Type of Offshore Oil Rigs
What are oil rigs? It is a structure or building that being used to house workers and machinery needed to drill wells for oil and gas. Below are some types of offshore structures: Technical Data used in the field explained in oil and gas courses in rawalpindi.
This type of rig is built on steel or concrete legs anchored directly onto the seabed, supporting a deck with space for drilling rigs, production facilities and crew quarters. Such building are, by virtue of their immobility, designed for very long term use. Various types of structure are used, steel jacket, concrete caisson etc. Steel jackets are vertical sections made of tubular steel members, and are usually piled into the seabed. Fixed platforms are economically feasible for installation in water depths up to about 1,700 feet (520 m). Some more details of oil and gas courses in rawalpindi are as under.
The platform has hulls (columns and pontoons) of sufficient buoyancy to cause the structure to float, but of weight sufficient to keep the structure upright. Semi-submersible is a mobile structure, can be moved from place to place; can be ballasted up or down by altering the amount of flooding in buoyancy tanks; they are generally anchored by combinations of chain, wire rope and/or polyester rope during drilling and/or production operations, though they can also be kept in place by the use of dynamic positioning. Operation area is in water depths from 200 to 10,000 feet (60 to 3,050 m).
As the name of this oil rigs, it is a kind of platform that can be jacked up above the sea using his legs which can be lowered like jacks.
Typically used in water depths up to 400 feet (120 m), and might be some design up to 170 meters. They are designed to move from place to place, and then anchor themselves by deploying the legs to the ocean bottom using a rack and pinion gear system on each legs. TSK Training for Skills and Knowledge is the best institute in Rawalpindi Islamabad for Pakistani Students who wants to join oil and gas courses in Islamabad.