Additionally, there are two types of elevating devices. Once the jackup is on location, the legs are lowered to the ocean's floor and the rig hull and drilling equipment is elevated well above the ...

Types of Semisubs Based on the way the rig ... The first incarnation of this type of drilling rig, bottle-type semisubs originally were conceived as submersible rigs. As a submersible, the bottles ...

The total number of active drilling rigs for oil and gas in the United States rose this week, according to new data that Baker Hughes published on Friday, after a 4-rig increase in the week prior.