AN OFFSHORE DRILLING SYSTEM

摘要

A drilling rig (2) having a deck (7) capable of being used offshore and a method for commissioning a well using the drilling rig and a method for decommissioning a well using the drilling rig, wherein the drilling rig comprises: a cantilever (1) which is mounted so as to be moveable in a first direction (A) and a second direction (B, F); a Multi Purpose Tower (3) mounted on the cantilever (1); a supporting cart (6) disposed between the cantilever (1) and the deck (7) which in turn is movably fixed on the deck of the drilling rig (2); at least two friction reducing devices (43, 42; 20, 21) attached to the supporting cart; and wherein the cantilever can slide relative to the drilling platform.