| 摘要 |
Disclosed herein are embodiments of an offshore drilling rig comprising - a drill floor deck (107) having a hole defining a first well centre (123a); - a first mast (104) upwardly extending relative to the drill floor deck; - a first hoisting system (105a) supported by the first mast and configured for hoisting and lowering tubular equipment through the first well centre; wherein the load bearing structure of the first hoisting system is displaced from and located on a first side of the first well centre; - first pipe handling equipment (136, 132a,b; 2592) for moving tubular equipment to the first hoisting system so as to allow the first hoisting system to hoist or lower the tubular equipment through the first well centre; wherein the first pipe handling equipment is operable to move tubular equipment at least partly underneath the load bearing structure and/or through a gap formed in said load bearing structure. |
