BIG ASSEMBLY WITH MOVABLE RIG FLOOR UNITS

摘要

The invention relates to a rig assembly for use in the oil and gas exploration and production industry. In an embodiment of the invention, a rig assembly (12) for a drill ship (10) is disclosed. The rig assembly (12) comprises a rig floor receiving area (14); a plurality of movable rig floor units (18, 20, 22 and 24), each rig floor unit (18, 20, 22 and 24) configured for location in the rig floor receiving area (14), to thereby define a rig floor of the rig assembly (12); and a transporter (26) configured to receive any one of the rig floor units (18, 20, 22 and 24), for transporting a selected one of the rig floor units (18, 20, 22 and 24) from a storage area (28) to the rig floor receiving area (14).