RISER HANDLING ON A DRILLING RIG AND A FLIP AND SERVICE MACHINE FOR RISER HANDLING ON A DRILLING RIG

摘要

An offshore drilling rig comprising: a drill floor deck having one or more holes, each defining a well centre; one or more masts upwardly extending relative to the drill floor deck, and one or more hoisting systems, each supported by at least one of the one or more masts and configured for hoisting and lowering tubular equipment through at least one of the one or more well centres; a storage area for accommodating marine riser joints in upright orientation side by side in respective upright storage positions; a riser handling apparatus, different from the hoisting systems, adapted to move at least one of said marine riser joints along a movement path between its upright storage position and a prostrate maintenance/transfer position on a maintenance/transfer area, which movement path does not intersect any of the well centres.