Patent ID: 7628225

Claim:
A system for building and handling a tubular string of a drilling device, wherein said drilling device comprises a drill floor and a drilling derrick extending from said drill floor, wherein said drill floor has an extension in a first plane being substantially perpendicular to a first direction, said system comprising a suspension device being fixedly attached to said drilling derrick, wherein a projection of said suspension device in said first direction onto said first plane is situated outside said drill floor, wherein said drilling device comprises a drilling centre and a drilling device trolley is arranged to transport a component to and from said drilling centre, characterized in that said drilling device trolley further comprises an attachment means arranged to attach a hang-off device to said drilling device trolley, said hang-off device being situated at a distance in the said first direction from said suspension device, wherein said hang-off device is arranged to, for at least part of the time, be in a working position, so that a projection of said hang-off device, in said first direction onto said first plane is situated outside said drill floor, and wherein said hang-off device comprises two from each other detachable parts which are arranged to be situated at substantially opposite sides of an opening centre.