A SYSTEM FOR HANDLING PIPES BETWEEN A PIPE RACK AND A DERRICK, AND ALSO A DEVICE FOR ASSEMBLING AND DISASSEMBLING PIPE STANDS

摘要

A system for handling pipes between a pipe rack (16) and a derrick (1), whichderrick (1) is located on a drilling deck (2), in connection with theproduction of petroleum products. The system comprises means (17, 9, 25) ofcarrying pipe lengths (29) between the rack (16) and the derrick (1). It alsocomprises a unit (25) at the drilling deck (2) for temporary storage of atleast two pipe lengths (29) in respective receiving chambers (26, 28). Thereceiving chambers (26, 28) can be moved to and from at least one receivingand/or hand-over position, in which position a pipe handling unit is arrangedto hand over a pipe length to a receiving chamber (26-28) and/or retrieve apipe length from a receiving chamber (26-28). Preferably the unit (25) isrotatable and located under an opening (28) in the drilling deck (2).