| 摘要 |
<p>A method and apparatus for moving pipe (22) on a rig floor (11) between a number of different stations including an off-floor rack (26), a preparation opening (21), a borehole, and a storage area, such that tubulars can be load ed onto the drill floor, prepared at the preparation opening, loaded onto or of f of the storage rack (26 and 27), and connected to a drill string (19) while drilling is simultaneously conducted at the borehole, comprising at least tw o pipehandling devices (24and 29) for communicating pipe (22) between a storag e area (26 and 27) off the drill floor (11), a storage area on the drill floor (11), at least one preparation opening (21), and a drill opening (18).</SDOA B></p> |
