发明名称 SINGLE JOINT DRILLING SYSTEM
摘要 A pipe handling system comprising a pipe erector operable to move a pipe from a horizontal storage position to a substantially vertical position wherein an upper end of the pipe is disposed above an elevated drill floor of a drilling rig and the pipe is offset from well center The pipe handling system also comprises an upper vertical support configured to support the pipe in the vertical position independently of said pipe erector
申请公布号 US2007017704(A1) 申请公布日期 2007.01.25
申请号 US20060458534 申请日期 2006.07.19
申请人 NATIONAL-OILWELL, L.P. 发明人 BELIK JAROSLAV
分类号 E21B19/14 主分类号 E21B19/14
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