Invention Grant
- Patent Title: Apparatus for stabbing pipe when using an iron roughneck
- Patent Title (中): 使用铁膛时刺伤管道的装置
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Application No.: US11890582Application Date: 2007-08-08
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Publication No.: US07699098B2Publication Date: 2010-04-20
- Inventor: William R. Hamilton
- Applicant: William R. Hamilton
- Applicant Address: US TX Houston
- Assignee: Blohm & Voss Oil Tools, LLC
- Current Assignee: Blohm & Voss Oil Tools, LLC
- Current Assignee Address: US TX Houston
- Agency: Gifford, Krass, Sprinkle, Anderson & Citkowski, P.C.
- Main IPC: E21B19/00
- IPC: E21B19/00 ; E21B19/18

Abstract:
Drilling apparatus for receiving, moving and aligning pipe sections as they are added to a string of pipe on a drilling rig when using an iron roughneck. After the iron roughneck is moved to well centerline and engaged with the box connection of the pipe suspended in the well bore, a hydraulically controlled pipe engagement mechanism is extended radially away from the iron roughneck and in the general direction of the pipe rack. The pipe engaging mechanism receives the lower end of the next stand of pipe to be added and is hydraulically retracted to lock around the pipe stand and bring the pipe stand into alignment with the pipe string suspended in the well bore.
Public/Granted literature
- US20090038857A1 Apparatus for stabbing pipe when using an iron roughneck Public/Granted day:2009-02-12
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