Invention Grant
US08544537B1 Drilling rig with a top drive with integral traveling block and airlift thread compensator
有权
钻机具有顶部驱动器，带有整体行程块和空气提升螺纹补偿器
- Patent Title: Drilling rig with a top drive with integral traveling block and airlift thread compensator
- Patent Title (中): 钻机具有顶部驱动器，带有整体行程块和空气提升螺纹补偿器
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Application No.: US13780849Application Date: 2013-02-28
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Publication No.: US08544537B1Publication Date: 2013-10-01
- Inventor: Larry G. Keast
- Applicant: Larry G. Keast
- Agency: Buskop Law Group, PC
- Agent Wendy Buskop
- Main IPC: E21B19/084
- IPC: E21B19/084
Abstract:
A drilling rig with top drive assembly consisting of a traveling block housing, sheaves, with axles connected to a pair of links supporting a top drive, and a compressible extendable airbag as a thread compensator for running tubulars into a wellbore, making up tubulars, or breaking tubulars out of a wellbore.
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