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Drilling rig with a top drive with integral traveling block and airlift thread compensator
Drilling rig with a top drive with integral traveling block and airlift thread compensator
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机译:带有顶部驱动器的钻机,带整体式行进块和气举螺纹补偿器
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摘要
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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