Main parts such as crownblock, mast, substructure, rotary table and travelling system of drilling rig meet API standard.
钻机天车、井架、底座、转盘及游动系统等主要配套件符合API规范。
Drillers depth is the first depth measurement of a wellbore and is taken from the rotary table level on the rig floor.
司钻深度是井筒的首次深度测量，并从钻台上的转盘面算起。
Drillers depth is the first depth measurement of a wellbore and is taken from the rotary table level on the rig floor.
司钻深度是井筒的首次深度测量，并从钻台上的转盘面算起。
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