The construction, control and scheme selecting of the electric drive control system of electric drive oil drilling rig have been deeply studied in this paper.
针对电驱动石油钻机电气传动控制系统的构成、控制、方案选择进行了深入研究。
However, the study in the hydraulic top drive only used in the service machine, poor-boy rig, also there have no research on deep and ultra-deep series of hydraulic top drive unit in China.
然而，对液压顶驱的研究，还停留在修井机、和浅井钻机上。国内目前还没有深井和超深井系列的液压顶驱装置。
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