To rent a Honghua top drive is to experience an efficiency-jump of drilling.
租赁一台宏华顶驱，体验钻井效率的再一次飞跃。
The top drive drilling system, divided into electrical top drive and hydraulic top drive.
顶部驱动钻井装置，分为电驱动顶驱和液压驱动顶驱。
Briefly introduces the structure, working principle and technical features of DQ70BS top drive device.
简述了DQ70 BS顶驱的结构、工作原理和技术特点。
In view of this, author launched the design and research in a full-hydraulic top drive drilling system.
鉴于此，笔者开展了全液压顶部驱动钻井系统的设计与研究。
Comparative Analysis of Electric drive top drive drilling system and hydraulic driven top drive drilling system.
对比分析电驱动顶驱和液压驱动顶驱。
The driller slowly hangs off the traveling block or top drive in accordance with the derrickman's or floorman's signal.
看着井架工或钻工的手势，司钻慢慢的把游车或顶驱挂住。
Prior to lowering the top drive system or rigging down, ensure that sufficient wraps of drilling line remain on the drum.
在下放或拆卸顶驱系统之前，要保证辊筒上留有足够的大绳圈数。
Having completed calculation of top drive counter-torque and mast mechanics analysis, an upgrading proposal has been put forward.
完成了安装顶驱后反扭矩的计算和井架力学分析，并提出了井架结构的改造方案。
The Floormen spin out the connection using the air spinner, or if applicable, the Driller utilises the top drive to spin out the connection.
钻工使用气动旋扣器卸开扣，或者如果可能，司钻用顶驱卸开扣。
Through technical and economical evaluation of the top-drive service project in Sudan, this paper presents an economic evaluation procedure of international projects that can guide …
通过对苏丹顶驱技术服务项目的经济效益评价，介绍了一种境外项目的经济评价方法，对项目的运行具有指导意义。
Through technical and economical evaluation of the top-drive service project in Sudan, this paper presents an economic evaluation procedure of international projects that can guide …
通过对苏丹顶驱技术服务项目的经济效益评价，介绍了一种境外项目的经济评价方法，对项目的运行具有指导意义。
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