新型低故障顶驱关键技术研究与应用

Research and application of key technologies for new low fault top drive

针对传统顶驱结构复杂和故障率高的问题,研发了一套适用于4000 m钻机的新型顶驱系统。新型顶驱采用永磁同步电机直接驱动主轴旋转钻进,采用水冷散热技术进行电机冷却。与传统顶驱相比,新型顶驱将液压站布局在地面,同时省去了减速箱、润滑泵站、冷却风机等部件,使得零部件数量减少45%以上。将提环直接与电机壳体连接,主轴承置于电机转子内部,缩小了顶驱的尺寸,减少了主承载件的数量。导轨结构进行了优化设计,提高了操作的便捷性。新型顶驱具有结构简单、故障率低等优点。已在20余口钻井中进行了现场应用,验证了其可靠性,提升了作业效率。该新型顶驱可广泛应用于石油天然气钻井与修井、地质勘探、页岩气和煤气层勘探等领域,具有良好的市场应用前景。

Aiming at the problems of complex structure and high failure rate of traditional top drive rigs,a new top drive system suitable for 4000m drilling rigs was developed.The new top drive uses a permanent magnet synchronous motor to drive spindle rotary drilling directly,and the water cooling technology is used for motor cooling.Compared with the traditional top drive,the new top drive lays out the hydraulic station on the ground,while eliminating the gearbox,lubrication pump station,cooling fan and other components at the same time,so that the number of parts reduced by more than 45%The lifting ring is directly connected with the motor housing,and the main bearing is placed inside the motor rotor,which reduces the size of the top drive and reduces the number of main loaders.The guide rail structure has been optimized to improve the convenience of operation.The new top drive has the advantages of simple structure and low failure rate.It has been applied in more than 20 wells in the field,which has verified its reliability and increased the operation efficiency.The new top drive can be widely used in oil and gas drilling and workover,geological exploration,shale gas and coal seam exploration and other fields,and has a good market application prospect.