In order to improve the service performance of emulsion motor which is the most important component of drill rig, emulsion motor's structure and design method were studied.
为了提高钻机核心部件——乳化液马达——的性能，对乳化液马达的结构、设计方法进行了研究。
2
By analyzing the wind disaster of oil rig derrick, the basic reasons of the By analyzing normal work or falls in the service drilling machine derrick in oilfield were analyzed.
从石油井架风灾害分析入手，客观分析了油田在役钻机井架不能正常工作或倾倒的根本原因。
3
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.