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大庆油田钻井Ｍ公司研制出新型ＺＪ１５Ｄ钻机，并在国内首次应用了先进的变频调速技术，提高了钻井作业的自动化。该项目已通过石油管理局的鉴定。新型钻机采用了先进的交流变频技术，实现了两档无级调速，避免了直流电驱动钻机电刷易磨损和维护困难的缺点，并重点对司钻的工
Daqing Oilfield Drilling Company M developed a new ZJ15D drilling rig and applied the advanced frequency control technology for the first time in China to improve the automation of drilling operations. The project has passed the appraisal of the Petroleum Administration. The new rig adopts advanced AC frequency conversion technology to achieve a two-speed stepless speed to avoid the shortcomings of the brushless DC motor-driven brush wear and maintenance difficulties, and focus on the driller’s work