通过关联度和综合指标值的计算，客观地给出了减速涡轮钻具设计方案综合评价结果。
By computation of the correlation degree and the comprehensive index value, the comprehensive evaluation result of the reducer-turbodrill design schemes is obtained objectively.
应用CFD软件对涡轮钻具组的内流场进行了分析研究，重点讨论了模拟压降和扭矩。
The internal flow field of multi-turbine is studied by CFD software, and the simulated pressure drops and torques are discussed in this paper.
井下减速器属于井下动力工具涡轮钻具的配套设备，也可用于采油领域，目前国内尚处于研制阶段。
Underwell reducer, categorized as downhole tools of turbodrill supporting equipment, is now still in the research and development stage. It can also be used in oil extraction fields.
在简要阐述国内典型高陡构造特征的基础上，介绍了我国自主研制的涡轮钻具的结构、能量转换方式以及特点。
This paper briefly introduces the typical high-steep structure of China and describes the structure and the energy converting method and characteristics of the turbodrill self developed.
叙述了180涡轮钻具用减速器的传动比，齿轮传动，端面机械密封和偏心短圆柱轴承的设计计算过程和有关处理办法。
The design calculation process and related process methods for transmission ratio, gear transmission, end mechanic sealing and eccentric short roller bearing used for 180 turbine drill are described.
叙述了180涡轮钻具用减速器的传动比，齿轮传动，端面机械密封和偏心短圆柱轴承的设计计算过程和有关处理办法。
The design calculation process and related process methods for transmission ratio, gear transmission, end mechanic sealing and eccentric short roller bearing used for 180 turbine drill are described.
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