1) tri-cone combination bit
三牙轮组合钻头
1.
00m with diameter φ700mm,using our own making φ700mm tri-cone combination bit carried out reaming operation after second hole-in target hitting.
00m、井径φ700mm,在二次成井中靶后利用自制φ700mm三牙轮组合钻头进行扩孔作业。
2) combined cone type cutting head
组合式牙轮钻头
1.
A brief introduction is made on the combined cone type cutting head with the rock fragmentation analysed, and comparison is conducted with the drag bit and the roller type cutting head in characteristics.
对组合式牙轮钻头作了简要介绍，分析了其碎岩原理，并与刮刀钻头及滚刁钻头进行了特性对比，阐述了设计、使用要点。
3) tri-cone bit
三牙轮钻头
1.
Research on cone/bit speed ratio simulation model of tri-cone bits;
三牙轮钻头轮体速比仿真模型研究
2.
In this paper, the kinematics simulation model of tri-cone bits was established according to the roller cone bit geometry and kinematics.
根据钻头几何学和运动学建立起了随钻运动的三牙轮钻头的计算机运动学仿真模型,该仿真模型既表示出了钻头上各牙齿的形状、大小和在钻头上的分布情况,又可真实反映钻头钻进过程中各牙齿的瞬时位置和相互关系。
3.
The measurement and analysis of recess by tri-cone bit teeth and bottom-hole pattern is an important link of drilling test,a key means of studying rock-breaking mechanism,and valuating rock-breaking efficiency.
以三牙轮钻头上单齿圈为对象进行试验,研究钻头破碎岩石后得到的破碎坑。
4) tricone bit
三牙轮钻头
1.
The erosion wear characteristics of Ni65 and contrastive materials Ni67 and Ni60+35%WC were studied according to the actual working conditions in the sprue of tricone bit.
针对三牙轮钻头流道内实际工况,研究了钻头材料N i65和对比材料N i67和N i60+35%WC的冲蚀磨损特性。
2.
In this paper the forming mechanism of three lobes pattern on the bottomhole rock surface is studied deeply when the tricone bit is used.
本文对使用三牙轮钻头时在井底岩面上形成三凸起型式的原因进行了深入详细的研究和探讨，同时对三凸起型式存在的一些争议问题进行了较全面的分析和阐述，得到了一些有实际意义的结论，为以后分析和诊断钻头及钻柱在井下的振动特征奠定了理论基
3.
To simulate the actual working conditions in the sprue of tricone bit,the cavitation erosion test of Ni67 alloy was done.
对Ni67合金进行了模拟三牙轮钻头流道内实际工况条件下的空蚀磨蚀试验,用失重法评价了Ni67材料的抗空蚀磨损性能,并分析了空蚀试件表面磨痕。
5) three-cone bit
三牙轮钻头
1.
The research and development of three-cone bit parametric drawing system;
三牙轮钻头参数化绘图系统的研究与开发
2.
Simulation model of drilling process of three-cone bit
三牙轮钻头破岩过程计算机仿真模型
3.
The development of simulation software of three-cone bit based on DLL technology
基于动态链接库的三牙轮钻头仿真软件开发
6) tri-cone rock bit
三牙轮钻头
1.
The structure of tri-cone rock bit is complicated.
三牙轮钻头是石油钻井的重要工具，其性能和质量对钻井速度和成本影响很大。
补充资料：牙轮
1.即齿轮。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条