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
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
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
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
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。
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。
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。
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
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。
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。
A method of calculating three cone bit diameter by using Excel was introduced,and a formula reduction was given.
在Excel中利用Newton迭代法实现三牙轮钻头直径的计算。
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。
Blast hole tricone rock bits
GB/T13343-1992矿用三牙轮钻头
Prediction and evaluation of systematic reliability of tricone bit
三牙轮钻头系统可靠性的预测与评估
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
Method of Calculating Three Cone Bit Diameter by Using Excel
用Excel实现三牙轮钻头直径计算的方法
CAD system for three－cone bit
三牙轮钻头计算机辅助设计系统的研究
An Integrated Data Management Platform for Design and Manufacturing Process of Three Cone Bit
三牙轮钻头设计制造过程的集成数据管理平台
Anti-seizing test of floating bush of cone bit slide bearing
三牙轮钻头滑动轴承浮动衬套的抗胶合试验
Research on the Feature Recognition System for Three-cone Bit
三牙轮钻头特征识别系统的研究与开发
Development of simulation software of three cone bit based on VB.NET and MATLAB
基于VB.NET和MATLAB的三牙轮钻头仿真软件开发
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
Finite Element Analysis of Journal Bearing Contact of Tricone Bit
三牙轮钻头滑动轴承副接触有限元分析
bridge of the bit
四牙轮钻头牙轮支架
cone type roller bearing rock bit
滚柱轴承锥形牙轮钻头
insert rock bit
镶硬合金齿牙轮钻头
Comparative analysis of drilling characteristics of dia- mond bits and roller bits
金刚石钻头与牙轮钻头钻井特点对比分析
4.14 Drilling with cone (drag) bit in the section.
此段地层采用牙轮（刮刀）钻头钻进。
Research on the simulation of the tooth slippage of the cone bit
牙轮钻头牙齿滑移量规律的仿真研究
Drilling with cone( drag) bit in the section.
此段地层采用牙轮（刀）头钻进。