查询词典 downhole

In this paper,an automated tripping system for downhole pipe string was put forward,which includes the tractor hoist,the derrick,the hydraulic tongs,the movable casing elevator,the fixing spider,the vertical pipe rack and the controlling system.

提出了一种自动起下管柱作业系统，主要包括通井机、井架、液压钳、筒式吊卡、卡瓦支座、立式排管架和控制系统等，支座卡瓦为弹性体微条嵌入式结构，筒式吊卡能自动卡入和松开管柱接箍，排管架可实现管柱的立式排放，控制系统协调各部分的工作。

In the process of oil drilling, drillstring and rock bit are main drilling tools. The fact of their failure would cause serious downhole accidents.

在油气田钻井过程中，钻柱及钻头是主要的钻井工具，钻头及钻柱的失效将导致严重的井下事故。

Connecting with the practices of the shafting work in the water-source location of Sujigou, Zhungghar Banner, this paper expounds the technical details and drilling measures of the downhole hammer in the shafting process.

结合准格尔旗苏计沟水源地凿井工程的实践，阐述了潜孔锤凿井过程中的技术细节和钻进措施。

Coal seam methane well ; drilling technology ; non-linear contact analysis ; Downhole Hammer Drilling ; rotary drilling

吉林大学；张龙飞煤层气井；钻井工艺；非线性接触分析；潜孔锤钻进；回转钻进

According to the analysis, the nonlinear effects are mainly on the stiffness of downhole derricks steel structure.

本文研究了井架结构的极限承载力问题。

Several important downhole mechanisms are discussed in the paper.

就几种重要的井下机构进行了研究。

In this paper, the present development and appliance of the hydrocyclone applied downhole is introduced.

本文介绍了井下应用水力旋流器的目前发展状况及应用情况。

The purpose of this paper is to realize the downhole operation simulation system with the technology of Scene Simulation.

本文旨在建立一套利用视景仿真技术开发的油田井下作业视景仿真系统。

The designing and debugging of downhole television system.

井下电视系统的设计与调试。

The method introduced in the paper has been applied to diagnosing downhole faults of the deep wel...

本文方法已应用于深井泵系统的故障诊断中，并取得了满意的效果。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。