Improvement and application of hydraulic jar for high-pressure ultra-deep well;
高压超深井液压震击器的改进及应用
By example of 95 mm TR jar and calcu lation of it, it is thought that by selecting type and number of washer accordi ng to number of its slot, the scope of packaged angle of the jar can be reached.
在保养TR调时震击器时,常遇到如何将组装角调整到45°~60°之间的问题,通过以95mmTR调时震击器为例,经计算可知根据垫圈槽数,选择垫圈的类型和数量,可将震击器组装角调整到合适的范围。
Jarring tool may use to unfreeze effectively, So how to calculate the dynamic Ioading accurately in jarring is an important work in jarring.
关于震击动载荷的计算说法不一,本文根据震击器上击器的工作原理,应用动力学分析方法,建立了向上震击作用中钻柱的动力学方程,分析了震击作用时弹性波在钻柱中的传播情况。
Development and application of the fully hydraulic while-drilling bumper sub
全液压式随钻震击器的研制与应用
In light of the commonly seen downhole breakdown of drilling pipe sticking in the drilling process,the new-type fully hydraulic while-drilling bumper sub was developed.
针对钻井过程中常见的井下卡钻事故,研制了新型全液压式随钻震击器。
oil-sealed jar safety joint
油封式震击器安全接头
Connecting devices--Flat quick-connect terminations for electrical copper conductors--Safety requirements
GB17196-1997连接器件连接铜导线用的扁形快速连接端头安全要求
GP shear-out safety joint
砾石充填剪切安全接头
shear pin safety joint
剪切销钉式安全接头
shear pin tubing safety joint
剪切销式油管安全接头
3-conductor polarized connector. Right-click for male or female connector.
三导线极化连接器。右击指定插头或插孔连接器。
Assessing the safety of fully welded body pipeline ball valve
全焊接阀体管线球阀焊接接头的安全评估
Study on Safe Assessment for Undermatched Weld Joint of Pipeline;
低匹配管道焊接接头的安全评定研究
The Server-side Security Configuration on Prevention SQL Injection Attacks
SQL注入攻击防范中服务器端安全配置
Effects of Welding Process on Cryogenic Safety of Welded Joint of 16MnR Steel
焊接工艺对16MnR钢焊接接头低温安全性的影响
Line stretcher. Right-click for male or female connectors.
线拉伸器。右击可指定为指定插头连接器或插孔连接器。
diamod-enhanced hammer bit
金刚石镶齿震击钻头
Operation rules should be strictly followed. The instrument adapts with a mono phase three pin plug, which connects to the earth for safety.
严格按操作要求使用仪器,本仪器采用单相三线插头，连接地线以确保用电安全。
Do not defeat the safety purpose of the grounding type plug
不要忽视接地型插头的安全作用
Airbag Control Module Connector Removal
安全气囊控制模组接头拆除
AIRBAG CONTROL MODULE 4-WAY CONNECTOR
安全气囊控制模组４－路接头
Drag onto the page, then right-click to specify male or female connectors.
拖到绘图页上，然后右击可指定为插头连接器或插孔连接器。
2-conductor nonpolarized connector. Right-click for male or female connector.
两导线非极化连接器。右击指定插头或插孔连接器。