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。
By using this jar together with Model YJQ jar accelerator, more remarkable effect can be obtained.
这种震击器与YJQ型震击加速器一同使用，可获得更显著的效果。
accelerometer type seismometer
加速度式地震检滤器
An instrument used to measure acceleration.
加速计，测震仪用于测量加速度的仪器
Theoretical and Experimental Research on the Photo-electronic Integrated Acceleration Seismic Geophone;
光电集成加速度地震检波器的理论与实验研究
Theoretical and Experimental Research on the Si-based MOEMS Acceleration Seismic Geophone;
硅微光机械加速度地震检波器理论与实验研究
Research and Fabrication on the Si-based MOEMS Acceleration Seismic Geophone;
硅基微光机械加速度地震检波器的研制
pressure balanced drilling bumpersub
压力平衡式钻井震击器
oil-sealed jar safety joint
油封式震击器安全接头
fishingcoring jar
打捞和取心用震击器
Optimizing design of piezoelectric accelerometer under high impact environment using Msc.dytran software
利用Msc.dytran优化高冲击压电式加速度传感器设计
double-mode cyclotro
双重加速法回旋加速器
Theoretical and Experimental Research on the Michelson Interference Integrated Optical Acceleration Seismic Geophone;
迈克尔逊干涉型集成光学加速度地震检波器的理论与实验研究
The Engineering System for Detecting Earthquake Acceleration Based on Micromachined Accelerometer;
基于微型传感器的地震加速度监测系统技术研究
Development of Three-component All-fiber Acceleration Seismic Geophone Digital Signal Processing System;
三分量全光纤加速度地震检波器数字信号处理系统的研制
Theoretical and Experimential Research on Michelson All-fiber Acceleration Seismic Geophone;
迈克尔逊型全光纤加速度地震检波器理论与实验研究
Theoretical Analysis and Application Research on Signal Processing of the Photo-electronic Integrated Acceleration Seismic Geophone;
光电集成加速度地震检波器信号处理理论分析及应用研究
Disaster can be the Accelerator of Development for China:After the 2008 Wenchuan Earthquake;
灾难是民族和国家进步的加速器——写在2008年四川汶川大地震之后
An analysis of the failure of the while-drilling bumper sub and damper and its solution
随钻震击器及减震器失效分析与解决方案