The correctness of the vibration law analysis is proved by application practice.
振动规律的实际应用反映了钻柱横向振动规律理论分析的正确性.
Therefore, in this paper kelly bushing torque gauge that consists of launcher.
通过改造方补心, 研制了方补心扭矩仪,可直接测量钻柱扭矩.
Pick up drill stem test tool.
提起钻柱测试工具.
The drill fluid in the drill stem increases the inertia of lateral vibration.
钻柱内的钻井液增加了钻柱横向振动的惯性质量.
But it needs Drilling Stem Test to get reservoir off - take potential and formation parameters.
但是,要确定储层的产能和地层参数需要通过钻柱测试或缆式中途测试等才能实现.
In the course of sidetracking of horizontal holes, lateral drill string vibration often occurs.
在水平井的侧钻过程中, 钻柱很容易发生横向振动,引发钻柱失效、井眼扩径等严重事故.
The torsional model is solved by numerical method by considering the boundary condition and initial condition.
在给定初始条件和边界条件的情况下,采用数值计算方法求解了钻柱扭振模型.
Heavy torque and abrasion on casing are serious problems in drilling in slim hole.
高钻柱扭矩和套管过度磨损是小井眼钻井中存在的严重问题.
This paper emphasizes the longitudinal vibration of DS with actual boundary condition lower end of DS.
本文从建立符合实际的下端边界条件入手,着重研究了钻柱的纵向振动.
The longer the single drill pipe , the lesser the critical compressive force of drill stem.
钻杆的单根长度越长, 钻柱所能承受的临界载荷越小.
Calculating results show that fluctuation pressure decrease with eccentricity between drill stem and well bore increase.
计算结果表明:随钻柱与井眼间偏心度增大,波动压力减小.全偏心情况下的波动压力大约只有同心情况下的一半.
The rotary carriage provides rotary and vertical motion to the drill string and bit.
转动滑架为钻柱和钻头提供转动和垂直移动.
This paper analyzed the practical situation of drilling string lateral vibration during drilling, established mechanical model.
文章针对钻井工程中钻柱横向振动的实际情况, 建立力学模型.
Mechanics model for lengthwise vibration analysis of deep well drill string is established.
本文以整体钻柱为研究对象,建立了深井钻柱纵向振动分析的力学模型.
Decreasing friction of drilling string is a key to finish drilling in slim hole.
减少钻柱扭矩,防止套管磨损的方法之一是使用非旋转钻杆保护器.