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- percussive drill tool 冲击钻具
- Keywords Percussive drilling;Bottomhole assembly;Drilling tool;Energy;Parameter; 冲击钻井;井底动力钻具;钻井工具;能量;参数;
- By the action of high roatry speed,excentric shaft connection intensifies the fatigue failure of drill tool. 为了达到较好的防斜目的,必须增大钻进时钻头的转速,在高转速的作用下,偏轴接头加剧了钻具先期疲劳失效。
- The operation performance of PDC bits with screw drill tool appplied now in oilfield were analyzed comprehensively. 综合分析了目前使用的PDC钻头和螺杆钻具工作特性。
- The drilling tool should be measured precisely. 请准确丈量钻具。
- These two days we have been laying down drill tools. 这两天我们都在甩钻具。
- This paper analyses the influence of excentric shaft connection on force case of drill tool,and discusses the causes of drill tool failure. 文中分析了使用偏轴接头对钻具各部分受力情况的影响及导致钻具失效的原因。
- Two methods for determining the critical length of the drill tool section below the hydrodynamic propulsor are presented. 给出了确定井下液力推进器以下钻具临界长度的两种方法。
- At last,accor ding to the different design claims,enumerate method and iteration of steerable drill tool is designed,and give some design exemples in different conditions. 最后,根据不同的设计要求,提出了设计导向钻具的枚举法和迭代法,并给出了各种条件下的设计示例。
- Diamond drilling replaced percussion drilling. 金钻探取代了冲击钻探。
- In order to attain the goal,the rotary speed of bit must be increased.By the action of high roatry speed,excentric shaft connection intensifies the fatigue failure of drill tool. 为了达到较好的防斜目的,必须增大钻进时钻头的转速,在高转速的作用下,偏轴接头加剧了钻具先期疲劳失效。
- However, the SEP in diamond rotary drilling was higher than the SEP in percussive drilling in lightly weathered hard as well as in extremely hard rock. 在微风化的坚硬与极坚硬岩石中，金刚石旋转钻进比功则明显高于冲击凿碎比功。
- This paper explains and proves briefly that the incident wave differes from the percussive force in percussive drilling, and both are two different conceptions. 本文简要地论证和说明了冲击凿入系统中的入射波和凿入力(即冲击力)是两个不同的力。
- This paper introduces the automatic drilling principle, the hardware composition and software program in the windlass percussive drilling by the microcomputer control system. 介绍了卷扬式冲击钻进过程中，微机控制实现自动钻进的基本原理、硬件的组成和软件的设计。
- Get all the drilling tools unlashed. 解开所有钻具。
- Based on certain mechanical quality of the rock, the analysis on the Polycrystalline Diamond Compacts (PDC) bit and the rotary percussive drilling is carried out. 在管棚支护所钻岩石的力学性质基础上,对管棚支护钻孔所采用PDC钻头和回转冲击的钻进方式进行了比较分析。
- Our Jacobs (Suzhou) came to Suzhou Industrial Park on 1996, and the total investment is US$16 million.We are the professional manufacturer of drill tool, portable power tool chucks. 本公司于1996年进入苏州工业园区;总投资额1;600万美元.;公司专业生产及经营各类钻具夹头，刃具夹固件，便携式工具及配件。
- Keywords impact;wave mechanics;hydraulic percussive drill;design; 冲击;波动力学;液压凿岩机;设计;
- Four experimental wells in Tahe Oilfield all drilled to the planed depth without any drill tool trou... 该技术的推广应用,必将对塔河油田剩余油田挖潜及增储上产起到积极的作用。
- This paper analyses how the whipstocking screw drill tools easily trip in casing. 因此，结构弯角必然较大，这就提出了这种钻具在套管内能否顺利下入的问题。
