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- 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。
- 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。
- Get all the drilling tools unlashed. 解开所有钻具。
- 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。
- 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。
- Leaving home was a terrible wrench for him. 他觉得离开家十分痛苦。
- 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。
- CASTON has experts from Xuanhua machinery plant with superiority on down-the-hole drilling tool and anchorage drill pipe. 凯司通公司拥有多名原宣化采掘机械厂的专家和工程技术人员，在潜孔、锚固钻杆生产方面具有无可替代的优势。
- It's hard to get at the spark plug without a proper wrench. 没有一把合适的扳钳，要抓住那个火花塞是困难的。
- A drilling tool. 钻子一种钻凿用工具
- It was a wrench to leave the old home. 离开这个老家非常痛苦。
- He gave a wrench to his ankle when he jumped down. 他跳下去的时候扭伤了足踝。
- Separation from her children was a terrible wrench. 同她的孩子们分别是一项很大的痛苦。
- On the basis of minimum deformation principle,deformation of the drill tools in casing is analysed,undetermined boundary problem during deformation is solved. 文中根据最小变形能原理对钻具在套管内下入过程中的变形进行分析，解决了变形过程中边界待定问题，并对?
