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- combination of drilling tools 钻具组合
- The main products: various specifications pliers, hammers, wrenches, screwdrivers, electric pen, electrical drill tools, garden tools, packaged combination of tools, utensils and wood products. 公司主要经营:各种规格钳子,工具箱,工具包,铁锤,扳手,螺丝刀,电笔,钻头电工工具,园林工具,组合套装工具等。
- The max. depth of drilling is about 50 times of drill tools dia and have to see material for drill specially size. 本机种钻孔深度以钻头直径50倍为标准;特殊规格需视加工材质定.
- Through the drilling of thicker conglomerate in large borehole,the new requirement for the manufacture of drilling tools has been put forward. 通过该井大井眼巨厚砾石层的钻进,对钻井工具的制造也提出了新的要求。
- Attention shall be paid to combination of drilling unit,operation,jarring adjustion and maintenance. 最后,对钻具组合、操作要点、上击力的调整及故障维修等提出了几点注意事项。
- The extracting method of on-line wear character signal of drilling tool is studied. 研究了钻削过程中刀具在线磨损状态特征信号+的提取方法。
- In order to improve soft performance of drilling tools of such kind,a hollow rotor distributary's nozzle is put forward for improvement. 为了改善该类螺杆钻具转速软特性,对中空转子分流嘴结构提出了改进建议。
- Combination of drilling and milling,fast mounting and dismounting,the craniotomy drill is manufactured with advanced foreign. 快速装卸,使用国外先进制作工艺生产开颅钻组件,具有洞穿颅骨后自停的功能,确保了手术时的安全性。
- Vibration and offset of riser system in marine drilling under the alternating action of wave force, if terrible, may cause failure of drilling tools and break-off of drilling. 海洋钻井隔水管在交变载荷波浪力作用下发生振动,从而偏离原来的位置,严重时可使钻具遭到破坏,造成钻井中断。
- 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。
- Easy calculating methods used to estimate the distortion of drilling tools in the wellbore and to determine the excluding height of take up packers are presented finally. 对现场估算钻具在井中伸长变形及确定封隔器坐封高度提供了一种简便计算方法。
- 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。
- The diagnosis and treatment of drilling accidents are based on experience and related knowledge,therefore,the combination of case based reasoning(CBR) and rule based reasoning(RBR) will solve the drilling accidents better. 石油钻井中的事故诊断与处理既凭经验又离不开相关知识,为此,将基于实例推理(CBR)和基于规则推理(RBR)两种方法集成为一体,以更好地解决该类问题。
- He had forgotten the combination of the safe. 他忘记了保险箱密码。
- 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。
- She had lots of drill in listening. 她在听力方面受过许多训练。
- A combination of two or more elements or parts. 复合物由两种或多种元素或部分构成的混合物
- The harmonic combination of these tones. 四度和音音调的和谐组合
- The phenomenon of drilling tools leaking caused by fluid spurts is very common in normal operations.However, if the leakage points are not located in time, it will result in great economic loss. 摘要钻具刺漏是困扰钻井生产正常作业的普遍问题,如果不能及时发现并查找刺漏位置,会造成很大的经济损失。
- After months of drilling, oil was found off the coast. 经数月钻探,在沿海找到了石油。