钻杆

After reformation of drill pump, rotary table and drilling rod , the triple-men portable rig has a chieved good results when drilling is in breed zone by netting box and other land areas.

对三人钻机的压水泵、转盘、钻杆部件进行改进后，三人钻机在围网养殖区以及其它陆上钻井时，都取得了良好的效果。

The company opens to set up in 2007 of drill pole and oil set tube car already in 2008 all throw to produce at the beginning of every years.

公司在2007年开建的钻杆油套管车间已于2008年年初全部投产。

Control strictly the tight sealing of the joint of the bit and ensure all the slurry can come back from the hole bottom.

严格控制钻杆接头的密封性，确保泥浆能全部从孔底返回。

CNC Tool: Tool 安威 Taiwan, STANNY fine sebang keep out a knife, BT shank, chuck cutter tube cutter to powerful folder-type holders to extend the pole up discarded fast bit, fine boring holes to fine-tune the system, lock knife Block pull screw bolts, Taiwan Guangjie chuck cylinder rod to extend the handle folder, durable lining Universal milling cutter drill holders, drill chuck Bao Quan, Kyushu, Japan, Japan Institute of precision high-speed SHOEA Dao BORING

数控刀具：台湾AW安威 Evermore粗搪刀刀座，STANNY世邦精粗搪刀， BT刀柄，铣刀把强力铣刀夹头筒夹延长杆舍弃式刀杆舍弃式快速钻头，微调精搪孔系统，锁刀座拉钉螺栓，台湾广杰刀柄延长杆夹头筒夹，耐久搪刀钻铣万用刀杆，铨宝钻夹头，日本九州，日研 SHOEA精密高速刀把镗刀

To this end, the value of self-relying on Steel Pipe Institute, the introduction of all kinds of talent billion a year to spend research and development of new products, launched two years, oil field drill pipe, undersea oil pipeline, special withholding more than 20 high-end Products in 2007 will be high-tech and high value-added products to a share of 41%.

为此，自我价值的钢管研究所，人才亿美元引进各种花的研究和开发新产品为依托，实施两年，油田钻杆，海底石油管道，特别预提更多二十多，2007年年底的产品将是高科技和高附加值产品给予41％的份额。

Durng the construction of continuous underground wall, after the hole is drilled by special drilling machine to set depth, grout is first pressed via the core tube of drilling rod to the hole, sealing device and the reinforced bar cage are then set in the hole, and concrete is finally deposited with the displaced grout is recovered.

本发明涉及一种地下连续墙的施工方法，用专用钻孔机钻孔，达到预定深度后，经钻杆内芯管向孔底压注水泥浆，直至浆面高于易塌孔位置，在注满水泥浆的槽孔中放置封口器，再放钢筋笼，从孔底开始灌注砼，同时由孔中回收被砼置换上来的水泥浆。

These induced in transitional zone piercement of drill pipe and many screw thread failures of tool joint.

塔里木油田山前构造带地质结构复杂，同时强化钻井技术在塔里木油田得到应用，使得钻具在井下的使用环境恶劣，钻具工况复杂，导致塔里木油田钻杆加厚过渡带刺漏和钻具螺纹失效事故较多。

The VCL method and the displacement method are used to calculate the Stress Intensity Factors of semi-elliptical surface crack at the root of pipe screws, on the basis of which a simplified calculating model for screws contact is put forward so as to analyse the fracture intensity for oil drill pipe screw coupling. For the semi-elliptical surface crack with different shape and deep ratio at the root of female and male screws and the corner of male flange, the SIF has been studied systemically under inter-pressure, tension, bend and torsion loads and the approximate formulas encluding the structure parameters of oil drill pipe screw coupling, deep ratio and the shape parameters of surface crack are developed.

对工程实际中的多种石油钻杆接头螺纹连接件，就公螺纹齿根、母螺纹齿根、公螺纹台阶转角处存在的不同形状、不同厚度比的半椭圆表面裂纹，在拉伸、内压、弯曲、扭转多种载荷作用下的应力强度因子作了系统研究，在大量有限元计算基础上，建立了包含接头结构参数、裂纹形状、厚度比在内的近似计算公式。

The analyses of the relationship between drilling parameter and rate of penetration was done,and the principle of coupled driven drilling by improving rotary speed of bit was revealed to increase bit rock-breaking energy to improve penetration rate.

分析了钻井参数与钻速的关系，揭示了复合钻井通过提高钻头转速，从而增加钻头破岩能量来提高机械钻速的机理；在分析井斜原因和钟摆钻具防斜打直原理的基础上，分析了直螺杆钻具和弯外壳螺杆钻具组合的防斜机理以及两者的联系与区别，指出在地层倾角较小时采用直螺杆钻具组合，地层倾角较大时采用弯外壳螺杆钻具组合，以达到防斜打快的目的。

Drilling mud is pumped down the inside of the drill pipe, through jet nozzles in the bit, and into the "annulus".

钻井泥浆被泵入钻杆内部，从钻头的喷嘴流入环形空间。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。