查询词典 drilling stem

According to the requirement of oil drilling foreign and domestic, the international standard for oil equipment and national oil drilling codes. In order to prevent fault which flaming gas or vapour may be present in the air in sufficient quantities to be explosive or ignitable. We designed and made explosion-proof electric controlling equipment for oil field.

根据目前国内外石油钻井装备的要求，以及符合现代化钻井生产的规范化要求，为防止在石油钻井过程中，控制设备产生火花而引起可燃性气体发生爆炸，本公司设计生产了油田钻井液循环罐防爆电气控制系统。

Henan Shenlong Petroleum Drilling Tools Co., Ltd. was established in October 2006, a 50 million yuan investment from the oil drilling tool jiyuan Yellow Ltd. a joint venture with the U.S. high-tech enterprises.

河南神龙石油钻具有限公司成立于2006年10月，一期投资5000万人民币，是由济源黄河石油钻具有限公司与美国合资经营的高科技企业。

The seventh chapter is conclusions and prospects, sums up the innovative ideas and research findings of the paper, puts emphasis on the new drilling tools and new technology of water-saving rotary percussion drilling, which has important environmental value, convenient, and easy to be popularized, at the same time, imperfections existed in study process of the paper were pointed out, and some suggestions were offered for further research.

第七章、结论与展望，总结了全文的主要创新与研究成果，强调了节水型回转冲击钻进新机具及其新工艺不仅简便实用、易于推广，而且具有重要的环境价值，同时也指出了课题研究过程中存在的不足之处，对进一步的研究工作提出了一些建议。

Elevator is used for hoisting drilling tool, pulling tube or percussion drilling.

升降机为提升钻具、起拔套管或进行冲击钻进用。

percussion drilling ; rotary drilling ; jars ; performance ; parameter ; penetration rate

因此，冲击器是冲击旋转钻井中的核心工具，它的性能优劣决定了冲击旋

The present invention is one multifunctional electric hammer with the functions of percussion, percussion drilling, drilling, etc. and aims at facilitates the operation of multifunctional electric hammer. The improved multifunctional electric hammer includes front end parts and back end parts.

本发明涉及具有锤、锤钻、钻等功能的多功能电锤，解决的是现有的多功能电锤两个旋钮组合操作多功能的转换，操作不方便和其传动轴沿轴向来回窜动损坏前端壳体的问题。

The percussion drilling method was named as "Father of Petroleum Drilling in the World" and became another great invention, next to the Four Great Inventions of Ancient China.

两千载井盐历史、八百年彩灯文化、亿万年恐龙遗迹、三百年川菜源流，展示着世界最古老的井矿盐都市、中国最厚重的盐文化遗存风彩。

The paper discussed the main technical points of bedrock drilling, the design and selection of back reamers for different formations and drilling diameters, detailed construction technology of bedrock with typical engineering cases in China and prospected the future development.

论述了非开挖基岩钻进的技术要点及在不同地层、不同管径施工条件下对非开挖回扩钻头的设计及选用。结合国内几个典型的施工实例，详细阐述了非开挖基岩钻进的施工工艺。展望了该技术的发展前景。

The HWDP's uses AISI 4145H alloy structural steel, the technique of production exactly carries on the SY/T5146-1997 standard, HWDP is one kind of medium weight and the drill pipe similar drilling tool, its wall thickness is thicker than the drill pipe, is thinner than the drill collar, on its thick wall body connected special and lengthen drilling joint.

整体加重钻杆的原材料用钢是AISI 4145H合金结构钢，生产工艺严格执行SY/T5146-1997标准，加重钻杆是一种中等重量和钻杆类似的钻具，其壁厚比钻杆大，比钻铤小，其厚壁管体上连接有特别加长的钻杆接头。

Be living in the deep well ultradeep well prospecting process ,Since radial direction force 、Eddy is stird 、Elements such as horizontal vibration and so on being ,In the wake of well drilling time the increase ,The auger post writings is used the casing inside wall crossrange strenuously to broaden ,It is more and more grave to cause casing and drilling rig to join the wornout problem .

论文摘要：在深井超深井勘探过程中，由于径向力、涡动、横向振动等因素的存在，随着钻井时间的增长，钻柱作用于套管内壁的侧向力增大，导致套管和钻具接头磨损的问题越来越严重。造成钻具耐磨带失效的主要原因有地层研磨性、钻杆的井下工况、耐磨材料选择与

I want to be a big fish in a small pond.

我要做一条在小池塘里的大鱼。

While the software functioned well, we did not feel the same about their customer support!

虽然该软件运行良好，我们没有同样的感觉他们的客户支持！