1)directional drilling定向钻井
1.Improvements of normal surface scan algorithm for directional drilling;定向钻井法面距离扫描算法的改进
2.This paper mainly introduces the application of naturally-communicated well pair and directional drilling communicated well pair in Jiangxi Salt Mine Co.文章主要介绍了自然连通井组,定向钻井连通井组在江西盐矿有限责任公司的应用实际,分析了各自在多层薄层盐矿床开采中的特点,提出定向钻井连通井组为最佳开采工艺选择。
3.During directional drilling,tool face often deviated from the desired direction due to the friction caused by the relative motion(rolling and sliding) between the bit and the formation.定向钻井中,钻头与地层之间的相对运动(滚动和滑动)所产生的反扭矩导致工具面不断偏离井眼设计轨道,为解决该问题,国外石油公司研制出了一种全新的无反扭矩钻井装置,并进行了初步的现场试验。
英文短句/例句
1.Application of Directional Drilling Technology in Coal-bed Methane Vertical Well Construction定向钻井技术在煤层气垂直井施工中的应用
2.Study on Dirctional Well Drilling Design and Construction of Terrestrial Heat at Linyi Shandong;山东临沂地热定向钻井设计与施工研究
3.Stduy on Geothermal Well Directional Drilling with Air Foam in Kenya Olkaria肯尼亚OLKARIA地热井空气泡沫流体定向钻井综合技术研究
4.Study on Vertical Structural Stability of a Super-deep Drilled Shaft in Slurry泥浆中超深钻井井壁竖向稳定性分析
5.3D visualization of hole trajectory in directional well drilling定向井实钻井眼轨迹三维可视化描述
6.DRILLING TECHNOLOGY OF THE DEEPEST DIRECTIONAL WELL-LONGGANG 8 IN SICHUAN四川超深定向井龙岗8井钻井技术实践
7.Research of Key Technology with Drilling Stem Fixed with Cable in Directional Drilling under Coal Mine煤矿井下定向钻进通缆钻杆关键技术研究
8.The measurement while drilling technology in nearly horizontal directional drilling in coal mines煤矿井下近水平定向钻进中的随钻测量技术
9.AN ALGEBRAIC METHOD OF BOREHOLE TRAJECTORY DESIGN WITH DEFINED BOREHOLE DIRECTION限定井眼方向待钻轨道设计的代数法
10.APPLICATION OF DIRECTIONAL AND HORIZONTAL WELL DRILLING TECHNOLOGY IN THE RIGHT BANK OF AMDA RIVER阿姆河右岸定向水平井钻井工艺技术实践
11.In drilling high angle deviated holes, friction is the main factor affecting the effective WOB.在大斜度定向井钻井过程中，摩擦阻力是影响有效钻压的主要因素。
12.Brief Discussion on the Application of Wired Drilling Technology in Directio nal Horizontally-butted Wells浅谈有线随钻技术在定向水平对接井中的应用
13.Design of Directional Drill of Data Acquisition Based on C8051F320基于C8051F320的钻井定向数据采集系统的设计
14.Study on dynamic characteristics of controlled objects in stabilized platform of rotary steerable drilling system旋转导向钻井稳定平台控制对象动态特性研究
15.Mechanism Research of Gas Drainage by Drilling Long Holes井下预抽瓦斯定向长钻孔的合理性参数研究
16.Feedforward fuzzy algorithms research of stabilized platform in rotary steering drilling system旋转导向钻井稳定平台前馈模糊算法研究
17.medium-radius lateral drilling中曲率半径侧向钻井
18.bottom supporting drilling platform定柱沉垫式钻井平台
相关短句/例句
directional well drilling定向钻井
3)directional well drilling定向井钻井
1.The common drilling assembly was introduced used in directional well drilling in the"straight-by-steady-down-stability"phase.介绍了定向井钻井过程中"直-增-稳-降-稳"阶段常用的钻具组合,结合现场所用钻具,分析了各个阶段所用钻具的特点,并优选了钻具组合。
4)sidetracking directional well侧钻定向井
1.Using advanced sidetracking directional well techniques can make full use of abandoned well resources and reduce development cost of oil/gas field.如何充分利用报废资源降低油气田开发投资和成本 ,运用先进的套管开窗侧钻定向井技术 ,能有效地解决川西地区失去开采价值的近百口生产井进一步挖潜的技术难题。
5)Dual targeted orientational drilling双靶定向井钻井
6)directional drilling定向钻井;定向钻孔
延伸阅读
定向诱变分子式：CAS号：性质：是一种将DNA分子在体外诱发位点专一突变的技术。常用方法有(1)D环诱变法。将同源单链DNA小片段与完整超螺旋双链DNA分子混合在含有ReCA蛋白，ATP的缓冲液中，由于单链侵入双链而在同源区域产生一个单链D环。用单链DNA专一性诱变剂二亚硫酸盐处理上述DNA，可使D环上胞嘧啶脱氨而成为尿嘧啶。将处理过的DNA转化ung-细胞，经过DNA复制，尿嘧啶与腺嘌呤配对，导致G·C到A·T的转换。(2)寡核苷酸诱变法。将一个化学合成的含有突变碱基顺序的寡核苷酸片段与单链靶DNA分子退火复性形成异源双链核酸分子，由该寡核苷酸片段作为引物，通过Klenow酶催化合成第二条链。在连接后，将该双链DNA分子(可自主复制)转化到宿主菌，经复制使突变链和非突变链分离，能获得含有预期突变的细胞。这个技术与传统诱变剂方法相比，具有突变率高、突变位点和碱基顺序明确等优点。
