PDC钻头

例句

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1.
The design of bit profile is an important part of PDC bit design, and it is always made by designers on the basis of their experience.
冠部设计是PDC钻头总体设计的一个重要组成部分，过去一直是凭经验设计，缺乏理论依据，随意性较大。
www.chemyq.com
2.
Specialized PDC cutters placement extends bit life in soft formation with medium hard and abrasive layers.
新型复合片及布齿可提高钻头在含中等硬度和研磨性夹层的软地层中的使用寿命。
www.showxiu.com
3.
New type PDC cutters and heavyset gage design promote longer bit life in hard and abrasive formations.
新型切削齿及高密度保径布齿提高钻头在硬研磨性地层中的使用寿命。
dict.kekenet.com
4.
The optimization of hydraulic structures for PDC drill bits is an effective means to control the generation and development of bit balling.
对PDC钻头水力结构的优化是控制泥包生成和发展的有效手段。
g5.baidu.com
5.
Synthetic-base muds (SBM) provide excellent wellbore stability and maximum ROP, particularly in combination with PDC bits.
合成基泥浆（SBM）提供了良好的井壁稳定性和最大的钻速，尤其是在结合使用PDC钻头时。
bbs.e5zj.com
6.
The seventh section of this paper simply recommends such nozzles'design programme on PDC bit.
并对这套PDC钻头水眼设计程序做一简要介绍。
www.juhe8.com
7.
Generally, for the stratum of median soft, the service life of the hard alloy bit is 20-30m, Smaller than PDC bit far.
一般情况下对于中软地层，硬质合金钻头的使用寿命为20~30m。远小于PDC钻头。
www.13191.com
8.
The operation performance of PDC bits with screw drill tool applied 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。
www.dictall.com
9.
Developed study on the numerical bit , well bottom and the borehole face modeling method for PDC bit numerical experiment system.
开展了PDC钻头数值实验系统中数值钻头、数值井底以及数值井壁的建模方法研究。
lib.swpu.edu.cn
10.
Optimization results improved the mechanical behavior of PDC bit, and provided theory basis for design of PDC bit.
优化结果改善了PDC钻头的力学性能，且为PDC钻头的设计提供了理论依据。
www.13191.com