1) double margin drill
双边钻头
2) bicenter bit
双心钻头
1.
When drilling with bicenter bits, several problems have been encountered, such as drilling a smaller- than - expected hole, the instability of bottom hole assembly (BHA), and hole deviation tendencies that make the bit extremely weight sensitive.
针对使用双心钻头钻进时扩孔尺寸不理想、钻具工作不稳定、井斜趋势引起钻头工况对钻压非常敏感等问题,对底部钻具组合的受力、变形和运动状态等方面进行了分析研究表明,由于双心钻头几何设计的独特性,工作时钻头上受有不平衡力,这使得钻头切削不稳定,且影响钻柱变形。
3) two-lipped drill
双缘钻头
4) bilateral monopsony
双边寡头
5) two-stage PDC bit
双级PDC钻头
1.
Analysis of bottom-hole stress field of two-stage PDC bit;
双级PDC钻头井底应力场分析
6) two-way bit
双刮刀钻头
补充资料：双边
1.两方﹐常指两个国家。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条