1) 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。
2) bicenter bit
双中心钻头
3) coring bit
取心钻头
1.
Based on strata characteristics,designed 8? matrix bodied triple stepped PDC coring bit and steel bodied multiple stepped tungsten-carbide-tipped coal coring bit.
为满足设计要求,选择平顶山五环实业有限公司研制的大口径绳索取心器,并根据地层特点,设计了81/2胎体式三阶梯PDC复合片绳索取心钻头及钢体式多阶梯硬质合金取煤钻头。
2.
The bottom hole flow physical model of a kind of PDC coring bits is established considering the effect of junk slot and teeth layout in this paper.
以一种现场常用的PDC取心钻头为原型,充分考虑排屑槽和切削齿对于井底流动的影响,建立了与实际相接近的PDC取心钻头井底流场的物理模型。
4) eccentric bit
偏心钻头
1.
A mechanical model of bottom hole assembly (BHA) with eccentric bits is established and the solution of this model was given by means of numerical method.
采用静力分析的方法,建立了偏心钻头底部钻具组合的力学模型,并完成了对力学模型的求解。
5) hollow boring bit
空心钻头
6) solid drill
实心钻头
补充资料：2,2-双氯甲基-三亚甲基-双[双(2-氯乙基)磷酸脂]
CAS：38051-10-4
分子式：C13H24Cl6O8P2
中文名称：2,2-双氯甲基-三亚甲基-双[双(2-氯乙基)磷酸脂]
英文名称：2,2- bis(chloromethyl)-trimethylene bis[bis(2-chloroethyl)phosphate]
phosphoric acid, 2,2-bis(chloromethyl)-1,3-propanediyl tetrakis(2-chloroethyl)
2,2-bis(chloromethyl)trimethylene bis(bis(2-chloroethyl)phosphate)
2,2-bis(chloromethyl)-1,3-propanediyltetrakis(2-chloroethyl)phosphate
分子式：C13H24Cl6O8P2
中文名称：2,2-双氯甲基-三亚甲基-双[双(2-氯乙基)磷酸脂]
英文名称：2,2- bis(chloromethyl)-trimethylene bis[bis(2-chloroethyl)phosphate]
phosphoric acid, 2,2-bis(chloromethyl)-1,3-propanediyl tetrakis(2-chloroethyl)
2,2-bis(chloromethyl)trimethylene bis(bis(2-chloroethyl)phosphate)
2,2-bis(chloromethyl)-1,3-propanediyltetrakis(2-chloroethyl)phosphate
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