1) cable tool coring
顿钻取心
2) hollow-rod churn drill
空心杆顿钻
4) 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。
5) coring with drilling
随钻取心
6) Core Drilling
取心钻进
1.
Core Drilling in the Ice Sheet of the South Pole;
南极冰盖深层取心钻进技术及设备
2.
Drilling fluid technology in the core drilling of SLCORE-I well (main well);
松科1井(主井)取心钻进钻井液技术
补充资料：下取
下取 下取 治法术语。即从下施治。指上病下取或下法。《素问·五常政大论》：“上取下取，内取外取，以求其过。”《灵枢·卫气失常》：“其气……积于腹中者，下取之。”
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