core barrel catcher

基本解释

A core bit is used to accomplish this, in conjunction with a core barrel and core catcher.
使用取芯鑽頭、取芯桶和巖心爪來完成取芯工作。
www.infopetro.com.cn
This kind of coring tool mainly consists of inner & outer barrel joint, swivel assembly, outer barrel pup joint, inner and outer barrel and core catcher subassembly.
欠平衡鑽井取心工具主要由內外筒接頭、鏇轉縂成、差值短節、內外筒、巖心爪組郃件組成。
Sealing coring tools mainly consists of external threaded adapter, balance piston, limit joint, inner and outer barrel, core catcher, locating pin, sealing head and coring bit.
密閉取心工具主要由外螺紋接頭、平衡活塞、限位接頭、內外筒、卡箍巖心爪、定位銷、密封頭、及取心鑽頭等部件組成。