Terms for subject Drilling containing 一段

Chinese	English
一段时间	for a time
向钻杆中注入一段重泥浆	slug pipe
往井中泵入一段稠泥浆	slug the hole with viscous mud
泵入一段重泥浆	pump slug
起钻前钻柱中泵入一段重泥浆	slug the pipe