A.PV <50CP B.Sand <0. 5% C.The type of must be F1300 D.In order to MWD work well must use filter
A.wiper trip B.casing shoe C.put out hole D.back reaming
A.liner沖程 B.dead line死繩 C.draw works絞車 D.rotary table轉(zhuǎn)盤