單項(xiàng)選擇題井下馬達(dá)在正常工作時(shí),從上面鉆具過來的泥漿:()

A.10%經(jīng)過旁通閥,10%經(jīng)過徑向滑動(dòng)軸承,80%經(jīng)過鉆頭水眼
B.5%經(jīng)過旁通閥,12-15%經(jīng)過徑向滑動(dòng)軸承,80-85%經(jīng)過鉆頭水眼
C.0%經(jīng)過旁通閥,5-7%經(jīng)過徑向滑動(dòng)軸承,93-95%經(jīng)過鉆頭水眼
D.100%經(jīng)過鉆頭水眼


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