單項(xiàng)選擇題
A.0.1~0.3 B.0.3~0.5 C.0.5~1 D.1~1.5
A.0.1~0.3m B.0.3~0.5m C.0.5~0.7m D.0.7~1m
A.彎曲或變形 B.略有彎曲或輕度變形 C.變形大的 D.損壞大的
A.5in B.51/2in C.53/4in D.7in
A、100~104mm B、102~105mm C、105~108mm D、104~112mm
A.快,防止破壞套管 B.快,防止卡鉆 C.慢,防止破壞套管 D.慢,防止水眼堵死
A.領(lǐng)眼錐體 B.錐體 C.領(lǐng)眼體 D.領(lǐng)眼磨鞋
A.0.5~1kN B.2~3kN C.10~30kN D.30~50kN
A.152mm B.156mm C.159mm D.160mm
A.106mm B.108mm C.110mm D.112mm
A.95mm B.96mm C.98mm D.101mm