A.3200ft-lbs B.3200N-m C.3700ft-lbs D.3700N-m
A.130mm B.150mm C.170mm D.180mm
A.通知鉆井方鉆具座卡 B.通知鉆井方制動(dòng)滾筒 C.檢查連接螺紋型是否一致 D.與鉆井方確認(rèn)井下工況正常