为准确地控制施加于钻头上的力的大小，当钻头刚刚离开井底时司钻要仔细监测地表测得的重量。

To accurately control the amount of force applied to the bit, the driller carefully monitors the surface weight measured while the bit is just off the bottom of the wellbore.

youdao

为准确地控制施加于钻头上的力的大小，当钻头刚刚离开井底时司钻要仔细监测地表测得的重量。

To accurately control the amount of force applied to the bit, the driller carefully monitors the surface weight measured while the bit is just off the bottom of the wellbore.

youdao