The actual wellbore length from the kelly bushing (KB), derrick floor (DF), foundation or ground level (GL), to a point in the well or bottom of the well.
从方钻杆补心(KB)、钻台(DF)、底座或者地面标高(GL)到井中测量点或者井底的实际井筒长度。
The actual wellbore length from the kelly bushing (KB), derrick floor (DF), foundation or ground level (GL), to a point in the well or bottom of the well.
从方钻杆补心(KB)、钻台(DF)、底座或者地面标高(GL)到井中测量点或者井底的实际井筒长度。
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