精选钻井工程计算1

1．某井用Φ127mm 钻杆(372.4 N/m )2200m ，Φ184.20mm 钻铤(1737N/m )60m、Φ158.8mm 钻铤(1328N/m )100m 及Φ216mm 钻头，钻井液密