and the rotary cutting drag hook component comprises a drag hook handle and a lug boss which are fixed.
所述的旋切拉钩部件包括拉钩手柄和凸台,该拉钩手柄和凸台固定。
The rule of hook load and friction coefficient is applied to enhance predictive accuracy of frictional drag in new area or different BHAs and heighten utilization ratio of frictional drag. Drag theory can be combined with practice, and drill string mechanics analysis system is supplemented.
利用钩载和摩阻系数的规律性,能够提高新区块或者不同钻具组合摩阻预测的准确性,增强现场施工摩阻的利用率,达到理论结合实际,丰富完善钻柱力学分析体系的目的。
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