drillstring 中文意思是什麼

drillstring 解釋
鉆管組鉆油臺
  1. The result of simulation of model 8 ? 1 / 2 ? xhp2s bit shows that, the torque on the bit changes randomly, and the degree of the change increases with the increase of the weight on bit ; the change of the torque on the upper part of the drillstring is not so large as that on the string ' s lower part, and the rotary speed of the bit changes smoothly overall

    對8英寸xhp2s鉆頭做了模擬，結果表明，鉆頭處受巖石的阻力扭矩是隨機變化的，並有負扭矩出現，扭矩的變化幅值隨靜鉆壓的增加而增加；鉆柱頂部轉盤施加的扭矩變化不如底部劇烈；鉆頭的轉速在局部有較小的波動，其總體變化較為平緩。
  2. By means of the drillstring ' s finite element model and the numerical solution method, and based on the mechanical models of bit / rock interaction, the dynamic models for torsional vibration of cone bits and drillstrings are established

    利用鉆柱動力學有限元模型的數值計算方法，在考慮了鉆頭與巖石互作用力學模型的基礎上，建立了鉆頭和鉆柱扭轉振動動力學模擬模型。
  3. Analysis of longitudinal and torsion vibration of drillstring

    鉆柱縱向和扭轉振動分析
  4. Dynamics analysis of drillstring failure

    鉆柱失效的動力學分析
  5. An application of gap element to the transient dynamics analysis of drillstring

    間隙元在鉆柱瞬態動力學分析中的應用
  6. Torque feedback to suppress drillstring torsional vibration in extended reach well

    大位移井鉆柱扭轉振動頂部扭矩負反饋減振研究
  7. By means of the simulation calculation, varying of the torques on the bit and the drillstring top and the rotary speed of the bit can be predicted

    通過模擬計算可預測鉆頭處阻力扭矩、鉆柱頂部扭矩和鉆頭轉速的變化情況。
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