钻柱振动载荷对钻压影响的研究

Research into the Effect of Vibration Loads on Bits by Drilling Strings

应用机械振动理论，对钻柱在地层随机激励作用下的振动问题进行了研究。结果表明，在地层随机激励作用下，钻柱的振动将会引起钻压的波动，从而影响钻头的寿命及其钻进的速度。

In accordance with the theory of mechanic vibration,this paper gives the results of study about vibration loads of drilling strings with the random excitation during drilling operation. The results show that the vibration of drilling strings will produce the fluctuation of weight on bits by random excitation,so the bit life and drilling rate are affected largely.