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中文摘要：
利用水平井钻柱动力学模拟实验装置，进行了水平井井底钻压波动的模拟实验。实验结果表明：水平井井底的钻压波动为一正弦波动，其波动频率与钻柱的自转频率相等，钻压对波动频率的影响不大；水平井井底的实际钻压始终与名义钻压近似相等；随着钻压和转速的增加，水平井井底钻压的波动会变得越稳定；水平井实际钻进时，建议转速大于52.08 r/min，钻压大于90 kN。
英文摘要：
Some experiments have been done by means of horizontal well drilling string simulation experimental device under different weight on bit and rotary speeds. The experiments result shows that： The WOB fluctuation of horizontal well is a sine wave, the frequency is equal to the drilling string rotation frequency, the weight on bit has little effect to the frequency; The actual WOB is always approximately equal to the nominal WOB; With the increase of the drilling string rotary speed and WOB, the WOB fluctuation becomes more stable; The rotary speed is greater than 52.08 r/min and the WOB is greater than 90 kN are suggested to the actual engineering.
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