Design and test of drillstring absorber for rotary drilling rig

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Journal of Vibration and Shock ›› 2016, Vol. 35 ›› Issue (6) : 192-196.

XU Xin-xin1，JIAO Sheng-jie1，CHEN Yi-tian2，CHENG Jian-lian1

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Abstract

In order to control and reduce the drillstring vibration more effectively for rotary drilling rig, a drillstring absorber was designed based on vibration absorption principle. According to the vibration chatacteristics of drillstring, dynamic model of drillstring with the absorber was established and its effect of suppressing vibration was proved with simalation. Then, the suppressing vibration test system was set up to verify the effect of the drillstring absorber. The results show that the vibration suppression of drillstring is reduced obviously after the installation of the drillstring absorber, and the drillstring absorber has better vibration damping effect. The research will offer a reference in reducing vibration for other engineering machinery manufactures.

Key words

rotary drilling rig / drillstring vibration / vibration absorption principle / absorber / experimental investigation

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XU Xin-xin1，JIAO Sheng-jie1，CHEN Yi-tian2，CHENG Jian-lian1. Design and test of drillstring absorber for rotary drilling rig[J]. Journal of Vibration and Shock, 2016, 35(6): 192-196

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