4/6/2025, 1:56:23 PM 星期日
Design and Test on Experimental Table of Stimulated Rotary Drilling for Ice Coring
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College of Construction Engineering, Jilin University,College of Construction Engineering, Jilin University,College of Construction Engineering, Jilin University,College of Construction Engineering, Jilin University,College of Construction Engineering, Jilin University

Clc Number:

P634

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    Abstract:

    Polar drilling practice reveals the complicated geological conditions near the bottom of ice sheet and the ice-rock interface; warm ice, basal melt water and even the debris-rich ice with unequal thickness may exist, these conditions make coring drilling extremely difficult. The optimization of bit types and the determination of reasonable drilling parameters become important factors to ensure safe and rapid drilling. In this paper, an experimental table is introduced, which can stimulate rotary drilling in ice with adjustable bit pressure and rotation speed of 0~10kN and 0~300r/min respectively and the maximum torque about 100N·m. By this experimental table, the temperature of bit, borehole depth, drilling speed and some other parameters can be measured to provide means for further research on the influence of bit type and structure parameters on torque and cutting temperature. Ice drilling experiment was carried out with PDC bit; the results show that the experimental requirements can be met by this table with accurately adjusted drilling pressure and speed.

    Reference
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History
  • Received:April 05,2016
  • Revised:April 05,2016
  • Adopted:April 15,2016
  • Online: May 12,2016
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