Results 121 to 130 of about 801 (206)

Theoretical and experimental studies of ITH percussive drill vibration

open access: yes, 1994
During underground, long-hole drilling operations, the bending of the drill string and vibrations exert significant effects on hole deviation and penetration rates.
Jian, Ming
core  

Application of Seismic Sensors in Measurement While Drilling. [PDF]

open access: yesSensors (Basel)
Khanal M   +5 more
europepmc   +1 more source

Analysis of longitudinal, torsional and bending vibrations of drill string

open access: yes, 2013
The paper considers longitudinal, torsional and bending vibrations of the drill string that occur during the bottom-hole deepening. The equations are presented that show the possibility of applying vibration velocity to evaluate the strength and ...
Hohol, V. I.   +2 more
core  

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