Investigating drillstring vibration and stability in coring drilling

HIGHLIGHTS

• who: Yuchen Sun et al. from the Key Laboratory of Deep Geological Technology of Ministry of Natural Resources, China University of have published the paper: Investigating Drillstring Vibration and Stability in Coring Drilling, in the Journal: Energies 2022, 15, 5234. of /2022/
• how: Making the study universal the following dimensionless parameters are introduced. q q y u03c1A 0 k 1 L5 x s t EI PL3 0 2 0 w=L u03be=L d=L u03c4=L2 u03c1A C f=C f L EI P=EI k 2=EI u03c9 f=q u03c1A u03c9 f . . .
  

   

  

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