Table 3 Dynamic analysis and calculation parameters of flexible drilling tools.

Rotate speed

\({{\varvec{\Omega}}}\)/(r/min)

40

Radius of wellbore curvature

\(\rho\)/m

3.2

Well inclination angle

\(\theta\)/°

90

Dynamic friction factor

\(\eta\)

0.235

Diameter of bit

D/m

0.118