A Review of the Evaluation, Control, and Application Technologies for Drill String Vibrations and Shocks in Oil and Gas Well

Table 6

Real-time quantification of drill string failure risk.

Name of equation	Equation	Units
Root mean square [83–85]
Vibrations intensity [86]
Acceleration root square [83]
RMS acceleration [83]
Power index [86]
Characteristic intensity [84]
Peak acceleration [83]