Axial vibrations of drillstrings produce pressure variations within the drilling fluid column. These pressure variations are imposed on controlled pressure pulse signals from Measurement-While-Drilling (MWD) tools producing background noise in pressure pulse data measured at the rig. The paper shows the effect on signal-to-noise ratio for various operating conditions, such as vibration frequency, valve opening/closing time, pulsing interval, and flow rate.
Issue Section:
Research Papers
This content is only available via PDF.
Copyright © 1990
by The American Society of Mechanical Engineers
You do not currently have access to this content.
