Distributed sensors for dynamics modeling

摘要

An apparatus for estimating at least one of a dynamic motion of a portion of interest of a drill string and a static parameter associated with the portion of interest, the apparatus having: a plurality of sensors operatively associated with the drill string at at least one location other than the portion of interest; and a processing system coupled to the plurality of sensors, the processing system configured to estimate at least one of the dynamic motion and the static parameter using a measurement from the plurality of sensors as input.

主权项

1. An apparatus for estimating a dynamic motion of a portion of interest of a drill string, the apparatus comprising:
a plurality of sensors operatively associated with the drill string at at least one location other than the portion of interest; and a processing system coupled to the plurality of sensors, the processing system configured to validate an algorithm based on a comparison of an estimate of the dynamic motion at the at least one location other than the portion of interest, obtained based on inputting a measurement from the plurality of sensors to the algorithm, to a measurement of the dynamic motion at the at least one location other than the portion of interest and to estimate the dynamic motion of the portion of interest using the measurement from the plurality of sensors as a direct input to the algorithm providing the estimate when the algorithm is validated.