RADIAL VIBRATIONAL APPARATUS

摘要

A vibrational apparatus for a downhole assembly comprising first and second assemblies, each of the said assemblies having magnetic arrays around a common axis, wherein a fluid feed or other suitable drive causses a relative rotation between the assemblies, which relative rotation generates a vibration resulting in interactions between the magnetic arrays, thereby causing a reciprocating rectilinear movement of the assemblies along or parallel to the common axis.