THE TUBE WAVE GENERATED BY A POINT SOURCE LOCATED OUTSIDE A BOREHOLE

摘要

The excitation of the tube wave by a point source situated inside an elastic medium is considered. The amplitude of the tube wave as a function of the radial distance is given for media with high and low velocies. Two models of sources are considered: a point vertical source and a point horizontal source. It is shown that the radial source is an efficient tool for excitation of a tube wave in high- and low-velocity media.