DOWN HOLE INDUCTION HEATING TOOL AND METHOD OF OPERATING ANDMANUFACTURING SAME

摘要

An induction tool for heating well casing and a method for using and manufacturing the tool. The tool comprises a magnetically permeability core (153) and an electrically conductive coil (176) surrounding the entire circumference of the core. The tool generates magnetic flux which flux is us ed to heat well casing (120) adjacent to or acted upon by the tool. The heated well casing may be used to melt material used for well sealing.