Patent ID: 8820242

Claim:
An apparatus for inserting a charge medium within a borehole, comprising: a charge tube comprised of an elongate tube having a length and diameter sufficient for containing a desired quantity of a charge medium, a diameter of the charge tube being less than a diameter of a borehole within which the charge tube is to be inserted; a charge medium in a pumpable form for substantially filling the charge tube; an insulation medium in a pumpable form for substantially encapsulating the charge tube and substantially filling an annular space between the charge tube and the borehole for insulating the charge tube from a downhole environment in which the charge tube is to be inserted; a detonator inserted within the charge medium proximate a distal end of the charge tube and a charge cable extending from the detonator through the charge tube and exiting from the charge tube; and a plurality of annular supports coupled to the charge tube, each having a diameter that is less than a diameter of the borehole within which the charge tube is to be inserted for creating the annular space between the charge tube and the borehole.