Multiphased through tubing stripgun

摘要

A through tubing stripgun detonating charge assembly for well perforating activities, comprising an elongate explosive resistant retrievable perforating charge support strip having a perforating charge interlocking track situate along the length thereof. A plurality of explosive well casing perforating charges having support elements thereon are connected in supporting and selective positioning interlocking engagement with the perforating charge interlocking track for support of certain ones of a plurality of perforating charges in 180 degree phase oriented and adjustably positionable relation on the perforating charge support strip. The perforating charge strip is also provided with a plurality of perforating charge connectors in spaced relation along the length thereof for support of a plurality of perforating charges in 0 degree phase relation with the perforating charge support strip and in 90 degree phase orientation with each of the 180 degree phased perforating charges. The charge interlocking track may have a dove-tailed cross-sectional configuration for interlocking relation with locking grooves of corresponding relation in certain of the perforating charges. Set screws or charge spacers are used to secure the perforating charges against movement relative to the retrievable support strip.