DOWNHOLE PERFORATOR ASSEMBLY AND METHOD FOR USE OF SAME

摘要

A downhole perforator assembly (10) for establishing communication betwee n the interior of a tubular string (18) and a surrounding annulus (24) inclu des a downhole power unit (100) having a power unit housing (150) and a move able shaft (130) and a downhole perforator (260) having a perforator housing (262), a mandrel (278) slidably positioned within the perforator housing (2 62) and a penetrator (288) radially outwardly extendable from the perforator housing (262). The power unit housing (150) is operably associated with the perforator housing (262) and the moveable shaft (130) operably associated w ith the mandrel (278) such that when the downhole power unit (100) is activa ted and the moveable shaft (130) is longitudinally shifted relative to the p ower unit housing (150), the mandrel (278) is longitudinally shifted relativ e to the perforator housing (262) and at least a portion of the penetrator ( 288) is extended radially outwardly from the perforator housing (262).