Abstract: An apparatus for pumping fluids in a wellbore from a subterranean formation. The apparatus includes a tubular housing which is capable of being suspended from its associated upper end in a well bore or hole that communicates with a subterranean formation or oil reservoir. The tubular housing has at least one port or opening where through fluids (e.g. water, oil etc.) pass from the well bore. A pump assembly is contained within the tubular housing such as to be supported thereby. A rotating rod assembly is also contained within the tubular housing and is coupled to the pump assembly for operating the same. A gear assembly is coupled to the rotating rod assembly, and a motor assembly is coupled to the gear assembly while being dependedly attached to the tubular housing. The apparatus additionally includes a filter assembly coupled to the motor assembly.

Abstract: An apparatus and method for perforating in deviated and horizontal wells. A firing pin and charge housing is integrally secured to a generally tubular body. The firing pin and charge housing has a structure defining at least one recess extending through the firing pin and charge housing and communicating with at least one tubular bore within the tubular body. The recess comprises at least one charge recess communicating with the at least one tubular bore. A firing pin is biasingly disposed in the recess and an explosive member is disposed in the charge recess. A detonator is positioned in the recess and is engaged to the explosive member for detonating the latter. A sleeve member is slidably disposed in the tubular bore and has at least one sleeve opening and a shear pin bound thereto and extending through the recess for engaging the firing pin.