Abstract: A bailer bottom, bailer system, and method for performing bailer operations at a wellsite are disclosed. The wellsite is positioned about a wellbore penetrating a subterranean formation. The bailer bottom is deployable in the wellbore. The bailer bottom includes a plurality of downhole components and a select fire unit. The plurality of downhole components includes a cement unit which includes a cement chamber and a valve. The cement chamber has a port therethrough in selective communication with the wellbore via the valve. The select fire unit includes a downhole switch electrically coupled to the plurality of downhole components. The downhole switch has a polarity for each of the plurality of downhole components. The downhole switch is triggerable to selectively move between the multiple polarities to selectively pass a signal to one of the plurality of downhole components whereby the plurality of downhole components are selectively activated.

Abstract: A bailer bottom, bailer system, and method for performing bailer operations at a wellsite are disclosed. The wellsite is positioned about a wellbore penetrating a subterranean formation. The bailer bottom is deployable in the wellbore. The bailer bottom includes a plurality of downhole components and a select fire unit. The plurality of downhole components includes a cement unit which includes a cement chamber and a valve. The cement chamber has a port therethrough in selective communication with the wellbore via the valve. The select fire unit includes a downhole switch electrically coupled to the plurality of downhole components. The downhole switch has a polarity for each of the plurality of downhole components. The downhole switch is triggerable to selectively move between the multiple polarities to selectively pass a signal to one of the plurality of downhole components whereby the plurality of downhole components are selectively activated.

Abstract: A non-explosive, down hole, setting tool, system method includes a hydraulic fluid reservoir, a first compressible fluid for applying a first force against hydraulic fluid in contact with one side of a setting piston that is movable in the tool, and a second compressible fluid for applying a second force greater than the first force against the other side of the setting piston. Hydraulic fluid is pumped against one end of the setting piston to overcome the second force and move the setting piston. A reset valve is located in a hydraulic fluid return passageway that is connected between other end of the setting piston and the source of hydraulic fluid. The reset valve can move to selectively block the flow of the hydraulic fluid or allow hydraulic fluid to flow through the fluid return passageway, so that the setting piston can move the setting piston back to its start position.