Downhole actuator device, apparatus, setting tool and methods of use

摘要

Actuator assembly or valve module for a downhole setting tool 100 and method of operation thereof. The tool comprising an actuator member 110 which includes a housing 112 and a piston 114 moveable within the housing. First 141a and second 141b fluid paths coupled to first and second sides of the piston element and a source of pressure. The actuator is moveable between a first and second position in response to a force acting upon a piston member and a pressure release mechanism, wherein the pressure release mechanism 185 is operable to equalise pressure between the first and second fluid paths of the actuator device. An inner rod 114a may comprise a fluid line of communication. The actuator may have a drive module 102 or at least two drive modules. A flow direction valve 174 may be included in the valve module, comprising a forward flow position and a reverse flow position.