Pressure intensifier module for additional setting force in a retrievable bridge plug

Abstract

Some implementations include an apparatus configured for use in a wellbore drilled through one or more subsurface formations. The apparatus may comprise one or more pressure intensifier modules configured to increase an applied force of a downhole power unit (DPU) in setting a downhole tool in the wellbore, each pressure intensifier module including a movable input device configured to provide an input force from the DPU and a pressure intensifier piston having a first portion of a first contact area and a second portion of a second, smaller contact area, wherein the pressure intensifier piston is coupled to the movable input device by a force-dependent coupling device. The apparatus may also include a setting piston configured to provide a setting force to one or more components of the downhole tool, wherein the setting force is generated, at least in part, by the pressure intensifier piston.

Dependencies are inferred from the claim text.