Downhole power delivery tool powered by hydrostatic pressure

A downhole power delivery tool positionable in a wellbore through a fluidproducing formation, the downhole power delivery tool comprising: a body having a chamber disposed therein, the body defining a first inlet proximate to the chamber and defining a flow path into the chamber from an annulus between the body and the formation; a rupture disk positioned adjacent to the first inlet of the body such that the flow path defined by the first inlet is blocked, the rupture disk having a burst pressure corresponding to an actuation force such that the actuation force being applied to the rupture disk allows communication of hydrostatic pressure from the annulus via the flow path into the chamber; a piston proximate to the chamber, wherein the piston applies a force to a rod in response to the communication of the hydrostatic pressure from the annulus via the flow path to the chamber, the rod movable relative to the body; and a chemical charge proximate to the rupture disk, wherein the chemical charge generates the actuation force in response to receiving an electrical signal. SilO Nil I v! K > :.- " 'A V willl ~ (Vi ~ .n N'IV\aIt) en iii~'