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An apparatus (100) for actuating a hydraulically controllable device (102) disposed in a wellbore is disclosed. The apparatus (100) comprises a downhole hydraulic fluid source (134), a hydraulic fluid passageway (136) providing a communication path between the downhole hydraulic fluid source (134) a

An apparatus (100) for actuating a hydraulically controllable device (102) disposed in a wellbore is disclosed. The apparatus (100) comprises a downhole hydraulic fluid source (134), a hydraulic fluid passageway (136) providing a communication path between the downhole hydraulic fluid source (134) and the hydraulically controllable device (102), a valve (144) disposed within the hydraulic fluid passageway (136) and a downhole electronics package (138). The downhole electronics package (138) receives a signal from the surface to operate the valve (144) from the closed position to the open position such that hydraulic pressure from the downhole hydraulic fluid source (134) actuates the hydraulically controllable device (102).

대표청구항 ▼

1. A method for actuating a downhole device comprising the steps of:sending a signal to a downhole electronics package; establishing a communication path between a self-contained downhole hydraulic fluid source and the downhole device in response to the signal; transmitting a hydraulic from the self

1. A method for actuating a downhole device comprising the steps of:sending a signal to a downhole electronics package; establishing a communication path between a self-contained downhole hydraulic fluid source and the downhole device in response to the signal; transmitting a hydraulic from the self-contained downhole hydraulic fluid source to the downhole device through the communication path by utilizing hydrostatic pressure from an annulus surrounding the downhole device to urge the hydraulic fluid from the self-contained downhole hydraulic fluid source to the downhole device; and actuating the downhole device in response to the hydraulic fluid.