Patent ID: 9051830
Filing Date: 2015-06-09
Classification: E21B

Abstract:
1. A downhole hydraulic control system comprising: a hydraulic control module positioned in a well; first and second hydraulically controlled devices positioned in the well, the first hydraulically controlled device having a first actuator, the second hydraulically controlled device having a second actuator; and first and second hydraulic control lines extending uphole of the hydraulic control module in the well; wherein, in a first configuration of the hydraulic control module, pressure variations in the first and second hydraulic control lines are operable to independently shift the first and second actuators in respective first directions; wherein, in a second configuration of the hydraulic control module, pressure variations in the first and second hydraulic control lines are operable to shift the first and second actuators in respective second directions; and wherein the hydraulic control module further comprises a release assembly and a piston, wherein a high pressure signal in the second hydraulic control line is operable to unlock the release assembly and wherein a high pressure signal in the first hydraulic control line is operable shift the piston from a first position to a second position.