Hydraulic control system for downhole tools

摘要

A hydraulic control system and associated methods provides selective control of operation of multiple well tool assemblies. In a described embodiment, a hydraulic control system includes multiple control modules, each of which has a member that is displaceable to multiple predetermined positions to thereby select a corresponding one of multiple well tool assemblies for operation thereof. When the member of a certain control module is in a selected position, an actuator of a corresponding one of the well tool assemblies is placed in fluid communication with a flowpath connected to the control module. The members of the multiple control modules are displaced simultaneously in response to pressure on a line connected to each of the control modules.