Method for controlling hydraulically multiple tools of the well control device for use in a well performance groundwater Neo.The control system of shaft and actuator for use in a well groundwater Neo

摘要

Method of controlling hydraulically multiple tools of the well control device for use in a well performance groundwater Neo.The control system of shaft and actuator for use in a well groundwater Neo.The system sequ00b3encial control hydraulic shaft provides selection and operation of the actuator using pressure applied to the hydraulic lines (a, B, c) in a sequ00b3u00eancia.In a Dr revealed, a control device performance (348) to a control system of shaft includes multiple pistons, at least one of which is enclosed in a lock to allow and prevent.Selectively, the displacement of a piston.When a piston moves in response to pressure applied to the hydraulic sequ00b3encialmente inputs (a, B, c) of the control device.An actuator member (370) is placed in fluid communication with the entries.