of the predetermined values and time intervals may be ignored allowing unlimited pressure points to be applied downhole without activating the apparatus the control module may be configured to distinguish its own commands from naturally occurring applied pressures or pressure pulses generated by the gravel pack or fracturing operations once a trigger has been detected and executed the apparatus is capable of reset to wait for another trigger to initiate the next task it is anticipated that the control module could be applied to essentially any hydraulically operated tool the system facilitates remote and wireless communication with a downhole production assembly in some applications the energy storage capacity or battery life may limit the amount of time that the apparatus is capable of responding but in the practice of the invention a battery configuration may be chosen that will develop sufficient power for a sufficient length of time to achieve the advantages of the invention the invention may be coupled with downhole power generation sources to recharge the battery or directly power the control module sensors and motor pump assembly downhole power may be generated from the surface and transmitted by various means available i e fluid tubing control line energy available downhole can be used to drive an in situ power generation system in some embodiments of the invention referring now to the figures fig1 shows a basic operational configuration of a first embodiment of the invention wherein a signal generating device 10 positioned remotely from the sensor creates pressure pulses for transmission through a fluid in the wellbore the pressure pulse comprising fluid signal 12 is propagated downhole to a location where it may be received by one or more pressure sensor.