SYSTEMS, ASSEMBLIES AND METHODS FOR CONTROL OF TOOLS IN WELL BORE Russian patent published in 2013 - IPC E21B23/08 

FIELD: mining.

SUBSTANCE: system comprises a separate hydraulic line for transfer of a signal device, capable of generation of one or several individual signals to one or more tools in an underground well. Each tool may be equipped with a reading device to receive signals from the signal device and to send signals to the signal device. Each reading device may control action of a tool connected to with it, if the reading device is programmed to react to signals received from the control device. The working liquid of the hydraulic system used for control of tool action may move along the separate hydraulic line or an individual hydraulic line. The individual hydraulic line may be used to return the tool into the initial position. At the same time the control line have a channel with a diameter sufficient for displacement of the signal device through it, but insufficient for provision of commercial quantities of produced fluid media.

EFFECT: increased efficiency of tools control in a well bore.

44 cl, 10 dwg