FIELD: mining.
SUBSTANCE: group of inventions refers to method and device for remote access by means of intelligent valve control, which can be used at operating down boreholes. The system consists of two or more valves, each accommodated to operate independently in a preset interval of pressure. Two or more valves are intended to perform a group of successive actions by means of one or several well tools on base of pressure of fluid medium exerted to two or more valves.
EFFECT: possibility of multiple usage of remote access per one lowering of equipment of bottom of casing string.
29 cl, 5 dwg
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