FIELD: oil industry.
SUBSTANCE: group of inventions relates to oil and gas industry, in particular to regulation of fluid flow in pipe strings in wells. Device includes a casing with one or more formed openings; a valve component which can be combined and removed from alignment with said one or several holes in said casing; and one or more plugs installed in one or several holes, where in each hole there is one plug to enable lowering of said valve component in an open position relative to holes. Each plug can be decreased as a result of one or more effects of well fluids and supplied solvent fluids. Plug material includes a continuous cellular nanomatrix, a plurality of dispersed particles containing core material particles and distributed in said cellular nanomatrix, and a solid jointing layer between dispersed particles.
EFFECT: reduced number of trips for performing process operations in well.
18 cl, 7 dwg
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