FIELD: mining.
SUBSTANCE: group of inventions relates to a sealed connection system for connecting a wellbore and to a method of sealing a connection between adjacent wellbores. System of the sealed connection for connection of the borehole contains a connecting assembly unit having the upper and lower parts and the flow channel located in it. Bottom part has non-running collar forming conical end part. System also comprises a sealing element located around the conical end part and next to the pass-less collar. Connecting assembly unit consists of soluble material.
EFFECT: technical result consists in improvement of insulation efficiency.
15 cl, 9 dwg
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