FIELD: machine building.
SUBSTANCE: invention relates to a high-pressure system for multiple hydraulic fracturing and a system of a manifold mounting hydraulic valve (MMHV) for connection with a production string to enable isolation of a prospective formation within a well. In particular, this system provides the possibility of access to a ground formation for hydraulic fracturing of a zone-of-interest formation and extracting raw hydrocarbons. System as a whole contains a plug counting system, a capturing system and a valve system, while dropping a group of plugs down the production string allows sequentially capturing individual plugs inside separate MMHV for successive hydraulic fracturing operations.
EFFECT: technical result is to increase the valve efficiency.
14 cl, 20 dwg
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