Designed for completion of cemented wells with subsequent multi-stage hydraulic fracturing using a selective packer and hydrostatic valves (fracturing fracturing collars).
It is intended for landing of the sales plug (receiving the signal of the first "Stop"), separation of cement and drilling mud in the process of moving along the shank from the installation tool to the landing coupling. Landing the suspension plug together with the sales plug in the landing clutch serves as a Stop signal.
It is intended for landing of sales and suspension traffic jams at the moment of completion of the cementing process (receiving the "Stop" signal) during two-stage cementing.
It is used for continuous well cementing and is designed for multi-interval staged hydraulic fracturing with the possibility of using a selective packer.