РКССК disconnector for sectional run in hole of the string is part of a set of devices for sectional run in hole of casing strings. РКССК disconnector for sectional run in hole of the string is designed to be run on the drill pipes of the lower casing section, washing out the excess after cementing the lower section, disconnecting the transport string from the drill pipes from the cemented lower section, ensuring the joining of the upper and lower sections of the casing string and cementing the upper section of the casing string.
Standard sizes of manufactured disconnectors: РКССК-178, РКССК-245.