TOOL FOR INSTALLATION OF PIPE STRING OF DIRECTION TO WELL ON SHELF (VERSIONS) Russian patent published in 2019 - IPC E21B19/24 E21B23/00 E21B33/38 E21B33/43 

FIELD: mining.

SUBSTANCE: group of inventions relates to the initial stage of the well construction on the shelf and is designed to lower the pipe string of the direction using the tool. Tool for installation of direction to the well on the shelf, which is made with grooves and groove, has the possibility of string pipes with equipment for cement works lowering to the well on the drill pipe string. Tool consists of guide with thrust and assembled housing with seals. Guide has threaded ends and has thread for nut equipped with key and end conical surface, on opposite side of which there is ledge having possibility of interaction with groove of indicator pin installed on housing. Body is made with pins for its radial movement and for interaction with guide and direction groove. Housing is made with stops having possibility of interaction with direction slots. On the housing there is a shear transport screw partially installed in the guide and blocking its rotation relative to the housing at descent of direction. In housing through hole is made and either plug or ball valve with cable is installed.

EFFECT: technical result consists in reliable operation of tool, providing tightness of tool and direction, wider possibility of their use.

2 cl, 9 dwg