SPUDCAN FOR INSTALLATION OF THE PROFILE BURNER IN THE WELL Russian patent published in 2019 - IPC E21B29/10 

FIELD: oil and gas industry.

SUBSTANCE: invention relates to the oil and gas industry, in particular, to devices for installing extensible systems, for example, profile breakers when they isolate zones of drilling complications. Device includes a housing with a thread for the connection with a profile shutter and a passage channel where below the valve seat is located, the ball is fixed on top of a removable sleeve with holes for the flow of fluid and located in the guide above the seat, which is rigidly connected to the housing. For the connection with the profile breaker, the housing is provided with a left-hand thread. Ball guide is made in the form of a cylindrical sample coaxial with the saddle for longitudinal movement of the ball with longitudinal grooves evenly located along the perimeter of the sample for fluid flow. Saddle is made with the displacement of its axis relative to the longitudinal axis of the body at a distance of at least 5 mm, with one of the holes in the sleeve being made along the axis of the cylindrical guide sample. Notch is made down the center of the body to accelerate drilling at a distance of at least 25 mm from the saddle, extending from top to bottom at least to the middle of the body radius. Total cross-sectional area of the sleeve holes is approximately equal to the total cross-sectional area of the guide grooves.

EFFECT: reliability is increased, the profile clapper is sealed when working in both vertical and horizontal wells, and it is possible to drill the shoe completely in place with minimal time costs.

1 cl, 3 dwg