EQUIPMENT UNIT FOR DEFLECTION OF DRILL AND COMPLETION ASSEMBLY Russian patent published in 2014 - IPC E21B7/08 

FIELD: oil and gas industry.

SUBSTANCE: equipment unit is designed so that it may be installed in the well bore and comprises surface of the outside wall intended for deflection of a cutter to form a branch hole as well as deflection of at least a part of the component for the completion assembly in direction towards the branch hole. A part of the component for the completion assembly represents an articulation joint used for completion of the side pipe branch and comprises an interrupter and a branch hole, subsystem for temporary plugging of the space between the above surface and a channel wherein the interrupter may be inserted and a bushing fixed to the temporary plugging and capable of shifting by a shutter. The above bushing is designed to prevent entrapment of at least a part of waste in a compactor, at that the above surface may be matched with a shutter and deflect the side pipe branch in direction towards the branch hole of the well.

EFFECT: completion of the branch hole of the well without shutter removal before its sidetracking.

14 cl, 8 dwg