METHODS AND SYSTEMS FOR DRILLING MULTI-BARREL WELLS Russian patent published in 2021 - IPC E21B7/08 E21B29/06 E21B23/12 

FIELD: oil and gas industry.

SUBSTANCE: group of inventions relates to the oil and gas industry, in particular to the drilling of multi-barrel wells. The deflector assembly includes a tubular housing containing a window in the wall of the tubular housing, a deflector located under the window and containing a cavity running along the axial length of the deflector, and an inclined surface of the deflector, the shape of which makes it possible to direct an object to the window; a rod plug, which is made with the possibility of connecting in a removable way inside the cavity and contains a socket and a second inclined surface, the shape of which makes it possible to direct the object to the window, combined with the inclined surface of the deflector. The rod plug is made with the possibility of connecting to the deflector so that it rotates together with the deflector.

EFFECT: number of descents for completing the well is reduced, the penetration of fluid through the deflector unit is prevented.

20 cl, 12 dwg