DRILLING ASSEMBLY USING A TILTED CRUSHER TO DRILL DIRECTIONAL WELL BORES Russian patent published in 2021 - IPC E21B7/06 

FIELD: oil production.

SUBSTANCE: group of inventions relates to the field of directional drilling. A device for use in wellbore drilling comprises a crushing device comprising a tilt change device configured to tilt the crushing device relative to a tilt change device and an electromechanical actuator, and an electromechanical actuator comprising at least one force application element that transfers the force to the crushing device for tilting the crushing device relative to the tilting device and a rotating element having an inclined surface in contact with at least one force application element configured to cause a reciprocating movement of the force application element to transfer the force to the crushing device. The rotating element is an inclined washer that is designed to rotate in the direction opposite to the direction of the crushing device rotation so as to maintain the inclination of the crushing device relative to the wellbore geostationary.

EFFECT: rotating element and the angle of inclination of the drill bit are maintained geostationary.

11 cl, 3 dwg