METHOD OF DIRECTED DRILLING WITH CORRECTION OF WELL TRAJECTORY Russian patent published in 2020 - IPC E21B7/06 E21B44/00 

FIELD: soil or rock drilling.

SUBSTANCE: invention relates to methods of adjusting operating parameters of drilling process and can be used in oil and gas industry when drilling inclined oil and gas wells. Method of directed drilling includes control of well trajectory by supply to drilling tool of axial load and torques, at which torsion torques are supplied to the bit, which ensure non-uniform rotation of the bit around the well axis or tangent to it, at that, the bit rotation speed around the well axis or tangent to it at rock destruction in the specified direction is installed less in comparison with the bit rotation speed around the well axis or tangent to it at rock destruction in other directions.

EFFECT: improving reliability and efficiency of drilling of inclined sections of well, increasing service life of drilling tool, increased rate of drilling progress and provision of smoother transition to straight-line section of well, preservation of well diameter, expansion of consumer functions.

1 cl, 1 dwg