DIAMOND BLADE DRILL BIT Russian patent published in 2018 - IPC E21B10/60 

FIELD: drilling of soil or rock.

SUBSTANCE: invention relates to a rock cutting tool, in particular to drill bits for drilling deep oil and gas wells. Diamond wing bit for drilling comprises a body provided with a central cavity, blades forming the main water passages, and diamond cutting elements mounted on the blades with an inclined channel communicating with the central cavity of the body. Inclined passage in the diamond cutting elements is provided with an output on a working surface with a displacement relative to the axis, forming a thickened and thinned part on the diamond cutting elements. Axis of the hole has an inclination towards the thickened part. Diamond cutting elements are mounted on the blades with the thinned part towards the main water passages.

EFFECT: technical result consists in increasing the operational life of the bit and increasing the efficiency of disposal of cuttings with a main flow of the washing fluid.

1 cl, 8 dwg