DEVICE OF HYDROMONITOR DRILLING HEAD FOR HORIZONTAL DIRECTIONAL DRILLING Russian patent published in 2023 - IPC E21B7/04 E21B7/18 E02F5/18 E21C45/02 

FIELD: drilling.

SUBSTANCE: device of a hydromonitor drilling head for horizontal directional drilling includes a body of a drilling head with channels and nozzles, a control surface, a front surface, a central channel, a connection means, a generator of vibration oscillations and a replaceable element fixed in the body of the drilling head and made with the possibility of replacement. The replaceable element includes a disk containing at least one jet-forming nozzle, and a disk containing at least one resonating plate corresponding to the jet-forming nozzle. The mutual arrangement of the jet-forming nozzles with respect to the resonating plates in the replaceable element is adjusted using a control and measuring tool and is fixed in the replaceable element body with a pin. Replaceable elements contain the required number of jet-forming nozzles and resonating plates, they are replaced taking into account the characteristics of the strength properties of the soil and the capabilities of the pumping equipment of the drilling rig.

EFFECT: expansion of the technical characteristics of the rock cutting tool, as well as an increase in the efficiency of its operation.

1 cl, 1 dwg, 1 tbl