DOWNHOLE DIRECTIONAL TOOL Russian patent published in 2015 - IPC E21B23/00 E21B41/00 E21B7/08 

FIELD: oil and gas industry.

SUBSTANCE: group of inventions is referred to downhole tool, downhole system, method of the tool movement and usage of the tool to direct the device to side track. The downhole tool comprises a body connected to energy source and having directional beak to direct the tool to side track and connection ensuring rotating and turning of the directional beak, at that the tool comprises the second device containing a washer driven in axial direction placed concentrically in the tool body around the tool axis, moreover the washer driven in axial direction contains end surface faced to the connection, at that the above end surface of the washer is tilted and forms an angle with the line perpendicular to the central axis of the tool body, thereat the washer driven in axial direction is made so that it can be moved along the tool axis in order to fix the directional beak in position wherein the beak is tilted in regard to the tool axis, at that the downhole tool comprises an additional drive unit such as a step motor in order to rotate the washer driven in axial direction. Connection of the downhole tool has the first and second parts, at that the first part has a grove engaged with a key in the second part.

EFFECT: reliable directioning of the device to side track and potential passing of cables through the downhole tool.

17 cl, 12 dwg