DEVICE AND METHOD OF TARGET GUIDANCE AT DRILLING Russian patent published in 2016 - IPC E21B47/02 E21B7/04 E21B44/00 E02F5/18 

FIELD: mining.

SUBSTANCE: invention relates to underground directed drilling, and more specifically to target guidance at drilling, device and method related to it. Device used together with system for performing horizontally directed drilling; system includes drill string extended from drilling rig to drill bit so that drill bit controlled based on orientation by roll. System also includes device for control commands generation to direct drilling tool on target position. In response, at least partially, to said control commands, display is configured to selectively display turn, pushing commands and by rotation command. Described is control indicator, which displays current orientation by roll of drilling tool. 3-D grid may be animated and centered on control indicator or target indicator.

EFFECT: rounding of control commands ratio allows to limit display by only such orientations by target roll, which given drilling tool transducer can measure and display.

30 cl, 10 dwg