METHOD TO DETERMINE FEATURES OF BEDS, REALISATION OF NAVIGATION OF DRILLING TRAJECTORIES AND PLACEMENT OF WELLS WITH REGARD TO UNDERGROUND DRILL WELLS Russian patent published in 2015 - IPC E21B47/24 E21B44/00 G01V9/00 

FIELD: mining.

SUBSTANCE: method is proposed to direct drilling of a drill well in a target underground bed, including stages of preparation of drilling equipment, having a layout of a bottom of a drilling string, which includes a controlled subsystem of directional drilling and a directional measurement logging instrument during drilling with the possibility of circular viewing and anticipatory viewing; determination of availability of the specified type of bed feature in a target bed; and navigation of a drilling trajectory in a target bed by drilling equipment, which includes reception of measurement signals from the directional measurement instrument, production of bed parameter indices on the basis of received measurement signals in respect to a bed feature in the target bed and control of a subsystem of directional drilling for drilling in the direction determined depending on produced indices of bed parameters.

EFFECT: expansion of functional capabilities and increased information value of tests.

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