FIELD: bore-hole drilling technology. SUBSTANCE: invention relates to drilling of directed bore-holes. Drilling of bore-hole in geological formation is performed by drilling device which has drilling string passing into bore-hole. Also provided is bottom-hole motor incorporating body and driving shaft for rotation of drilling head. Driving shaft is oriented at incline with respect to longitudinal axis of lower part of drilling string. Body of motor is connected with lower part of drilling string so as to allow for rotation of motor body around longitudinal axis. Drilling device incorporates electric motor intended for rotation of motor body around longitudinal axis of lower part of drilling string and also relative to drilling string. According to method, actually straight section of bore-hole is drilled due to inducting electric motor for rotation of motor body continuously around longitudinal axis of lower part of drilling string and relative to drilling string. Electric motor operates at bottom-hole for rotation of drilling head. Drilling head is oriented accordingly for drilling of inclined section of bore-hole with motor body kept stationary. Application of method and device allows for driving straight and inclined sections of bore-hole by using operating units of conventional design, thus enhancing efficiency of drilling. EFFECT: higher efficiency. 8 cl, 1 dwg
