Chudyk I. Scientific fundamentals development of the directed wells drilling with minimal charges of energy.

The thesis presents elaboration of scientific methods of directional well drilling and wash process control, taking into account power consumption. Regularities of energy consumption during drilling equipment operation, while drilling and washover of the directional wells, were set with the help of mathematical and computer simulation, and laboratory and industrial experiments. Methods of energy use estimating of the directional drilling processes were improved, scientific fundamentals of energy efficient washout and bottom-hole deepening while following the contour, were elaborated. The elaborated scientific statements successfully passed industrial test while drilling and are implemented into the production.