FIRLD: oil and gas industry.
SUBSTANCE: the invention relates to oil and gas industry, in particular, to method of directional drilling of wells. The rock drill is actuated with an engine positioned in bent sub and with drill stem, working independently from each other. The rotation rate of the drill is periodically changed along the angle of target stripping of disproportionate rock amount within the azimuth dome, the rate is changed from the first rotation rate to the second rotation rate. Furthermore, the second rotation rate is maintained along this angle, then the drill is rotated with the first rotation rate. The rotation rate is changed by changing the rotation rate of the drill engine or of the drill stem.
EFFECT: maintained the well direction with precise trajectory, flexible control of the well trajectory during drilling at any depth and in any direction.
7 cl, 8 dwg
