METHOD FOR CLEANING wellbore while drilling the horizontal section EE and drill pipes for performing the method

摘要

1. A method of cleaning a wellbore during drilling of its horizontal sections comprising drilling process, wash liquid flow movement in the annulus and stem cuttings particles in the upper part of the cross section of the annulus, characterized in that the purification is carried out of the wellbore by preventing the deposition of sludge, which in during drilling flushing flow of liquid in the annulus is created by "activating its helical motion" rotation energy through the tube, thus preventing loss w lama and stem particles in its upper part cross section of the annulus is performed by centrifugal force "activated screw washing liquid flow in the annulus" 2. Tube for performing the method, comprising a tube body, a screw and an outer surface of the pipe, tool joints, characterized in that the outer surface of the pipe is helically twisted by its supply, at least three "activators screw washing liquid flow in the annulus" technologically made integrally with its body, as arranged with equal angular intervals on its outer surface, in cross-section in the shape of semicircular profiles, each of which is formed at the top in the form of " screw support zone "with a reference profile, aligned with the profile of the horizontal portions of the borehole bottom wall, wherein the radius of the semicircular profile" activator screw washing liquid flow in the annulus "corresponding pipe is determined by the formula: where the radius R- floor