IMPROVED METHOD FOR THE DRILLING OF OIL WELLS

摘要

Method for the drilling of oil wells and for the positioning of the appropriate casings, consisting in drilling the well section of interest and, during the drilling, in maintaining a high degree of hole regularity by the use of automatic verticality and/or curvature control equipment. This method allows the positioning of casings with an almost constant clearance with values of +/- 1.5 inches for the whole well depth (lean profile).