METHOD OF SINKING OF DIRECTIONAL WELLS Russian patent published in 1995 - IPC

FIELD: mining. SUBSTANCE: point of the method consists in preliminary determination of actual axial load on the drill bit by any known method. Upon measuring axial load, coefficient of proportionality is determined for arrangement used to stabilize drilling direction, decrease and reach required curvature and process adapter is set at a distance from the edge of drill bit to the middle part of process adapter determined by the specified design formula. EFFECT: enhanced efficiency of sinking of the wells with straight and curved shaft.