METHOD TO EXCITE OSCILLATIONS IN WELL LIQUID

摘要

FIELD: mining, particularly to develop and rework producing wells, namely to stimulate reservoir fluid inflow. ^ SUBSTANCE: method involves lowering hammer connected to flexible suspension means in pipe string filled with liquid; exciting periodical oscillations by axial hammer movement with speed selected to transmit strikes of necessary force applied to pipe string walls; increasing hammer speed by transmitting rod pump piston movement energy thereto through pulley-block including flexible suspension means, wherein the rod pump is located in well over the hammer. The pulley-block comprises fixed block installed at lower end of rod pump cylinder and movable block connected to lower end of rod fastened to rod pump piston by upper end thereof. ^ EFFECT: increased speed of axial hammer movement and multiplication of wave reservoir fluid oscillation energy. ^ 1 dwg