METHOD AND APPARATUS FOR SEISMIC STIMULATION OF PRODUCTION HORIZONS OF HYDROCARBON BEARING FORMATIONS

摘要

The method and apparatus for producing shock waves in a well wherein a device connected to the bottom of the tubing string in the borehole of the well filled by liquid and containing the damper, the upper and lower plungers movably arranged within corresponding cylinders for compressing the liquid inside the compression chamber and discharging the liquid into the borehole on upstroke thereby generating a shock wave. In addition, providing a length of upstroke Lstr of the pumping unit determined by the following expression: (I) where H1 is the length of the lower cylinder, L2 is the distance between the lower and upper plungers, D1 is the diameter of the lower plunger, D2 is the diameter of the upper plunger, Asw is the required amplitude of the generated shock wave, E is a modulus of elasticity of the sucker rod's material, dr is the diameter of the sucker rods.