METHOD FOR INCREASING AMPLITUDE OF WAVE ACTION ON PRODUCTIVE FORMATIONS Russian patent published in 2012 - IPC E21B43/16 

FIELD: oil and gas industry.

SUBSTANCE: in well liquid column there spread are forced pressure vibrations created in liquid: working agent flow at the outlet of well generator arranged in that liquid column and hydraulically connected to tubing through an obstacle the bottom of which is inlet obstacle-reflector (in the direction to casing pipe bottom) restricting the liquid column. Casing pipe bottom - well shoe is outlet obstacle-reflector restricting the liquid column on the other side. According to the invention, there created is increase in amplitude of longitudinal vibrations in well liquid column in operating modes of dynamic generator-well-obstacles system by providing the length of well liquid column, which is equal to or more than the wave length corresponding to the chosen frequency of action and installation of generator exit plane from bottom of inlet obstacle-reflector at the distance determined by mathematical expression.

EFFECT: improving productive formation capacity at increased distances of production wells from injection well and increasing total capacity by increasing the amplitude of forced longitudinal pressure vibrations of low and medium frequency in well liquid : working agent column in the modes different from modes with resonant excitation of well liquid column.

2 cl, 1 tbl, 3 dwg