METHOD FOR INCREASING RESERVOIR RECOVERY GENERATION WAVES ON NATURAL WAVEGUIDES Russian patent published in 2016 - IPC E21B43/16 E21B37/00 

FIELD: mining.

SUBSTANCE: invention relates to development of deposits of liquid hydrocarbons, specifically to methods for wave action on productive formations for intensification and increase productivity of sections of deposits with hard to recover or blocked reserves of liquid hydrocarbons. Method comprises preliminary measurement of geometrical and physical-mechanical properties of formation, based on which according to Frenkel-Bio model are calculated values of decrement of oscillation damping of transverse and longitudinal waves depending on frequency values of wave action. Wave action is performed on formation by generating waves with frequency corresponding to minimum decrement of attenuation. Process of wave action on formation is continued to ensure superposition of longitudinal and transverse waves in frequency band between minimum values of decrement of attenuation of longitudinal and transverse waves. This provides cleaning of pores of formation skeleton. Method includes successively changing frequency value of wave action and measuring productivity of formation. Optimum frequency is determined, at which formation productivity has maximum value, and wave action on formation, generating wave optimum frequency.

EFFECT: technical result is increase of productivity of formations with deposit liquid hydrocarbons.

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