OIL DEPOSIT DEVELOPMENT METHOD Russian patent published in 2010 - IPC E21B43/16 

FIELD: oil and gas industry.

SUBSTANCE: method involves withdrawal of oil through production wells, pumping of working agent through injection wells, installation of tubing string in production wells with bottom-hole oil pump and shank on rock in sump, arrangement of pump at maximum depth in antinode of the well adjusted for one of higher harmonics - modes of free vibrations of the system, setting of the pumping period, installation of the pump plunger travel, operation of pump and withdrawal of oil from the well with simultaneous dilatation-wave action on productive formations. According to invention, natural period of vibrations of liquid column in the well, which is open from the mouth, is determined, the pumping period is set equal to odd number of period of liquid vibrations; at that, pumping period is determined by the similar equation.

EFFECT: increasing oil recovery owing to increased intensity of wave field and efficiency of the action.

1 ex, 1 dwg