Diaphragm type electric submersible reciprocating pump oil extraction method and system

The invention provides a diaphragm type electric submersible reciprocating pump oil extraction method and system, and relates to the technical field of oil extraction engineering in oil-gas field development. The diaphragm type electric submersible reciprocating pump oil extraction system comprises a drill bit, a diaphragm type electric submersible reciprocating pump integrated unit, an oil drain valve, a novel submersible cable, a cable protector, an oil pipe, a special Christmas tree, a junction box, a ground special frequency conversion flexible intelligent control system control cabinet and a transformer. The bottom end of the diaphragm type electric submersible reciprocating pump integrated unit is fixedly connected with a drill bit. Through the diaphragm type electric submersible reciprocating pump oil extraction system, the pump inspection period is prolonged, the one-time investment cost is reduced, meanwhile, the integrated structural design reduces the unit size, installation operation is easy, the