The ESPCP replaces the traditional pumping unit, is a new generation of rodless oil production technology, no dynamic equipment on the ground, high system efficiency, with high efficiency and energy saving, green environmental protection, safety and reliability, intelligent management and other characteristics, favored by oilfield customers. The ESPCP unit is run in the well. Power cable is used to transmit power to the downhole submersible motor, which drives the rotation of the progressing cavity pump and lifts the well fluid to the surface by the progressing cavity pump. At present, it has been applied to many oil fields at home and abroad, with a total of thousands of Wells.