The invention relates to a throwing and
fishing injection dispenser, in particular to a
differential pressure flow meter-type smart adjustable throwing and
fishing injection dispenser, and aims to solve the problems that the eccentric injection dispenser used by the current oilfield
polymer injection well cannot continuously adjust injection amount, cannot achieve precise injection and has relatively poor sealing performance. The
differential pressure flow meter-type smart adjustable throwing and
fishing injection dispenser comprises an upper connector body, an upper cable body, a pin body, a pin bridging component, a pin locking nut, a motor housing, a bearing housing, a connecting body, an upper casing body, a lower connector body, a central tube, a bearing set ejecting wire, a rigid
coupling, an anti-rotating body, a middle cable connector
assembly, an upper cable connector
assembly, a shaft connecting rod, a vehicle-type seal installing frame, a bearing
assembly, a vehicle-type seal, a
pressure sensor, a motor, a plugger and a cable connector body. The
differential pressure flow meter-type smart adjustable throwing and fishing injection dispenser is applied to oilfields.