PPG heterogeneous ground volumetric distribution stepless adjustment device

Polymer flooding-dominated chemical enhanced oil recovery (EOR) technology ranks among the pivotal techniques for boosting oil recovery. Layered injection is a more effective approach to enhancing the efficiency of polymer flooding. Aiming to address the issue that ground-mounted control valves in existing two-stage layered injection systems cannot adjust injection pressure, a ground distribution device has been developed. This device can regulate injection pressure. It mainly consists of a hydraulic reversing mechanism, a reciprocating motion mechanism, and a synchronous handle mechanism. Pressure and flow rate adjustments are achieved through variable-frequency regulation technology. The development of this device ensures the effectiveness of heterogeneous combination flooding applications. It resolves the problem of being unable to precisely regulate injection pressure during the layered injection process, thus further increasing the oil recovery rate of polymer-injection wells.