Pumping well without energy consumption liquid injection pump

Abstract

The invention relates to a liquid injection pump, in particular to a non-energy-consuming liquid injection pump for oil pumping wells, which is composed of a pump body, a plunger, a liquid inlet and a liquid outlet, and the lower side of the pump body is provided with a liquid inlet, There is a liquid outlet on the other side, one end of the plunger is placed in the inner cavity of the pump body, and the upper part of the inner cavity is provided with a packing that is fixed by a gland connected to the top of the pump body by a screw port, and the other end of the plunger is fixed on the upper part. Pressure plate, a spring is provided between the pressure plate and the annular boss on the upper part of the pump body, the upper screw of the liquid inlet is connected with the liquid inlet check valve body, and the liquid outlet screw is connected with the liquid outlet check valve body, The top of the plunger is slidingly connected with the beam in the pumping well. The invention utilizes the beam on the pumping unit to repeatedly move up and down to connect the liquid injection pump to provide power for it, saving some supporting facilities driven by electric power, so the pumping unit is small in size, light in weight, simple in structure, and does not consume electric energy during operation. The residual energy flow is adjusted accurately, and the cost is low.

Description

technical field [0001] The invention relates to a liquid injection pump, in particular to a non-energy-consuming liquid injection pump for oil pumping wells. Background technique [0002] In the process of oil field development, the water in the water injection well is injected into the oil reservoir through a special injection pump to maintain or restore the pressure of the oil layer, so that the oil reservoir has a strong driving force, so as to improve the production speed and recovery rate of the oil reservoir . At present, the liquid injection pumps on the existing oil production wells are all driven by electric power. Due to the uninterrupted work of the oil extraction machine and the liquid injection pump, the energy consumption of the liquid injection pump is relatively large, and there are many supporting facilities for the pump body. , It takes up a lot of space, which increases the operating cost, and the motor with low energy consumption often cannot reach the p...

AI Technical Summary

Problems solved by technology

At present, the liquid injection pumps on the existing oil production wells are all driven by electric power. Due to the uninterrupted work of the oil extraction machine and the liquid injection pump, the energy consumption of the liquid injection pump is relatively large, and there are many supporting facilities for the pump body. , takes up a lot of space, increases the operating cost, and the motor with low energy consumption often cannot reach the proper pump pressure, and cannot perform normal liquid injection

Images