PCP Down-hole Pump

Working principle:

As a positive displacement pump, it forms a seal chamber that is not connected with each other by the interference fit between the eccentric rotor and the fixed stator. Through the rotation of the rotor in the stator, the seal chamber moves axially from the inlet end of the pump to the outlet end, so that the medium in the seal chamber can be transported through the pump.

The PCP Down-hole Pump has the following characteristics:

● Simple equipment structure

Small size, low transportation cost; The ground device is simple, the floor area is small, and the installation and maintenance are convenient.

● Suitable for heavy oil exploitation

Generally speaking, downhole screw rod pump is suitable for the exploitation of crude oil with viscosity below 8000mPa. s, so most heavy oil wells can be used.

● Suitable for wells with high sand content

Because the stator rubber has good tolerance, it can be used in oil wells with high sand content.

● Suitable for high gas bearing wells

The downhole screw rod pump will not have air lock, so it is more suitable for oil-gas mixed transportation, but the free gas at the inlet of the downhole pump will affect the volumetric efficiency.

● Suitable for cluster wells and horizontal wells in offshore oilfield

The downhole pump can be run in the inclined and straight section, and the equipment structure is simple, the floor area is small, and the transportation and maintenance costs are low, so it is suitable for offshore oil production.

Subtor PCP down-holepumping system has unique advantages:

The overall efficiency of the system is more than 55%, making it superior to other manual lifting systems;

The installation depth can reach 2000m, and the daily liquid output can reach 350m 3/ Day, meeting the production requirements of most oil wells;

At the same time, we can provide necessary equipment such as downhole drive device, tubing torque anchor, rod centralizer, etc.