Annulus Thermal Recovery Pump Oil Well

Annulus Thermal Recovery Pump Oil Well
The heavy oil wells recovery by cable heating technology can be used for effective recovery of heavy oil, easy to operate, and low cost of exploitation, and it is suitable for heavy oil wells with relatively low viscosity.

It is suitable for electric cable heating to extract oil wells for heavy oil well.
The long plunger sand control pump is a dipper pump for use in oil wells containing abrasive or dirty fluids. This pump has a long, smooth plunger that passes through a relatively short liner section with tight tolerances in between. The cylinder liner works the entire length of the plunger without going over either end. Sharp corners on the liner wipe the surface of the plunger clean with each stroke, preventing sand from entering the area between the liner and the plunger. The oversized top plunger cage creates turbulence in the chamber above the top bushing, further preventing sand from accumulating in this area.
https://youtu.be/o0H6vFAdobc


During the pumping stroke, the turbulence created by the movement of the pump barrel assembly prevents sand from settling on the compression assembly, which can cause the pump to become stuck in the tubing. During shutdown, the mobile valve acts as a check valve to prevent sand from entering the pump bore.

1) Hollow structure, the hollow sucker rod can be connected up and down, and the cable can be connected to the middle of the bottom of the pump;
2) Both the moving valve and the fixed valve are mechanical ring valves, which can be opened and closed in time and the sealing is reliable;
3) No need to move the tubing string, the plunger and fixed valve can be lifted out of the hollow sucker rod string for pump inspection.
Application:
Heavy oil wells that require heating cables to perform over-pump heating of the crude oil in the pipe string; test wells that require oil extraction and under-pump testing.
https://youtu.be/VB51hbw5ds8

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