Sucker Rod pump from ZYBY

Working Principle

1. Oil pumping: Similar to common oil well pumps, the fluid in well enters the pump through the bridge oil inlet valve (8) in the swabbing process and then will be discharged to the top of pump through long plunger (4).

2. Sand control: The sand enters the sand settling pipe 11 below the pump through the annular space between the sand settling outer cylinder 6 and pump barrel 3. And some sand deposited in the barrel will be brought outside of pump by oil flow due to the short pump barrel. If pumping is interrupted midway, the sand in the fluid in the tubing at top of pump will be also deposited in the sand settling pipe so as to avoid sand plug and sand burial.

Working Principle

1. Oil pumping: Similar to common oil well pumps, the fluid in well enters the pump through the bridge oil inlet valve (8) in the swabbing process and then will be discharged to the top of pump through long plunger (4).

2. Sand control: The sand enters the sand settling pipe 11 below the pump through the annular space between the sand settling outer cylinder 6 and pump barrel 3. And some sand deposited in the barrel will be brought outside of pump by oil flow due to the short pump barrel. If pumping is interrupted midway, the sand in the fluid in the tubing at top of pump will be also deposited in the sand settling pipe so as to avoid sand plug and sand burial.

3. Outstanding comprehensive mechanical performance :The long plunger is processed by integral spray welding.The inside surface of pump barrel is chrome plated. The valve seat material is hard alloy. So that enables high resistance of abrasion, corrosion and erosion.

Application of forced top oil outlet cage: As the top oil outlet cage is not limited by the pump bore diameter, the wall thickness increases, which improves the intensity a lot. So that it makes up the easy fracture defect of  conventional pump’s oil outlet cage because of the thin wall.