Hydraulic feedback sucker rod pump

Since 1986, the (General Machinery Plant) Sanjack Petro’s former has obtained the qualification for manufacturing Class I and II pressure vessels.

Now the SANJACK ‘s special equipment has the national A2 level (Ⅰ, Ⅱ, Ⅲ) pressure vessel manufacturing qualification; D-level pressure vessel design qualification; A-level boiler manufacturing, installation, alteration, repair & maintenance qualification; American Society of Mechanical Engineers ( ASME) U and S stamp qualifications.

Hydraulic feedback sucker rod pump

It is composed of two pumps with different pump diameters in series. It is suitable for cold recovery of heavy oil with viscosity below 4000mpa · s, thermal recovery of heavy oil with single well steam huff and puff, and oil well with low viscosity but frequent fracture.

 

Hydraulic feedback and anti-corrosion pump Equipped with stainless steel valve cover and cemented carbide valve pair, the corrosion resistance and stab resistance of the oil well pump are enhanced. It is suitable for heavy oil well with high salinity and easy corrosion.

Application

1.When the viscosity of crude oil is less than 4000mPa.S, the pump can be used for production without reducing viscosity.

2.Suitable for thermal recovery production of heavy oil wells with steam injection. Sand cut is supposed to be less than 0.1% and shall has low gas cut.

 

Characteristic of Hydraulic feedback sucker rod pump

1.Adopting the principle of hydraulic feedback to generate downward thrust during the downstroke of plunger, which can help the plunger overcome the resistance between the heavy oil and the sucker rod, reducing the breakage of sucker rod.

2.This pump doesn’t have standing valve, so oil drain is not needed in downhole. Oil draining or steam injection can be achieved once remove the plunger.

3.Steam injection of thermal recovery, wells flushing & back flushing, and sand flushing can be achieved without lifting the pipe string. The convenient operation will greatly reduce the operation cost.

 

Model25-175/150THFK

25-175/150THFKF

25-225/150THFK

25-225/150THFKF

30-275/175THFK

30-275/175THFKF

Nominal Diameter(mm)44.5/38.157.2/38.169.9/44.5
Stroke(m)1.8~7.3
Tubing size (in)2 7/83 1/2
Sucker rod size (in)3/47/8
Pump constant (K)1.6422.0523.283
Max. O.D. (mm)89.5108

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OCTG Tubing
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