Sanjack Double plunger injection-production oil well pump

Double plunger injection and production oil well pump is sanJack’s national patent product, which can realize the integrated operation of steam injection and oil recovery, and there is no need to replace the oil well pump during oil recovery, which greatly reduces the operating cost of oil field.

  • Sanjack also developed the oil well pumps with various processes of boronizing, nitriding, chrome plating
  • tungsten plating for special well conditions, and is able to provide customers with customized service of oil well pump.
  • Full support on your customised requirement

Double plunger injection-production oil well pump

The double plunger injection and recovery pump is suitable for heavy oil thermal recovery of single well steam huff and puff.

The operation is simple and fast, and one string operation can realize two major steps of steam injection and oil production.

The pump is simple and fast in injection and extraction conversion, and the steam injection operation can be carried out when the plunger is lowered to the bottom, and the oil extraction can be realized when the plunger is lifted up after the steam injection is closed.

Characteristics:

  1. The special structure can prevent barrel from scaling and damage after steam injection, and can prevent falling objects from entering the pump cavity.
  2. Special structure prevents damage to the casing by steam injection.
  3. The bottom of plunger is equipped with a special structure to prevent the high temperature and high pressure in the tubing string from damaging the plunger.

Application

Suitable for single well that requires steam injection for thermal recovery.

Double plunger injection-production oil well pump

The sucker rod pump adopts a double plunger mechanical valve structure, which is suitable for the cold production of heavy oil with a viscosity below 4000mPa • S and the production of oil wells with higher gas content.

It solves the problem of slow opening and closing of traveling valves in heavy oil wells and gas-containing wells, improves pump efficiency and extends pump service life.

The double plunger injection and recovery pump is suitable for heavy oil thermal recovery of single well steam huff and puff.

heavy oil thermal recovery

heavy oil thermal recovery

The operation is simple and fast, and one string operation can realize two major steps of steam injection and oil production.

The pump is simple and fast in injection and extraction conversion, and the steam injection operation can be carried out when the plunger is lowered to the bottom, and the oil extraction can be realized when the plunger is lifted up after the steam injection is closed.

Characteristics:

1.The special structure can prevent barrel from scaling and damage after steam injection, and can prevent falling objects from entering the pump cavity.

2.Special structure prevents damage to the casing by steam injection.

3.The bottom of plunger is equipped with a special structure to prevent the high temperature and high pressure in the tubing string from damaging the plunger.

Application:

Suitable for single well that requires steam injection for thermal recovery.

Type Size Parameters
Basic Dia., in
(mm)
Plunger Length,ft
(mm)
Barrel Length,ft
(mm)
Tubing Size Rod Size Pump Constant
Double plunger injection-production pump 25-175 1.75(44.45) Standard Lengths are: 2ft (0.61m) to 24ft(7.32m) in 1ft(0.306m) increments. Standard Lengths are: 4ft (1.219m) t034ft(10.363m) in 1ft(0.305m) 2 7/8 NU/EU 3/4in 2.235
25-225 2.25(57.15) 2 7/8 NU/EU 3/4in 3.694
30-275 2.75(69.85) 3 1/2 NU/EU 7/8in 5.518

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