CO₂ Injection Pump

CO₂ Injection Pump
CO₂ Injection Pump
CO₂ Injection Pump
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High-pressure plunger pump for continuous carbon dioxide injection to maximize oil reservoir pressure and enhanced oil recovery (EOR)

  • Max. pressure: 60 MPa
  • Max. flow: 300 L/min

Juneng’s CO₂ injection pump features high efficiency, a compact structure, high reliability, and easy maintenance. The crankshaft position is fully lubricated, ensuring suitability for continuous operation while also facilitating hoisting and installation.

Application Scenarios

The CO2 injection pump is widely applied in multiple industries, such as:

  • Petroleum industry
  • Medical industry
  • Food industries
  • Plastics industry
  • Power industry
  • Printing and dyeing industry

It is mainly applied in:

  • Oil displacement
  • Food and beverage filling
  • Supercritical extraction
  • Refrigeration system
Parameter Tables

4-pole variable-frequency motor — Small pulley: 280 mm, large pulley: 800 mm

Motor Speed (r/min) 1480 Plunger Stroke (mm) 80
Theoretical Flow Motor Power (kW) Plunger Dia. (mm)
55 75 90 110 132
m³/h L/min Rated Pressure (MPa）
5.6 94 33 45 54 60 60 50
6.8 114 27 37 44 54 56 55
8 135 23 31 37 46 50 60
9.5 159 19 26 32 39 45 65
11 184 16 23 27 33 39 70
12.7 212 14 20 24 29 34 75
14.4 241 12 17 21 25 30 80

6-pole variable-frequency motor — Small pulley: 180 mm, large pulley: 800 mm, stroke rate: 85 SPM

Motor Speed (r/min) 980 Plunger Stroke (mm) 80
Theoretical Flow Motor Power (kW) Plunger Dia. (mm)
55 75 90 110
m³/h L/min Rated Pressure (MPa)
2.9 48 62 55
3.4 57 52 60
4.0 67 44 60 65
4.7 78 38 52 70
5.4 90 33 45 54 75
6.1 102 29 40 48 59 80

6-pole variable-frequency motor

Motor Speed (r/min) 980 Plunger Stroke (mm) 80
Theoretical Flow Motor Power (kW) Plunger Dia. (mm)
55 75 90 110
m³/h L/min Rated Pressure (MPa)
3.7 62 48 60 50
4.5 75 40 55 60 55
5.3 89 33 45 56 60 60
6.3 105 28 40 48 56 65
7.2 121 24 35 40 48 70
8.3 139 21 30 35 42 75
9.5 159 18 26 31 35 80

4-pole variable-frequency motor — Small pulley: 180 mm, large pulley: 800 mm, stroke rate: 128 SPM

Motor Speed (r/min) 1480 Plunger Stroke (mm) 80
Theoretical Flow Motor Power (kW) Plunger Dia. (mm)
55 75 90 110 132
m³/h L/min Rated Pressure (MPa)
3.63 60 50 50
4.3 73 41 56 55
5.2 87 34 47 56 55
6.1 102 29 40 48 59 60
7.1 118 25 34 41 51 61 65
8.1 136 55 30 36 44 53 70
9.2 154 19 26 31 39 46 75

4-pole variable-frequency motor — Small pulley: 212 mm, large pulley: 800 mm, stroke rate: 151 SPM

Motor Speed (r/min) 1480 Plunger Stroke (mm) 80
Theoretical Flow Motor Power (kW) Plunger Dia. (mm)
55 75 90 110 132
m³/h L/min Rated Pressure (MPa)
4.28 71 42 58 70 85 102 50
5.17 86 35 48 57 70 84 55
6.15 102 29 40 48 59 71 60
7.23 120 25 34 41 50 60 65
8.38 140 22 30 35 43 52 70
9.6 160 19 26 31 38 45 75
10.9 182 17 23 27 33 40 80

6-pole variable-frequency motor — Small pulley: 236 mm, large pulley: 800 mm, stroke rate: 111 SPM

Motor Speed (r/min) 980 Plunger Stroke (mm) 80
Theoretical Flow Motor Power (kW) Plunger Dia. (mm)
55 75 90 110 132
m³/h L/min Rated Pressure (MPa)
3.15 53 58 79 94 115 138 50
3.8 64 48 65 78 95 114 55
4.5 75 40 55 55 80 96 60
5.33 89 34 47 56 68 81.9 65
6.2 102 29 40 48 59 70.6 70
7.05 118 26 35 42 51 61.5 75
8 134 23 31 37 45 54 80

4-pole variable-frequency motor — Small pulley: 236 mm, large pulley: 800 mm, stroke rate: 168 SPM

Motor Speed (r/min) 1480 Plunger Stroke (mm) 80
Theoretical Flow Motor Power (kW) Plunger Dia. (mm)
55 75 90 110 132
m³/h L/min Rated Pressure (MPa)
4.76 79 38 52 62 76 92 50
5.76 96 31 43 52 63 76 55
6.84 114 26 36 43 53 64 60
8.05 134 23 31 37 45 54 65
9.3 155 20 27 32 39 47 70
10.7 178 17 23 28 34 41 75
12.2 203 15 20 24 30 36 80

6-pole variable-frequency motor — Small pulley: 212 mm, large pulley: 800 mm, stroke rate: 100 SPM

Motor Speed (r/min) 980 Plunger Stroke (mm) 80
Theoretical Flow Motor Power (kW ) Plunger Dia. (mm)
55 75 90 110 132
m³/h L/min Rated Pressure (MPa)
2.82 47 64 88 105 129 154 50
3.4 57 53 72 87 106 127 55
4.07 68 45 61 73 89 107 60
4.76 80 38 52 62 76 91 65
5.5 92 33 45 54 66 79 70
6.36 106 29 39 47 57 68 75
7.23 120 25 34 41 50 60 80

Note: The above parameters are theoretical data based on a medium specific gravity of 1.0.

Customer Cases

CO2 injection on-site application in Karamay, Xinjiang.

CO2 injection pump is not suitable for handling the following media:

  • Highly corrosive mixtures: CO₂ mixed with hydrofluoric acid (HF) or concentrated sulfuric acid may corrode pump components
  • High-viscosity fluids: When CO₂ is mixed with heavy oil or asphalt, plunger pump efficiency decreases
  • Flammable and explosive gases: CO₂ mixed with methane or hydrogen may pose explosion risks

CO₂ injection pumps help maintain reservoir pressure, promote crude oil mobility, and improve oil recovery efficiency efficiency.

CO₂ injection systems enhance crude oil fluidity and are a proven solution for increasing oilfield production.
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