PCP Pump System
Progressing cavity pump system increases efficiency by up to 60 percent
Low operating costs, low maintenance and extremely high efficiency: Thanks to the PCP pump systems from NETZSCH, it is possible to pump anything from light oil to crude oil with high sand, water and gas content at a constant pressure and flow rate. In addition, you significantly reduce your energy requirements. PCP is the abbreviation for progressing cavity pump.
The composition of crude oil is as varied as its density. Light oils with an API grade of 31 or higher to heavy crude oil with an API grade of less than ten are common in oil and gas production. The occasionally high sand, water and gas content quickly pushes most pumps to their limits. However, this is not the case for PCP pump systems from NETZSCH. Thanks to the innovative design, they pump effectively even in low-quality oil fields. In a PCP pump system, the stator is usually inserted into the well at the lower end of the production pipe, while the rotor is connected to the lower end of the suction rod. By rotating the rod string using a surface drive system, the rotor turns within the stationary stator, creating the pumping action required to deliver fluids to the surface. Due to the small outer diameter, installation is straightforward and cost-effective.
PCP pump systems impress with high efficiency
In addition to pumping at a constant pressure and flow rate, PCP pump systems can work almost without pulsation and shear force. Therefore, emulsion effects in the oil-water mixture are avoided. This makes separating the oil-water mixtures at the surface much more accessible. However, the key advantage of the progressing cavity pump system is its extremely high efficiency. This makes even pumping under the most challenging conditions effective again. For example, the volumetric efficiency of a borehole progressing cavity pump is between 75 and 90 percent, which is significantly higher than that of conventional pumps. Electric submersible pumps or the frequently used horsehead pumps sometimes only have an efficiency of less than 35 percent.
Advantages
Technique
- Easy installation and operation
- High efficiency
- Different versions for different requirements
- Ability to pump high concentrations of sand or other solids
- Ability to pump high proportions of free gas
- No valves or reciprocating parts to clog, block gas or wear out
- Low shear rates (prevent emulsification of liquid by agitation)
- Low noise level at the surface
| Name | Stator size (inch) | Pressure max. (bar) | Capacity max. (m³/d at 100 rpm) | Speed (rpm) |
|---|---|---|---|---|
| NTZ Single Lobe 166 | 1.66 | 240 | 1.1 | 500 |
| NTZ Single Lobe 238 | 2.3/8 | 300 | 20 | 500 |
| NTZ Single Lobe 278 | 2.7/8 | 300 | 14 | 500 |
| NTZ Single Lobe 350 | 3.1/2 | 300 | 80 | 500 |
| NTZ Single Lobe 400 | 4 | 300 | 170 | 500 |
| NTZ Single Lobe 450 | 4.1/2 | 300 | 80 | 500 |
| NTZ Single Lobe 500 | 5 | 220 | 98 | 500 |
| NTZ Single Lobe 550 | 5.1/2 | 220 | 176 | 500 |
| NTZ Single Lobe 658 | 6.5/8 | 108 | 330 | 500 |
| NTZ Multi Lobe 238 | 2.3/8 | 240 | 14 | 500 |
| NTZ Multi Lobe 278 | 2.7/8 | 240 | 32 | 500 |
| NTZ Multi Lobe 350 | 3.1/2 | 300 | 40 | 400 |
| NTZ Multi Lobe 400 | 4 | 240 | 142 | 350 |
| NTZ Multi Lobe 450 | 4.1/2 | 240 | 150 | 260 |
| NTZ Multi Lobe 500 | 5 | 200 | 226 | 211 |
Further sizes and technical data on request.
Worldwide service and support for your pump and system
Our service and support do not end with the purchase. From consultation, spare parts and maintenance to the repair and modernisation of your pump - we support you right from the start.
Thanks to our worldwide service network, we are ready for you around the clock in case of an emergency.
Applications NEMO® PCP pump systems
FAQ progressing cavity pumps
Progressing cavity pumps are particularly suitable for pumping highly viscous, abrasive, solid-laden or shear-sensitive media. Typical applications include the chemical, food, environmental, paper and building materials industries, as well as the oil and gas sector.
NEMO® progressing cavity pumps from NETZSCH Pumps & Systems are characterised by gentle, low-pulsation pumping, high dosing accuracy and a wide range of applications. They enable a constant delivery rate even with changing pressures and media compositions.
Progressing cavity pumps can be used to convey low-viscosity to highly viscous media, including slurries, suspensions, pastes, media with a high solids content, and sensitive or gas-laden liquids.
Yes, progressing-cavity pumps are self-priming and exhibit excellent suction performance. This makes them ideal for applications with changing fill levels or difficult suction conditions.
Maintenance requirements are low and predictable. Wear parts such as the rotor and stator can be easily replaced. Maintenance-friendly designs enable short downtimes and high plant availability.
The service life depends on factors such as the medium, speed, pressure and choice of materials. Professional design and the use of original spare parts ensure a long service life and economical operation.
All relevant original spare parts are available for progressing cavity pumps from NETZSCH Pumps & Systems, including rotors, stators, seals, joint parts and other wear-related components. The spare parts are precisely matched to the pump design and ensure high operational reliability.
The correct spare part can be identified by the machine number, serial number, or item number. Spare parts lists, sectional drawings and the operating and maintenance instructions also provide support. Alternatively, the NETZSCH Pumps & Systems service team can provide expert advice on selecting the right original spare part.
The experts at NETZSCH Pumps & Systems will assist you in the design, selection and integration of the right progressing cavity pump – tailored to your specific pumping tasks and process requirements.
