GEYSER GEOTHERMAL Submersible Pumping Systems
Geyser geothermal submersible pumping systems deliver high-temperature reservoir fluid to the surface reliably and at a fraction of the power consumption required for competing geothermal submersible pumps (GSPs).
Problem
Most submersible pumps fail as result of the high reservoir temperatures and flow rates required to produce geothermal fluid to the surface. Equipment that can withstand the harsh environment uses a significant amount of the electricity generated to power the downhole pump.
Solution
Novomet modified existing electrical submersible pumping (ESP) system technology—proven reliable and efficient for years in oil production—to perform in the high-temperature, high-scale, high-flow environment found in geothermal wells.
Novomet engineers started with permanent magnet motors because they are proven to be reliable and to reduce power consumption. They modified these rugged downhole motor designs with heat-resistant components and added high-temperature synthetic motor oil. They also included multiple hydro-protectors, two independent thrust bearings, and a dual-tandem configuration to further increase reliability. The result is a highly reliable, highly efficient, high-flow GSP system that operates reliably in geothermal wells with temperatures up to 200°C (392°F).
BENEFITS
Our geothermal-specific design can withstand temperatures up to 200°C and pump 10,000 m3 per day while using 25% less power than competing GSPs
Our permanent magnet motors help reduce power consumption, increase runlife, and improve efficiency
Highly efficient pump stages reduce drag and friction, improve flow, and further reduce power requirements
applications
- Geothermal wells
- High-temperature fluid production
capabilities
- Tolerates temperatures up to 200°C (392°F)
- Pumps up to 10,000 m3/d (416 m3/h, 116 l/s, 1834 gpm)
- Requires 25-28% less power than competing systems
features
- PMM and high-efficiency pump stages combine to deliver significant power savings, enabling geothermal producers to reduce power consumption and increase electricity production per pump
- Heat-resistant components, multiple protectors, and independent thrust bearings improve reliability and runlife
Background and application
Most power plants rely on steam to make storable and usable power. Steam drives a turbine that activates a generator to produce the electricity people need to live and work. Fossil fuels are typically used to heat water to make the steam that drives this process.
Geothermal wells use hot water from subterranean reservoirs to produce the steam needed to generate electricity without the need for burning fossil fuels. The result is a renewable, green form of power that reduces the grams of carbon needed to produce a kilowatt hour of electricity.
Deliver electricity to the people, not to the pump
Geyser geothermal submersible pumping (GSP) systems use 25-28% less power compared to competing GSPs. Geyser GSP systems are ideal for use in both geothermal binary cycle power plants and in water heating operations to boost production. Because they can be sped up and slowed down, or even stopped, on demand without reducing efficiency, Geyser GSPs offer a significant advantage over other geothermal pumps. And unlike old standard line shaft pumps, Geyser GSPs can be set deeper in the well and deliver significantly more production.
Novomet has optimized the Geyser GSP systems to be more efficient than competing technologies. After looking at competing pumps, proper optimization and superior design has resulted in Geyser pumps consuming only 0.9 kW per cubic meter of geothermal fluid pumped, as compared to the nearest competitor, which is consuming 1.25 kW per cubic meter of geothermal fluid pumped.
The Geyser GSP system uses less than 75% of the power needed by its next closest competitor, delivering 25-28% more fluid per kilowatt and further reducing carbon emissions.
TECHNICAL CHARACTERISTICS
|
Size (RU) |
Size |
Capacity |
Max Head |
||
|
N744 PMM 500 KW |
N744 PMM 1000 KW |
N900 PMM 2000 KW |
|||
|
8 |
6.77 in |
30000 bbl/d (@60Hz) |
2297 ft |
3937 ft |
7874 ft |
|
172 mm |
4000 m3/d (@50Hz) |
700 m |
1200 m |
2400 m |
|
|
9 |
7.40 in |
38000 bbl/d (@60Hz) |
1969 ft |
3773 ft |
7218 ft |
|
188 mm |
5000 m3/d (@50Hz) |
600 m |
1150 m |
2200 m |
|
|
9 |
7.40 in |
47500 bbl/d (@60Hz) |
1640 ft |
3117 ft |
6562 ft |
|
188 mm |
6300 m3/d (@50Hz) |
500 m |
950 m |
2000 m |
|
|
10 |
9.00 in |
75500 bbl/d (@60Hz) |
984 ft |
2297 ft |
4593 ft |
|
229 mm |
10000 m3/d (@50Hz) |
300 m |
700 m |
1400 m |
|
|
10 |
9.00 in |
60000 bbl/d (@60Hz) |
1312 ft |
2953 ft |
5742 ft |
|
229 mm |
8000 m3/d (@50Hz) |
400 m |
900 m |
1750 m |
|
Geyser Geothermal Submersible Pump (GSP) Case Studies
