Deluge has developed a rod pumping system that operates on water

According to a report from the U.S. "Petroleum Technology Magazine," current oil prices are on the rise, and the energy costs associated with rod pump operations are also increasing. To address this issue, Deluge has developed an innovative natural energy engine that uses water as its primary power source, creating a more efficient and cost-effective rod pumping system. Carbon dioxide, when stored under high pressure, remains in a liquid state. When heated, it expands by up to 50%, while water only expands by about 2%. This property is leveraged in the new system: liquid CO₂ is placed beneath a plunger inside a cylinder. Warm water circulates around the cylinder, causing the CO₂ to expand and push the plunger upward. Then, cold water flows through the cylinder, causing the CO₂ to contract, which allows the plunger to descend. By alternating between warm and cold water, the plunger moves up and down, driving the rod pumping system continuously. A standard 0.61-meter stroke plunger powers conventional rod pumps. The new system, called the Deluge Artificial Lift 12-24, features a maximum stroke length of 12 inches (0.61 meters) and a load capacity of 2400 lbs (545 kg). It has been tested in shallow wells and is capable of operating at depths up to 915 meters with a stroke length of 3 meters. This is currently the largest natural energy engine in production, delivering 7.4 kW of power and requiring only a water source. In the Tipotdom oil field, hot water from a geothermal well—82°C and 0.21 MPa—is used to power the natural energy engine. There, 600 oil wells use modern rod pump systems with 95% water content. The device helps manage the pump cycle by calculating oil inflow time, improving production efficiency and reducing water output. The Hawaii Natural Energy Engine Laboratory conducted successful indoor tests using deep seawater at 40°C and surface seawater at 85°C. Additionally, a nine-well system in an oil field near South Kansas operated for 300 hours without issues. This system can pump fluids at speeds comparable to traditional units but consumes significantly less power. While conventional pumps typically require 7.4 to 8.8 kW, the CO₂ engine only needs 5.2 kW. With an efficiency of 40%, it outperforms steam or natural gas engines, which operate at around 28%. Test results highlight several advantages of the new engine: it can deliver up to 74 kW or more, has only one moving part, operates without expensive fuels, and has lower operating costs. Its power consumption is just 5% of a regular motor, and the cost to produce one cubic meter of crude oil is approximately $30. This makes it a highly promising technology for the future of oil extraction.

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