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According to the US "Petroleum Technology Magazine" report, the current oil price continues to rise, and the power cost of the rod pump production continues to rise. In order to reduce the cost of rod pumping, Deluge developed a natural energy engine and developed a rod pumping system that relies on water.
Carbon dioxide, which is usually stored under sufficient pressure, can remain in a liquid state, and its volume can expand by 50% when the temperature rises, while water can only expand by 2%. Therefore, the liquid carbon dioxide is charged under the plunger in the cylinder, firstly the warm water flows through the periphery of the cylinder, and the volume of the carbon dioxide expands, pushing the plunger to work upward. After the cold water is passed through the cylinder, the carbon dioxide will shrink and the plunger will descend. In this way, the warm water and the cold water are alternately flowed through the periphery of the cylinder, and the plunger can alternately move up and down to drive the rod pumping system.
Typically a 0.61 meter stroke plunger provides power to a conventional rod pump. The new rod pumping system, which has been successfully developed, is called the Deluge artificial lift 12-24, meaning it has a maximum stroke length of 12 inches (0.61 m) and a maximum load of 2400 lbs (545 kg).
The system has been tested on a shallow well and has designed a system with a pump depth of 915 meters and a stroke length of 3 meters. The largest natural energy engine currently manufactured, with a power of 7.4 kW and any source of water. In the Tipotdom oil field, hot water in a geothermal well with a temperature of 82 ° C and a pressure of 0.21 MPa is used to supply a natural energy engine. The oil field has 600 oil wells produced using a modern conventional rod pump system with 95% water content and a timer to reduce water content. The device can be used to control the pump suction cycle by calculating the oil inflow time and increase the production of the well.
The Hawaii Natural Energy Engine Laboratory successfully conducted indoor tests on natural energy engines using deep seawater at 40 °C and shallow seawater at 85 °C. The company's nine well system in an oil field near South Kansas has been successfully operated for 300 hours.
The system can pump well fluid at a certain speed, which is not much different from conventional pumping units, but it consumes little power. Conventional pumping units typically require an engine of 7.4 to 8.8 kW, while a carbon dioxide engine requires only 5.2 kW. The new engine has an efficiency of 40%, while the steam or natural gas engine is only 28%.
The test results show that the new engine has many advantages compared with the conventional engine: its rated power can be increased from 15 kW to 74 kW or higher, it has only one moving part, can operate without consuming expensive energy, and the operating cost Lower, the power consumption is only 5% of the ordinary motor, and the cost of producing 1 cubic meter of crude oil is only 30 US dollars.
Carbon dioxide, which is usually stored under sufficient pressure, can remain in a liquid state, and its volume can expand by 50% when the temperature rises, while water can only expand by 2%. Therefore, the liquid carbon dioxide is charged under the plunger in the cylinder, firstly the warm water flows through the periphery of the cylinder, and the volume of the carbon dioxide expands, pushing the plunger to work upward. After the cold water is passed through the cylinder, the carbon dioxide will shrink and the plunger will descend. In this way, the warm water and the cold water are alternately flowed through the periphery of the cylinder, and the plunger can alternately move up and down to drive the rod pumping system.
Typically a 0.61 meter stroke plunger provides power to a conventional rod pump. The new rod pumping system, which has been successfully developed, is called the Deluge artificial lift 12-24, meaning it has a maximum stroke length of 12 inches (0.61 m) and a maximum load of 2400 lbs (545 kg).
The system has been tested on a shallow well and has designed a system with a pump depth of 915 meters and a stroke length of 3 meters. The largest natural energy engine currently manufactured, with a power of 7.4 kW and any source of water. In the Tipotdom oil field, hot water in a geothermal well with a temperature of 82 ° C and a pressure of 0.21 MPa is used to supply a natural energy engine. The oil field has 600 oil wells produced using a modern conventional rod pump system with 95% water content and a timer to reduce water content. The device can be used to control the pump suction cycle by calculating the oil inflow time and increase the production of the well.
The Hawaii Natural Energy Engine Laboratory successfully conducted indoor tests on natural energy engines using deep seawater at 40 °C and shallow seawater at 85 °C. The company's nine well system in an oil field near South Kansas has been successfully operated for 300 hours.
The system can pump well fluid at a certain speed, which is not much different from conventional pumping units, but it consumes little power. Conventional pumping units typically require an engine of 7.4 to 8.8 kW, while a carbon dioxide engine requires only 5.2 kW. The new engine has an efficiency of 40%, while the steam or natural gas engine is only 28%.
The test results show that the new engine has many advantages compared with the conventional engine: its rated power can be increased from 15 kW to 74 kW or higher, it has only one moving part, can operate without consuming expensive energy, and the operating cost Lower, the power consumption is only 5% of the ordinary motor, and the cost of producing 1 cubic meter of crude oil is only 30 US dollars.
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Changhong Machinery Manufacture Co., Ltd. , http://www.dzpumpfluid.com