Multiphase flow hybrid conveying pipeline resistance reduction device and method of mine field
A drag reduction device and mixed transportation pipeline technology, which is applied in pipeline systems, mechanical equipment, gas/liquid distribution and storage, etc., can solve problems such as large frictional resistance, different components of mixed transportation in oilfield blocks, and affect transportation efficiency. Achieve the effect of reducing the number of pigging, reducing the deposition of paraffin, and improving the transmission efficiency
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Embodiment 1
[0022] Example 1: When the fluid in the mixed transportation pipeline is oil-gas-water three-phase, the fluid flows into the reducer 6 from the upstream mixed transportation pipeline 1 through the flow meter 2, the pressure gauge 1 3, the valve 1 4 and the valve 2 5, and is accelerated by the tangential The inlet pipe 16 enters the device main body pipe 15 and forms a swirl in the annular space between the device main body pipe 15 and the hot water return pipe 18 . Due to the difference in density, the three phases of oil, gas and water form a stratified circulation in the pipeline 15 of the main body of the device. The water phase is close to the inner wall of the main pipe 15 of the device, avoiding the direct contact between the oil and the pipe wall, and greatly reducing the transportation resistance, while the gas phase is close to the hot water return pipe 18, and the oil phase is between the gas and water phases. Driven to move downstream. There is a hot water circulat...
Embodiment 2
[0023]Example 2: When the fluid in the mixed transportation pipeline is oil-water two-phase, the fluid flows into the reducer 6 from the upstream mixed transportation pipeline 1 through the flow meter 2, the pressure gauge 1 3, the valve 1 4 and the valve 2 5, and is accelerated by the tangential inlet The pipe 16 enters the device body pipe 15 and forms a swirl in the annular space between the device body pipe 15 and the hot water return pipe 18 . Due to the difference in density, the two phases of oil and water form a stratified circulation in the pipeline 15 of the main body of the device. The oil phase is close to the hot water return pipe 18, and the water phase is close to the inner wall of the main pipe 15 of the device, avoiding the direct contact between the oil and the pipe wall, and greatly reducing the transportation resistance. There is a hot water circulation system at one end of the oil-gas-water three-phase mixed flow swirl drag reducing device 7, and water flo...
Embodiment 3
[0024] Example 3: When the fluid in the mixed transportation pipeline is gas-water two-phase, the fluid flows into the reducer 6 from the upstream mixed transportation pipeline 1 through the flow meter 2, the pressure gauge 1 3, the valve 1 4 and the valve 2 5. The inlet pipe 16 enters the device main pipe 15 and forms a swirl in the annular space between the device main pipe 15 and the hot water return pipe 18 . Due to the difference in density, the two phases of gas and water form a stratified circulation in the main pipe 15 of the device, the water phase is close to the inner wall of the main pipe 15 of the device, and the gas phase is close to the hot water return pipe 18 . There is a hot water circulation system at one end of the oil-gas-water three-phase mixed flow swirl drag reducing device 7, and water flows in by the hot water inlet pipe 17 after being heated by the heating furnace 9, and flows out by the hot water return pipe 18. Circulating water heats the mixed tra...
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