Multiphase flow drag reducer assembling apparatus and assembling method
A drag reducer, multi-phase flow technology, applied in gas/liquid distribution and storage, pipeline systems, mechanical equipment, etc., can solve problems such as the inability to effectively reduce flow resistance, and achieve the effect of composition optimization and dosage optimization.
Inactive Publication Date: 2012-11-28
XI AN JIAOTONG UNIV
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Problems solved by technology
Conventional drag reduction methods that rely solely on reducing frictional resistance cannot effectively reduce flow resistance in this system
Method used
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[0015] A specific structure of the present invention is as figure 1 As shown, it includes: reservoir 1, polymer drag reducer storage chamber 2, surfactant storage chamber 3, partition 4, polymer additive inlet 5, surfactant additive inlet 6, additive inlet valve 7 , Pressure introduction valve 28, assembly valve 29, connecting flange 30, etc.
[0016] First, connect the multiphase flow drag reducer assembly device to the multiphase flow pipeline through the flange 30, then close the pressure introduction valve 28 and the assembly valve 29, isolate the reservoir 1 from the pressure of the multiphase flow pipeline, and open the additive The inlet valve 7 is used to add the polymer drag reducer from the additive inlet 5 to the polymer drag reducer storage chamber 2 , and add the surfactant to the surfactant storage chamber 3 from the additive inlet 6 . After the additive is finished, close the additive inlet valve 7. For polymer drag reducers and surfactants, close injection va...
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The invention discloses a multiphase flow drag reducer assembling apparatus and an assembling method for online assembly of a multiphase flow compound drag reducer. The assembling apparatus is formed by connecting a drag reducer absorber, an assembling mixer, an assembling pipe and multiphase flow different flow type drag reducer injection nozzles and drag reducer injection valves, a drag reducerstorage device and a joining pipe. The drag reducer absorber has a polymer drag reducer storage chamber and a surfactant storage chamber. The polymer drag reducer storage chamber and the surfactant storage chamber are connected with the different flow type drag reducer injection valve and the drag reducer injection nozzles. The drag reducer injection nozzles, the assembling mixer and the joining pipe and the like are communicated with the drag reducer absorber. The drag reducer absorber is connected with the multiphase flow pipeline and absorbs the drag reducer to the multiphase flow by meansof the differential pressure generated by the multiphase fluid flowing through the zoom sprayer nozzle to inject the compound drag reducer. The invention makes a breakthrough on the traditional method of adopting the polymer drag reducer or the surfactant drag reducer individually and can reduce the power consumption for various multiphase flows under same fluid flow transmitted so as to obtain the optimal anti-drag effect.
Description
technical field [0001] The invention relates to a multiphase flow drag reducer assembler and an assembly method, which are used for on-line assembly of multiphase flow drag reducers under different flow pattern conditions, and are suitable for oil and gas field production pipelines, oil and gas transmission pipelines, and submarine multiphase Drag reduction in flow pipes. Background technique [0002] Multiphase flow (gas-liquid two-phase flow and oil-gas-water three-phase flow) has different flow patterns, which is one of the important differences between multiphase flow drag reduction and single-phase flow drag reduction, and must be aimed at different flow patterns of multiphase flow Assembling the composite drag reducer is the basic starting point of the present invention. [0003] From the perspective of engineering background, high friction and high energy consumption are the basic characteristics of two-phase and multiphase flow, which are not conducive to the pipeli...
Claims
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IPC IPC(8): F17D1/16
Inventor 刘磊
Owner XI AN JIAOTONG UNIV