A dual-nozzle-based on-line measurement method for oil well multiphase fluid fractional holdup
A metering method and multiphase flow technology, applied in the field of multiphase flow metering, can solve the problems of high gas content and lack of adaptability, and achieve the effects of small footprint, improved accuracy, and convenient installation
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[0057] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further clarified below in conjunction with specific drawings.
[0058] to combine figure 1 Shown is a schematic diagram of an on-line metering method for oil well multiphase fluid phase holdup based on dual nozzles provided by the present invention, such as the first nozzle throttling member 5 and the second nozzle throttling member 6 connected in sequence, and the The first high-precision differential pressure gauge 2 at both ends of the first nozzle throttling member 5, and the second high-precision differential pressure gauge 3 arranged at both ends of the second nozzle throttling member 6;
[0059] An integrated temperature and pressure sensor 1 is provided at the end of the first nozzle throttling element 5 away from the second nozzle throttling element 6;
[0060] A radio frequency moisture meter 4 is prov...
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