Simulação do escoamento multifásico no interior de bombas de cavidades progressivas metálicas
The progressing cavity pumping (PCP) is one of the most applied oil lift methods nowadays in oil extraction due to its ability to pump heavy and high gas fraction flows. The computational modeling of PCPs appears as a tool to help experiments with the pump and therefore, obtain precisely the pump op...
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| Formato: | Dissertação |
| Idioma: | por |
| Publicado em: |
Universidade Federal do Rio Grande do Norte
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| Endereço do item: | https://repositorio.ufrn.br/jspui/handle/123456789/15688 |
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| Resumo: | The progressing cavity pumping (PCP) is one of the most applied oil lift methods
nowadays in oil extraction due to its ability to pump heavy and high gas fraction flows.
The computational modeling of PCPs appears as a tool to help experiments with the
pump and therefore, obtain precisely the pump operational variables, contributing to
pump s project and field operation otimization in the respectively situation. A
computational model for multiphase flow inside a metallic stator PCP which consider
the relative motion between rotor and stator was developed in the present work. In such
model, the gas-liquid bubbly flow pattern was considered, which is a very common
situation in practice. The Eulerian-Eulerian approach, considering the homogeneous and
inhomogeneous models, was employed and gas was treated taking into account an ideal
gas state. The effects of the different gas volume fractions in pump volumetric
eficiency, pressure distribution, power, slippage flow rate and volumetric flow rate were
analyzed. The results shown that the developed model is capable of reproducing pump
dynamic behaviour under the multiphase flow conditions early performed in
experimental works |
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