SANTOS, W. R. G.; http://lattes.cnpq.br/5731279762924017; SANTOS, Wanessa Raphaella Gomes dos.
Résumé:
The multiphase flow occur in the stages of exploration, production, transportation,
processing and distribution of fluids, especially in the oil and gas industry. The use of
pipelines is the conventional, efficient and economical way to transport oil. Pipelines
are subject to damage because of the action of physico-chemical nature agents that can
deteriorate the duct, causing corrosion, breakage and disruption of fluid flow. Leakage
monitoring systems must be able to detect and locate a leak immediately, reducing the
risks of environmental and socio-economic impacts, increasing operational safety. From
this theme, this work aims to study theoretically the multiphase (oil, gas and water
flow), non-isothermal, transient and three-dimensional in vertical pipes with and
without leakage, with emphasis on the influence of roughness of the duct wall, and
dimensions of the leakage orifice. Results of velocity, pressure, temperature and volume
fraction distributions of the phases present in the flow are presented and analyzed. It
was found that both the wall roughness of the duct, phase gas and the inlet temperature
of the mixture affect directly on average pressure drop of the flow.
