Estudo do escoamento multifásico, transiente e não isotérmico em oleodutos com conexões curvadas com ou sem vazamentos.

Abstract

Oil and natural gas production in onshore and offshore fields characterized by multiphase flow in pipelines and pipelines. Every oil and natural gas production process is subject to the risk of accidents, causing high or irreparable damage to nature and economy. There is a need to identify leaks in an oil and gas transport pipeline, due to the increasing rigor of environmental standards and agencies. In this sense, this work aims to study the numerical simulation of multiphase, transient and nonisothermal flow in pipelines with coupled curved curves and leaks, used in the commercial software ANSYSCFX ® 15.0. Pressure, velocity and volumetric fraction distributions and pressure drop for singlephase (oil), twophase (oilwater) and threephase (oilwater and gas) flows analyzed were. The results indicate that the radius of curvature had greater in the following results the pressure field, the velocity field and the pressure drop. The type of flow had greater production in the evaluation of pressure drop and distribution of the volumetric fraction.