Modelagem e simulação composicional do escoamento multifásico em tubulações com geração de modelos substitutos

• Ano de defesa: 2023
• Autor(a) principal: Carvalho, Gustavo Alves de
• Outros Autores: [e-mail]
• Orientador(a): Costa, André Luiz Hemerly , Nunes, Giovani Cavalcanti
• Banca de defesa: Souza , Jaime Neiva Miranda de , Lima, Eduardo Rocha de Almeida , Secchi, Argimiro Resende , Ribeiro, Gustavo Gondran
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade do Estado do Rio de Janeiro
• Programa de Pós-Graduação: Programa de Pós-Graduação em Engenharia Química
• Departamento: Centro de Tecnologia e Ciências::Instituto de Química
• País: Brasil
• Palavras-chave em Português: Escoamento multifásico; Petróleo; Equilíbrio de fases; Modelos substitutos; Produção de petróleo; Modelo composicional
• Palavras-chave em Inglês: Multiphase flow; Phase equilibrium; Surrogate models; Oil production; Compositional model
• Área do conhecimento CNPq: ENGENHARIAS::ENGENHARIA QUIMICA::OPERACOES INDUSTRIAIS E EQUIPAMENTOS PARA ENGENHARIA QUIMICA
• Link de acesso: http://www.bdtd.uerj.br/handle/1/19614

Fluid dynamic analysis in oil facilities is essential to develop projects, simulate scenarios, and evaluate these systems. In those cases, fluid flow usually consists of more than one phase, a mixture of liquid and gas with different flow patterns. The multiphase flow modeling is characterized by the conservative equations of mass, momentum, and energy, which will demand values for the thermodynamic properties of each phase to be solved. These properties are usually calculated with black-oil correlations or pre-calculated properties tables. However, a compositional approach can describe these properties better along the flow. This way, this work presents the model development and simulations of a steady-state two-phase flow in pipelines, in which the phase equilibrium is described using thermodynamic models that use the fluid composition, giving results compared to models in the literature. The adopted fluid dynamic model is based in the two fluid approach, which is recommended to model non coupled systems, like the stratified flow pattern. Surrogate models have been generated to allow further utilization of the results in optimization problems, as these models are more computationally efficient. The proposed model application is illustrated in two hypothetical cases that appear frequently in oil and gas industry, the first one consists of an offshore production system (reservoir, well, flowline and riser) and the second one consists of a natural gas pipeline with condensate formation. The developed models have shown coherent results with other models from the literature and the surrogate-model have been capable to predict results with accuracy.