Estudo numérico da movimentação da válvula de pé do sistema de bombeio mecânico com hastes

• Ano de defesa: 2014
• Autor(a) principal: Nico Filho, Gelson Heraldo
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal do Espírito Santo; BR; Mestrado em Energia; UFES; Programa de Pós-Graduação em Energia
• Palavras-chave em Português: Artificial lift; Sucker rod pump; Standing valve; Elevação artificial; Bombeio mecânico; Válvula de pé; CFD; Bomba de fundo de poço; Conjunto sede esfera; Bombas de água; Válvulas; Poços artesianos; Engenharia/Tecnologia/Gestão; 620.9
• Link de acesso: http://repositorio.ufes.br/handle/10/8468

The downhole pump of artificial lift method sucker rod pumping is a component that has the highest number of failures when working with heavy oils, due to this fact, this work employs a numerical analysis of the fluid inside this equipment. The analysis focused primarily understanding the behavior of the standing valve, one of the most important components of the pump, and its influence on the flow inside the pump. The analysis parameters are fill rate of the shirt, Pressure Drop, difficulties in closing and predict the occurrence of pump off. The study uses a typical pump system geometry, which was built using Inventor ® 3D CAD the real 3D geometric conditions. The Ansys Fluent version 14.5 software was used to solve the coupled equation system of fluid flow and motion of the standing valve, considered rigid. The final computational model allowed to judge if the type of bottom pump chosen is adequate and predict the occurrence of pump off, in order to achieve a longer service life of the downhole pump and evaluate the best performance upon various operating conditions. As a final product, was obtained a tool for the analysis of standing valves pumps background in order to avoid premature failure.