Freitas, Júlio Cézar de OliveiraCosta, Leticia Naara Silveira2021-10-232021-10-232021COSTA, Leticia Naara Silveira da. INFLUÊNCIA DA POLIURETANA NOS ASPECTOS REOLÓGICOS E FILTRAÇÃO ESTÁTICA EM PASTAS DE CIMENTO PARA MIGRAÇÃO DE GÁS. 2021. 39 f. TCC (Graduação) - Curso de Química do Petróleo, Universidade Federal do Rio Grande do Norte, Natal, 2021.https://repositorio.ufrn.br/handle/123456789/44693The evaluation of cement slurries for use in oil wells for their resistance to gas migration is realized by testing on laboratory scale simulators and/or by measuring individual slurry properties. The addition of polymers usually affects the rheological behavior of cement pastes and only if the rheological properties of the paste are well characterized. Thus, this work aims to study the influence of the addition of Polyurethane (PU), as an alternative additive, in cement paste systems to combat gas migration. Rheology and API filtrate tests were performed to evaluate the rheological and filtration parameters of cement pastes with the addition of PU, containing concentrations from 0 to 1.5% gpc, and filtrate controller ranging from 0 to 0.3 bwoc. The results showed that the formulations added with only PU had less efficiency, but associated with the filtrate controller, they significantly improve the fluid-loss control agents.Attribution-NoDerivs 3.0 Brazilhttp://creativecommons.org/licenses/by-nd/3.0/br/CimentaçãoMigração de GásPoliuretanaQuímica do PetróleobachelorThesis