Desenvolvimento de uma metodologia para o dimensionamento de separadores horizontais gravitacionais de água, óleo e gás
The flow from oil wells is intrinsically multiphase, which makes it necessary, before its commercialization, the separation of each phase. One of the often-used alternatives for phase separation are the gravitational horizontal separators. After separation, the oil should have a controlled water con...
| Autor principal: | Dalduche, Tiago Henrique Leitão |
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| Formato: | Trabalho de Conclusão de Curso (Graduação) |
| Idioma: | Português |
| Publicado em: |
Universidade Tecnológica Federal do Paraná
2021
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| Assuntos: | |
| Acesso em linha: |
http://repositorio.utfpr.edu.br/jspui/handle/1/23956 |
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| Resumo: |
The flow from oil wells is intrinsically multiphase, which makes it necessary, before its commercialization, the separation of each phase. One of the often-used alternatives for phase separation are the gravitational horizontal separators. After separation, the oil should have a controlled water concentration to facilitate subsequent separation processes prior to commercializing. As of the separated water, which contains high concentrations of oil droplets, additional separators need to be employed prior to disposal to meet environmental requirements. However, an undesirable feature linked to gravitational separators is associated with their large geometric dimensions, which often becomes a critical factor for their installation in the small spaces of oil platforms. In this context, the present work will evaluate the possibility of improving a methodology in order to optimize the sizing of horizontal gravitational separators, based on the existing methodologies in the literature. Experiments were conducted for the validation of existing methodologies in a translucent horizontal separator with 287 mm diameter and 1000 mm length, in a closed circuit. The parameters taken were the droplet diameter distributions at separator’s outlet and inlet, followed by a statistical parameter to determine the experimental cutoff diameter, which in turn was compared to the cutoff diameters expected by the existing methodologies in the literature. The presence of a separation limit diameter was verified, where the equipment presented reading droplets in the order of 100 μm. From the comparison between the experimental data obtained and the existing methodologies, an effective separation length of 65% of the available separation length was proposed. As there was a very large dispersion in the results for low flow rates, the test grid was insufficient to validate the trend of the proposed methodology due to practical limitations. |
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