TRABALHOS DE FIM DE CURSO @PUC-Rio
| Título: | ANALYSIS OF THE INFLUENCE OF DRY-FRICTION MODELS ON THE TORSIONAL DYNAMICS OF A DRILL STRING WITH STICK-SLIP | ||||||||||||
| Autor(es): |
DANIEL CANTANHEDE ESTEVES ESCALHAO |
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| Colaborador(es): |
ROBERTA DE QUEIROZ LIMA - Orientador |
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| Catalogação: | 11/JUL/2022 | Língua(s): | PORTUGUESE - BRAZIL |
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| Tipo: | TEXT | Subtipo: | SENIOR PROJECT | ||||||||||
| Notas: |
[pt] Todos os dados constantes dos documentos são de inteira responsabilidade de seus autores. Os dados utilizados nas descrições dos documentos estão em conformidade com os sistemas da administração da PUC-Rio. [en] All data contained in the documents are the sole responsibility of the authors. The data used in the descriptions of the documents are in conformity with the systems of the administration of PUC-Rio. |
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| Referência(s): |
[pt] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/TFCs/consultas/conteudo.php?strSecao=resultado&nrSeq=59914@1 [en] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/TFCs/consultas/conteudo.php?strSecao=resultado&nrSeq=59914@2 |
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| DOI: | https://doi.org/10.17771/PUCRio.acad.59914 | ||||||||||||
| Resumo: | |||||||||||||
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Oil well drill string are slender structures subjected to different dynamic
actions in their operation. The objective of this work it to model the
torsional dynamics of a drill string, considering the action of a rotary
engine at the top of the column and dry-friction between the drill bit
and the soil. In this way, the top of the column has a constant speed
imposed by the motor and the base is subjected to a torque due to the
presence of dry-friction. Because of this friction, the resulting movement
of the column can be characterized by two qualitatively different modes,
stick and slip modes, with an abrupt transition. The column dynamics was
mathematically modeled using axis theory and the column was discretized
using the finite elements method. Matlab programs were developed for
numerical simulations. Different friction models were used to analyze their
influence on the dynamics of the system.
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