Título: | CORRELATIONS TO ESTIMATE THE DAMAGE ZONE WIDTH OF GEOLOGICAL FAULTS USING NUMERICAL MODELING: CASE STUDY OF PRE-SALT CARBONATES, SANTOS BASIN | ||||||||||||
Autor: |
ALEXANDRE SCUSSEL ZANATTA |
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Colaborador(es): |
DEANE DE MESQUITA ROEHL - Orientador ROBERTO JUAN QUEVEDO QUISPE - Coorientador |
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Catalogação: | 11/ABR/2024 | Língua(s): | PORTUGUESE - BRAZIL |
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Tipo: | TEXT | Subtipo: | THESIS | ||||||||||
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/ETDs/consultas/conteudo.php?strSecao=resultado&nrSeq=66419&idi=1 [en] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/ETDs/consultas/conteudo.php?strSecao=resultado&nrSeq=66419&idi=2 |
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DOI: | https://doi.org/10.17771/PUCRio.acad.66419 | ||||||||||||
Resumo: | |||||||||||||
The characterization of damage zones surrounding geological faults is
important for the oil and gas industry, as the geological structures present can affect
both the fluid flow in reservoirs and the geomechanical behavior of fields. As an
initial approximation, the width of damage zones has been directly correlated with
fault throw. However, the dispersion of data collected in the field indicates that
other variables, besides fault throw, can also affect the width of the damage zone,
particularly in carbonate rocks. In this sense, the objective of this dissertation is to
evaluate the impact of geomechanical properties of carbonates on the prediction of
the thickness of the damage zone in geological faults in the Brazilian pre-salt fields.
Due to uncertainties in defining geomechanical properties, they were inferred from
empirical correlations that were established with porosity. Then, using numerical
modeling, a design of experiments was carried out, obtaining the width of the
damage zone from different combinations of geomechanical parameters. Next,
employing the response surface method, regression models were defined that
predict the width of the damage zone from fault throw and porosity of the evaluated
carbonate rocks. The results indicate that the proposed regression models allow for
the estimation of damage zone widths consistent with field observations and
therefore can be used for preliminary characterization of damage zones in
exploration processes in the oil and gas industry.
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