Título: | NUMERICAL ANALYSIS OF FLUID MECHANICAL COUPLING IN POROUS MEDIA USING THE DISCRETE ELEMENT METHOD | ||||||||||||||||||||||||||||||||||||
Autor: |
RAQUEL QUADROS VELLOSO |
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Colaborador(es): |
EURIPEDES DO AMARAL VARGAS JUNIOR - Orientador |
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Catalogação: | 26/JAN/2011 | 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=16796&idi=1 [en] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/ETDs/consultas/conteudo.php?strSecao=resultado&nrSeq=16796&idi=2 |
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DOI: | https://doi.org/10.17771/PUCRio.acad.16796 | ||||||||||||||||||||||||||||||||||||
Resumo: | |||||||||||||||||||||||||||||||||||||
The present research was mainly motivated by petroleum geomechanics problems
such as solids production and formation damage. Solids production
is related to phenomena whereby solid particles are produced together with
fluids from reservoir rocks having little or no consolidation although it is reported
that those phenomena have already happened to more resistant materials.
Formation damage is the term used in order to identify permeability
reduction occurring for various processes and which reduce productivity and
injectivity of wells in oil and gas production systems. In the present work,
a numerical tool considering fluidmechanical coupling (one and two phase
flow) was developed for analyses in the microscale (pores and grains). The
DEM (Discrete Element Method) was used for the simulation of motion and
interaction of solid particles and the lattice Boltzmann method (LBM) for
the simulation of flow inside pores of the geological media. The main difference
between the developed tool and the ones developed in previous works
that couple DEM with LBM is the introduction of incompressible LBM as
suggested by (He e Luo, 1997), one that allows the application of pressure
gradients considerably larger than the conventional formulation which is important
for the simulation of solids production. The developed tool can be
viewed as a virtual laboratory for testing and verification of constitutive laws
which together with experimental data may improve the understanding of
basic phenomena involved in formation damage and solids production. The
numerical implementation was verified through comparisons with analytical
solutions and other results from the literature. Simulations related to
practical applications were carried out and discussed.
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