Título: | ANALYTICAL STUDY OF THE INJECTIVITY LOSS OF ROCKS | ||||||||||||
Autor: |
URSULA EL-AMME DE ALMEIDA |
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Colaborador(es): |
SERGIO AUGUSTO BARRETO DA FONTOURA - Orientador |
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Catalogação: | 29/OUT/2002 | 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=3117&idi=1 [en] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/ETDs/consultas/conteudo.php?strSecao=resultado&nrSeq=3117&idi=2 |
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DOI: | https://doi.org/10.17771/PUCRio.acad.3117 | ||||||||||||
Resumo: | |||||||||||||
This work deals with the impairment of rocks subjected to
the injection of water with solid particles in suspension.
The effect of the permeability reduction and consequent
loss in rock injectivity is analyzed by the interpretation
of core flow tests, previously reported, and simulated by
using a computational program developed for this research.
The program is based on the Pang and Sharmas model
(1994) for the prediction of injectivity decline, chosen
amongst a set of existing models, and contemplates the
process of impairment due the formation of an external
and/or an internal filter cake, where the concept of
transition time is introduced. The formulation also uses
two important parameters: lambda, defined as filtration
coefficient, and beta, damage factor, which can be
determined by test data or empirical correlations. A
new theory of Bredrikovetsky (2001) that suggests the
calculation of both parameters for pressure data is
used. With the objective to validate the model and the
program, a parametric study is presented whose information
can be used in the prediction of the behavior of the
injection wells.
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