Título: | ANALYSIS OF OPTIMIZATION ANALYTICAL MODELS BASED ON SPECIFIC ENERGY APPLIED TO EVAPORITE ROCKS | ||||||||||||||||||||||||||||||||||||
Autor: |
CARLA MASSIGNANI CARRAPATOSO |
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Colaborador(es): |
SERGIO AUGUSTO BARRETO DA FONTOURA - Orientador |
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Catalogação: | 08/AGO/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=17928&idi=1 [en] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/ETDs/consultas/conteudo.php?strSecao=resultado&nrSeq=17928&idi=2 |
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DOI: | https://doi.org/10.17771/PUCRio.acad.17928 | ||||||||||||||||||||||||||||||||||||
Resumo: | |||||||||||||||||||||||||||||||||||||
The oil industry has always invested in research in order to optimize drilling
operation. The aim is to develop technology to increase the rate of penetration and
reduce the non-productive time during drilling. The recent discovery of large oil
reserves located in very deep layers that are covered with thick salt layers has
increased the importance of studies associated with drilling optimization in
Brazilian offshore sub-salt oil fields. There are many models to predict rate of
penetration based on operational parameters, drill bit type and rock properties.
The specific mechanical energy is the parameter often used as reference to guide
the efficiency of the drilling operation as well as to identify what has to be
changed in order to improve the drilling. This dissertation analyses different
methods for drilling optimization based on the specific mechanical energy. These
methods are applied to a data set that consists of drilling parameters (weight-onbit,
torque, rate of penetration, rotation per minute) for 6 wells along the sections
of evaporites. Large-scale drilling experiments carried out at the laboratory were
also used. The study concludes that the ideal specific mechanical energy on most
operations is related to a fraction of the confined compressive strength of the rock.
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