Título: | DEVELOPMENT OF ARTIFICIAL INTELLIGENCE MODELS APPLIED TO THE FLOW ASSURANCE PROBLEMS IN THE OIL AND GAS INDUSTRY | ||||||||||||
Autor: |
BRUNO XAVIER FERREIRA |
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Colaborador(es): |
BRUNNO FERREIRA DOS SANTOS - Orientador VINICIUS TADEU KARTNALLER MONTALVAO - Coorientador |
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Catalogação: | 10/NOV/2022 | Língua(s): | ENGLISH - UNITED STATES |
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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=61188&idi=1 [en] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/ETDs/consultas/conteudo.php?strSecao=resultado&nrSeq=61188&idi=2 |
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DOI: | https://doi.org/10.17771/PUCRio.acad.61188 | ||||||||||||
Resumo: | |||||||||||||
A significant concern during oil and gas production is flow assurance to
avoid loss of time and money. Due to production conditions changes (such as
pressure and temperature), especially in the Brazilian pre-salt region, the solubility
of the components of the crude oil (oil-gas-water) can decrease, resulting in the
formation of deposits. The fouling is usually caused by wax, gas hydrate, and
inorganic salt (scale). In this work, models were developed using Machine
Learning strategies for scale formation monitoring and measuring process
parameters associated with remediation of obstruction from other sources. First,
models for the calcium carbonate scaling formation process in the presence of
monoethylene glycol (typical gas hydrate inhibitor) were created using
feedforward neural network architecture to predict the differential pressure (deltaP)
one and five steps ahead, obtaining an R2
higher than 92.9 percent for the training and
test group for both the prediction horizon. The second approach explored was the
development of models for determining the pH in atmospheric and pressurized
systems (up to 6.0 MPa) using image analysis. These models could be applied to
control and monitor the Nitrogen Generation System, which can be used for
different flow assurance problems, and its kinetics strongly depend on the system s
pH value. This step initially created classification models for the system pH (2, 3,
4, 5, 6, 7, 8, 9, 10) using the Convolution Neural Networks (CNN), Support Vector
Machine, and decision tree architectures. Also, CNN models were built to predict
the pH in the range of 2-10.
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