Luiz Augusto da Cruz Meleiro

Scopus Publications

An alternative approach to monitoring the concentration of solids during the sedimentation process using pressure measurement
Juliana Mariano de Souza, Allan Barbosa Geoffroy Motta, Eduardo da Cunha Hora Paraíso, Luiz Augusto da Cruz Meleiro, Luís Américo Calçada, Cláudia Miriam Scheid
Chemical Engineering Science, 2025
Development of computational vision methodologies for monitoring cuttings in the drilling fluid treatment system
C. D. Grossi, Y. N. Hummel, E. A. Moura, C. M. Scheid, L. A. Calçada, L. A. C. Meleiro
Brazilian Journal of Chemical Engineering, 2024
Fuzzy-Based Control System of Drilling Fluids Density and Apparent Viscosity Simultaneously: An Alternative Strategy to Support Autonomous Drilling Operations
Thalles P. Mello, Moacyr N. Borges Filho, Rodrigo F. O. Borges, Rodrigo S. C. Ferraz, Alex T. Waldmann, Cláudia M. Scheid, Luiz A. C. Meleiro, Luís A. Calçada
SPE Journal, 2024
Summary Among all the systems that make up a drilling operation, the production and correction of drilling fluid can be considered the heart of the process. Among the main objectives of the drilling fluid are to cool the drill bit and maintain the pressure gradient inside the drilling well, which is done by controlling its density. Another important function is transporting the cuttings from the bottom to the surface and keeping them in suspension in case of stoppage, which directly depends on the viscosity of the drilling fluid. Density and viscosity must be constantly maintained within an operational window, and failures can lead to serious accidents, even the loss of the well. Currently, this control is done manually: An operator collects samples of the fluid and takes them for analysis in the laboratory and subsequently makes the necessary corrections by manually adding products to the fluid. To reduce process dead time, keep personnel on board, and increase operation safety, a control and monitoring system is necessary. Fuzzy logic was chosen because it can be combined with classical methods, is cheap to develop and implement, and can be customized in terms of natural language, capturing the knowledge acquired by operators from equipment operation, bench tests, etc. This work aimed to develop a novel real-time monitoring and fuzzy-based system for simultaneous control of the apparent viscosity and density of non-Newtonian fluids, dealing with the inevitable interactions between them in a pilot experimental unit. A pilot plant was built to evaluate the fuzzy system approach for modeling and controlling of density and apparent viscosity of drilling fluids. The pilot flow loop comprises a mixing tank, solids vibrating feeders, and a water-dosing pump. The unit was instrumented with online sensors to measure fluid density, temperature, flow rate, differential pressure, and viscosity. The apparent viscosity and density of the non-Newtonian fluid were controlled by manipulating the dosage of carboxymethylcellulose (CMC), barite, and water. The proposed methodology was compared to a classical proportional-integral-derivative (PID) controller in servo and regulatory scenarios for apparent viscosity and density. The results showed that the fuzzy controller dealt adequately with the effect of variable interactions, keeping both variables within their setpoint ranges, demonstrating the ability to control them individually despite their interactions. These results also showed that the fuzzy-based controller could easily be integrated into a diagnostic-predictive monitoring system to control fluid properties, accomplishing setpoint changes and rejecting undesirable disturbances presenting a maximum overshoot of 7.5% for apparent viscosity and 0.3% for density.
Modeling the impact of the temperature profile on the sedimentation process for shear thinning suspensions in the annulus of oil well
Allan Barbosa Geoffroy Motta, Juliana Mariano de Souza, Kamila de Sá Oliveira, Elessandre Alves de Souza, Luiz Augusto da Cruz Meleiro, Luís Américo Calçada, Cláudia Miriam Scheid
Powder Technology, 2024
Release of natural extracts from PVA and PVA-CMC hydrogel wound dressings: a power law swelling/delivery
Renata Nunes Oliveira, Luiz Augusto da Cruz Meleiro, Brid Quilty, Garrett Brian McGuinness
Frontiers in Bioengineering and Biotechnology, 2024
IntroductionPVA hydrogels present many characteristics of the ideal dressing, although without antimicrobial properties. The present work aims to study the physical, mechanical and release characteristics of hydrogel wound dressings loaded with either of two natural herbal products, sage extract and dragon's blood.MethodsFourier Transform Infrared Spectroscopy (FTIR), Differential Scanning Calorimetry (DSC) and tensile mechanical testing were used to investigate the structure and properties of the gels. Swelling and degradation tests were conducted according to ISO 10993-9. Release characteristics were studied using UV Spectrophotometry.ResultsPVA matrices incorporating sage extract or dragon's blood (DB) present hydrogen bonding between these components. PVA-CMC hydrogels containing sage present similar spectra to PVA-CMC alone, probably indicating low miscibility or interaction between the matrix and sage. The opposite is found for DB, which exhibits more pronounced interference with crystallinity than sage. DB and NaCMC negatively affect Young's modulus and failure strength. All samples appear to reach equilibrium swelling degree (ESD) in 24 h. The addition of DB and sage to PVA increases the gels' swelling capacity, indicating that the substances likely separate PVA chains. The inclusion of CMC contributes to high media uptake. The kinetics profile of media uptake for 4 days is described by a power-law model, which is correlated to the drug delivery mechanism.DiscussionA PVA-CMC gel incorporating 15% DB, the highest amount tested, shows the most favorable characteristics for flavonoid delivery, as well as flexibility and swelling capacity.
Real-time control and monitoring of drilling fluids density by fuzzy-based control system
A.S. Radich, S.C. Magalhães Filho, R.F.O. Borges, C.M. Scheid, L.A.C. Meleiro, L.A. Calçada
Geoenergy Science and Engineering, 2023
Analysis of the stability of oil-based drilling muds by electrical stability measurements as a function of oil-water ratio, weighting material and lubricant concentrations
R.F.O. Borges, R.S.V.A. De Souza, M.L.V. Vargas, C.M. Scheid, L.A. Calçada, L.A.C. Meleiro
Journal of Petroleum Science and Engineering, 2022
An experimental and theoretical approach on real-time control and monitoring of the apparent viscosity by fuzzy-based control
R.S.C. Ferraz, T.P. Mello, M.N. Borges Filho, R.F.O. Borges, S.C. Magalhães Filho, C.M. Scheid, L.A.C. Meleiro, L.A. Calçada
Journal of Petroleum Science and Engineering, 2022
Electrical conductivity measurements and the nonhomogeneous settling behavior of aqueous suspensions of barite
Robson Raposa Rocha, Bruno Francisco Oechsler, Cláudia Míriam Scheid, Luís Américo Calçada, Luiz Augusto Meleiro
Aiche Journal, 2022
Using electrical conductivity measurements to monitor the local concentration of solids indirectly in settling tests is a practice already explored in the literature. However, since suspended particles may comprise a mixture of solids, a new suspension preparation methodology and calibration procedure were proposed to eliminate the influence of soluble materials on conductivity measurements. This article investigates water‐barite suspensions of 10%, 15%, and 20% v/v in solids. Their settling dynamics resulted in particle Reynolds numbers and Peclet numbers always smaller than 0.0012 and larger than 2100, respectively. Particle agglomeration, multiple boundaries (layers of different maximum local concentrations), channeling (formation of flow paths or channels), and particulate stratification were some phenomena inferred from the results. Hence, this article illustrates that settling behaviors typically seen in solid–liquid mixtures of non‐Newtonian continuous phase can also occur in aqueous suspensions, indicating there are still considerable challenges to understanding the process of gravitational settling.
Optimization of culture medium and growth conditions of the plant growth-promoting bacterium Herbaspirillum seropedicae BR11417 for its use as an agricultural inoculant using response surface methodology (RSM)
Wagner Scheidt, Izadora Chauke Piovezan dos Santos Pedroza, Juliane Fontana, Luiz Augusto da Cruz Meleiro, Luis Henrique de Barros Soares, Veronica Massena Reis
Plant and Soil, 2020
Settling of weighting agents in non-Newtonian fluids to off-shore drilling wells: Modeling, parameter estimation and analysis of constitutive equations
Robson R. Rocha, Bruno F. Oechsler, Luiz A.C. Meleiro, Flávia M. Fagundes, Fabio O. Arouca, João J.R. Damasceno, Cláudia M. Scheid, Luís A. Calçada
Journal of Petroleum Science and Engineering, 2020
A Simplified Model Applied to the Barite Sag and Fluid Flow in Drilling Muds: Simulation and Experimental Results
José Messias Ribeiro, Felipe Moreira Eler, André Leibson Martins, Cláudia Miriam Scheid, Luís Américo Calçada, Luiz Augusto da Cruz Meleiro
Oil and Gas Science and Technology, 2017
Development of an ANN-based soft-sensor to estimate the apparent viscosity of water-based drilling fluids
Vitor Diego da Silva Bispo, Cláudia Miriam Scheid, Luís Américo Calçada, Luiz Augusto da Cruz Meleiro
Journal of Petroleum Science and Engineering, 2017
Designing fluid properties to minimize barite sag and its impact on annular pressure build up mitigation in producing offshore wells
Luis Americo Calcada, Claudia Miriam Scheid, Luiz Augusto da Cruz Meleiro, Bruno Francisco Oechsler, Flávia Marques Fagundes, Nara Brandão Costa Santos, Fábio de Oliveira Arouca, João Jorge Ribeiro Damasceno, Elessandre Souza, Alex Tadeu Waldmann, Andre Leibsohn Martins
Otc Brasil 2017, 2017
Yield of Soybean Protein Isolate from Defatted Soybean Flakes Treated in an Industrial Plant and in Laboratory: Experiments and Modeling
Michel Brasil, Luiz Augusto da Cruz Meleiro, Cristina Benincá, Everton Fernando Zanoelo
Journal of Food Process Engineering, 2016
Ethanol dehydration in packed distillation column using glycerol as entrainer: Experiments and hetp evaluation
W. L. R. Souza, C. S. Silva, L. A. C. Meleiro, M. F. Mendes
Brazilian Journal of Chemical Engineering, 2016
Barite Sag and Its Impact on Annular Pressure Build Up Mitigation in Producing Offshore Wells
L. A. Calçada, C. M. Scheid, L. A. Meleiro, J. M. Ribeiro, G. V. Seufitelli, S. V. Peliano, H.F.L. Santos, E. A. Souza, V. Monteiro, A. L. Martins
SPE Annual Technical Conference Proceedings, 2016
Estimation of expanded uncertainty associated to analysis of reducing sugars by Lane-Eynon method
Boletim Centro De Pesquisa De Processamento De Alimentos, 2014
Vapor-liquid equilibrium of the (water + ethanol + glycerol) system: Experimental and modelling data at normal pressure
Wagner L.R. Souza, Camila S. Silva, Luiz A.C. Meleiro, Marisa F. Mendes
Journal of Chemical Thermodynamics, 2013
Soft-sensor model design for control of a virtual conveyor-belt dryer of mate leaves (Ilex paraguariensis)
Suellen Jensen, Luiz Augusto da Cruz Meleiro, Éverton Fernando Zanoelo
Biosystems Engineering, 2011
Constructive learning neural network applied to identification and control of a fuel-ethanol fermentation process
Luiz Augusto da Cruz Meleiro, Fernando José Von Zuben, Rubens Maciel Filho
Engineering Applications of Artificial Intelligence, 2009
ANN-based soft-sensor for real-time process monitoring and control of an industrial polymerization process
J.C.B. Gonzaga, L.A.C Meleiro, C. Kiang, R. Maciel Filho
Computers and Chemical Engineering, 2009
Dynamic modeling and feedback control for conveyors-belt dryers of mate leaves
E.F. Zanoelo, A. Abitante, L.A.C. Meleiro
Journal of Food Engineering, 2008
A dynamic optimization procedure for non-catalytic nitric oxide reduction in waste incineration plants
Everton F. Zanoelo, Luiz A.C. Meleiro
Chemical Engineering Science, 2007
Efficiency evaluation for stationary phosphoric acid fuel cell
Rafael H. Camparin, Luiz A. C. Meleiro, Regina M. M. Jorge, Mauricio P. Cantão, Patricio R. Impinnisi
Quimica Nova, 2007
Application of hierarchical neural fuzzy models to modeling and control of a bioprocess
L. A. C. Meleiro, R. J. G. B. Campello, R. Maciel Filho, W. C. Amaral
Applied Artificial Intelligence, 2006
Non-linear multivariable predictive control of an alcoholic fermentation process using functional link networks
Luiz Augusto da Cruz Meleiro, Aline Carvalho da Costa, Rubens Maciel Filho
Brazilian Archives of Biology and Technology, 2005
Control of a bioprocess using orthonormal basis function fuzzy models
R.J.G.B. Campello, L.A.C. Meleiro, W.C. Amaral
IEEE International Conference on Fuzzy Systems, 2004
Constructive Neural Network in Model-Based Control of a Biotechnological Process
Proceedings of the International Joint Conference on Neural Networks, 2003
Hierarchical fuzzy models within the framework of orthonormal basis functions and their application to bioprocess control
R.J.G.B. Campello, F.J. Von Zuben, W.C. Amaral, L.A.C. Meleiro, R. Maciel Filho
Chemical Engineering Science, 2003
Non-linear predictive control of an extractive alcoholic fermentation process
A.C. Costa, L.A.C. Meleiro, R. Maciel Filho
Process Biochemistry, 2002
Identification of a multivariate fermentation process using constructive learning
L.A.C. Meleiro, R.J.G.B. Campello, R.M. Filho, F.J. Von Zuben
Proceedings Brazilian Symposium on Neural Networks Sbrn, 2002
A novel adaptive multivariable DMC controller. Application to an industrial reactor
E.C. Dechechi, L.A.C. Meleiro, R. Maciel Filho
Computer Aided Chemical Engineering, 2001
A complete model for oxidation air-lift reactors
E. Camarasa, L.A.C. Meleiro, E. Carvalho, A. Domingues, R. Maciel Filho, G. Wild, S. Poncin, N. Midoux, J. Bouillard
Computers and Chemical Engineering, 2001
A hybrid mathematical model for a three-phase industrial hydrogenation reactor
P.L. Santana, E.C. Vasco de Toledo, L.A.C. Meleiro, R. Scheffer, B.B. Freitas, M.R.W. Maciel, R. Maciel Filho
Computer Aided Chemical Engineering, 2001
Development of a complete model for an air-lift reactor
E Camarasa, E Carvalho, L.A.C Meleiro, R Maciel Filho, A Domingues, G Wild, S Poncin, N Midoux, J Bouillard
Chemical Engineering Science, 2001
A hydrodynamic model for air-lift reactors
E. Camarasa, E. Carvalho, L.A.C. Meleiro, R. Maciel Filho, A. Domingues, G. Wild, S. Poncin, N. Midoux, J. Bouillard
Chemical Engineering and Processing, 2001
A self-tuning adaptive control applied to an industrial large scale ethanol production
L.A.C Meleiro, R.Maciel Finho
Computers and Chemical Engineering, 2000
State and parameter estimation based on a nonlinear filter applied to an industrial process control of ethanol production
L.A.C. Meleiro, R. Maciel Filho
Brazilian Journal of Chemical Engineering, 2000
Development of a hydrodynamic model for air-lift reactors
E. Carvalho, E. Camarasa, L.A.C. Meleiro, R. Maciel Filho, A. Domingues, Ch. Vial, G. Wild, S. Poncin, N. Midoux, J. Bouillard
Brazilian Journal of Chemical Engineering, 2000

Luiz Augusto da Cruz Meleiro

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Scopus Publications