Petroleum Flow
Mostrando 1-12 de 103 artigos, teses e dissertações.
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1. Recent Developments on the Elucidation of Colloidal Aspects of Asphaltenes and Their Relevance to Oilfield Problems
Asphaltenes constitute the heavy petroleum fraction responsible for deposition events that may lead to reduced oil production, therefore of great interest for flow assurance. These molecules self-assemble in solutions leading to formation of aggregates that eventually grow towards precipitation and blockages in reservoirs and pipelines. Based on the Yen-Mull
J. Braz. Chem. Soc.. Publicado em: 2020-02
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2. Corrosion-cavitation-erosion: surface morphology study of a carbon steel in a multiphasic saline bath
ABSTRACT During the production of petroleum and gas, the equipments employed for this activity are subjected to synergetic wear mechanisms, such as corrosion, corrosion-cavitation and corrosion-cavitation-erosion. Laboratory experiments has been performed to reproduce some of these mechanisms, however, sometimes the tests is not capable to recreate the compl
Matéria (Rio J.). Publicado em: 20/05/2019
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3. A new tricyclic abietane diterpenoid from Salvia chloroleuca and evaluation of cytotoxic and apoptotic activities
Abstract In this study, sahandone (1) and a new diterpenoid named sahandol II (2) were isolated from the roots of Salvia chloroleuca Rech. f. & Aellen, Lamiaceae. The absolute configurations of compounds 1 and 2 were assigned by comparison of experimental electronic circular dichroism spectra and comparing with published data. Cytotoxic and apoptotic evaluat
Rev. bras. farmacogn.. Publicado em: 2019-02
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4. Effects of direct and alternating current on the treatment of oily water in an electroflocculation process
In the direct current mode (DC), widely used in electroflocculation (EC), the formation of an impermeable oxide layer on the cathode causes the declining of the efficiency of this process. This disadvantage has been reduced by adopting alternating current (AC). In this study, the effects of AC and DC on operational parameters such as the removal of oils and
Braz. J. Chem. Eng.. Publicado em: 2014-09
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5. Hydrodynamics and oxygen mass transfer characteristics of petroleum based micro-emulsions in a packed bed split-cylinder airlift reactor
The effects of aeration velocity and liquid properties on the pertinent hydrodynamic and mass transfer parameters in a split-cylinder airlift reactor (with and without packing) were examined. Four different oil-in-water micro-emulsion systems containing kerosene, heavy naphtha, light naphtha and diesel as the oil at the concentration of 7% (v/v) were used in
Braz. J. Chem. Eng.. Publicado em: 2013-09
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6. Representação de mistura de petróleos com abordagem composicional / Representation of petroleum mixture with composicional approach
In recent years, with the increasing complexity of production projects requires that the numerical flow simulators are able to simulate new situations and production scenarios. In the case of convergence points where two or more fluids with different characterizations are mixed and represented by a compositional approach, the numerical representation it beco
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 02/08/2012
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7. Simulation of multiple reservoirs sharing constrained surface facilities using integrated production modelling / Simulação de múltiplos reservatórios em cenário com restrição de superfície utilizando modelagem integrada de produção
The selection of production strategies for petroleum field development is an important task. The specific case in which there are constrained surface facilities, the allocation of production and injection well rates is one more item to be optimized. When the problem involves several segregated reservoir units, each of which characterized by its own geologica
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 09/05/2012
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8. ESTUDO EXPERIMENTAL DA COMBUSTÃO DO GLP E GLICEROL RESIDUAL DERIVADO DA PRODUÇÃO DE BIODIESEL EM MEIOS POROSOS RADIANTE / EXPERIMENTAL STUDY OF LPG COMBUSTION OF GLYCEROL AND RESIDUAL DERIVED FROM BIODIESEL PRODUCTION IN RADIANT POROUS MEDIA
The increasing production of biodiesel has caused increased production of residue glycerol. The large amount of glycerin (our glycerol) in the market causes a surplus unusable commercially and industrially, which should give a correct destination. At this point, the porous combustion is characterized by burning within an inert medium, to the pollutants reduc
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 04/05/2012
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9. Injeção contínua e alternada de água e de polímeros para a recuperação de petróleo / Continuous and alternate injection of water and polymer for enhanced oil recovery
O desenvolvimento de métodos de recuperação é extremamente importante para a explotação de petróleo e a escolha entre diferentes métodos pode representar grande diferença na análise de oportunidades e no desenvolvimento dos campos. No método convencional por injeção de água objetiva-se a manutenção de pressão do reservatório e a produção
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 04/05/2012
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10. Electrochemical corrosion behavior of X52 and X60 steels in carbon dioxide containing saltwater solution
X52 and X60 high strength low alloy (HSLA) steels are widely used in the construction of petroleum pipelines. This paper discusses the corrosion resistance of X52 and X60 steels in CO2 containing saltwater at pH 4.4 and 50 ºC. A circulating flow loop system inside an autoclave was used for conducting the experimental work. The rotating impeller speed was 20
Mat. Res.. Publicado em: 04/12/2012
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11. Extraction, fatty acid profile and antioxidant activity of sesame extract (Sesamum Indicum L.)
This article carried out the extraction of sesame oil by using three extraction techniques: supercritical fluid extraction (SFE), Soxhlet and sequential extraction. The SFE was performed using supercritical carbon dioxide (SC-CO2) as solvent and ethanol as cosolvent. Tests were performed at 20 MPa, 35ºC and a flow rate of 2.5 g CO2/min with a total extracti
Brazilian Journal of Chemical Engineering. Publicado em: 2012-06
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12. Numerical prediction of bed-load and surface deformation on a granular bed sheared by a turbulent boundary-layer
The entrainment of solid particles by a fluid flow is frequently found in nature and in industry. A better knowledge of this is of importance to understand the physical nature of the phenomenon and to improve industrial processes. Bed-load occurs if the shear stresses exerted by the fluid on the granular bed are bounded to some limits: a mobile granular laye
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2012-03