Oil Pipelines
Mostrando 13-24 de 57 artigos, teses e dissertações.
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13. MONITORING FLEXIBLE RISERS WITH OPTICAL FIBER SENSORS / MONITORAMENTO DE RISERS FLEXÍVEIS COM SENSORES A FIBRA ÓPTICA
The interest in structural health monitoring of flexible risers has grown significantly in recent years. For ducts that are already reaching their design life, monitoring systems can provide early warnings of potential failures and also assist the operator in scheduling downtime. Different techniques are being tested by operators of flexible pipes such as au
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 07/04/2011
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14. Estudo de viabilidade do sistema de ancoragem de uma unidade flutuante de produção e armazenamento \"FPSO\" acoplada a um sistema de completação seca \"TLWP\". / Mooring system feasibility study of a floating production and storage unit \"FPSO\" coupled to a dry tree system \"TLWP\".
The oil and gas production in Brazilian fields are commonly found in deep water and situated far away from the coast, reaching distances of more than 100 km as, for example, in the Campos Basin or Santos Basin. Due to the heavy oil and lack of pipeline infrastructure found in these fields, not only subsea equipments that must support high pressure but also l
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/03/2011
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15. RESTARTABILITY OF VISCOPLASTIC MATERIALS IN PIPES / REINÍCIO DE ESCOAMENTO DE MATERIAIS VISCOPLÁSTICOS EM UM TUBO
On of the main problems in the operation of subsea pipelines that convey paraffin oils is the flow startup after long stoppages. Along the path from the reservoir to the platform, the oil experiences significant heat losses, especially to the low-temperature water at the sea bottom. When there is no flow, the oil may reach very low temperatures. Cooling indu
Publicado em: 2011
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16. AN ANALYSIS OF THE DROP BREAKUP PROCESS IN AN OIL IN WATER EMULSION FLOWING TETWEEN PARALLEL DISKS / ANÁLISE DO PROCESSO DE QUEBRA DE GOTAS DE UMA EMULSÃO ÓLEO-ÁGUA NO ESCOAMENTO ENTRE DISCOS PARALELOS
Oil production is usually associated with the production of water, which may be found as a continuous phase or as a dispersed phase, in emulsions. Emulsions may be found in almost all the production stages: in reservoirs, production wells, production facilities, pipelines, in processing and in storage. The Electric Submersible Pump (ESP) is one of the method
Publicado em: 2010
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17. Desenvolvimento de um sistema computacional para geração automática de mapas de vulnerabilidade como ferramenta de auxílio às ações de prevenção ao derramamento de óleo em áreas costeiras
The northern portion of the Rio Grande do Norte State is characterized by intense coastal dynamics affecting areas with ecosystems of moderate to high environmental sensitivity. In this region are installed the main socioeconomic activities of RN State: salt industry, shrimp farm, fruit industry and oil industry. The oil industry suffers the effects of coast
Publicado em: 2010
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18. Proposta de algoritmo para detecção de vazamentos em oleodutos utilizando análise freqüencial de sinais de pressão
Pipeline leak detection is a matter of great interest for companies who transport petroleum and its derivatives, in face of rising exigencies of environmental policies in industrialized and industrializing countries. However, existing technologies are not yet fully consolidated and many studies have been accomplished in order to achieve better levels of sens
Publicado em: 2009
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19. MODELAGEM TRIDIMENSIONAL DE GOLFADA UNITÁRIA EM TUBULAÇÃO HORIZONTAL COM MODELO VOF (VOLUME OF FLUID) / THREE DIMENSIONAL MODELING OF A SINGLE UNIT SLUG IN A HORIZONTAL PIPELINE WITH THE VOF MODEL
Pipeline and equipment multiphase flow modeling in oil industry has become a crucial task due to the constant increasing fossil fuel demand and latest oil discovers in Brazil. Among all possible flow configurations that multiphase flow can take, the slug flow regime plays an important role due to its intermittent characteristics and its strong pressure gradi
Publicado em: 2009
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20. Avaliação da remoção de sulfeto de hidrogênio do gás natural em uma coluna de absorção
Natural gas, although basically composed by light hydrocarbons, also presents in its composition gaseous contaminants such as CO2 (carbon dioxide) and H2S (hydrogen sulfide). Hydrogen sulfide, which commonly occurs in oil and gas exploration and production activities, besides being among the gases that are responsible by the acid rain and greenhouse effect,
Publicado em: 2009
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21. Desenvolvimento e caracterização de nanocompósito de resina epóxi com nanopartículas de sílica para revestimento de dutos para transporte de petróleo
The use of polymer based coatings is a promising approach to reduce the corrosion problem in carbon steel pipes used for the transport of oil and gas in the oil industry. However, conventional polymer coatings offer limited properties, which often cannot meet design requirements for this type of application, particularly in regard to use temperature and wear
Publicado em: 2009
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22. Experimental study of the heat transfer in the intermittent horizontal two-phase flow pattern / Estudo experimental da transferencia de calor no escoamento bifasico intermitente horizontal
The main objective of the present work is the experimental measurement of the two-phase heat transfer coefficient in the intermittent horizontal gas-liquid flow pattern. This flow pattern is very common in oil production pipelines. In order to reach this objective, an experimental apparatus was built, consisting of a test section fed with an air-water mixtur
Publicado em: 2009
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23. Análise química de produtos de incrustação em dutos de petróleo por espectometria de fluorescência de raios X
The quantitative chemical characterization of the inorganic fraction of scale products is very relevant in studying, monitoring and controlling corrosive processes of oil pipelines. The X-ray fluorescence spectrometry (XRF) is a very versatile analytical technique, which can be used in quantitative analysis in solid samples at low concentrations of the chemi
Publicado em: 2008
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24. Modelagem matemÃtica e simulaÃÃo computacional do escoamento de petrÃleo parafÃnico em dutos circulares em regime laminar
The Deposition of paraffin is a serious problem in the production and transportation of heavy oil, causing a large increase in the costs of these operations. At the Transporting of paraffinic oil through pipelines subjected to low temperatures environmental, heat will be lost through the walls of the duct and the process of formation and deposition of paraff
Publicado em: 2008