Made available in DSpace on 2014-12-17T14:06:56Z (GMT). No. of bitstreams: 1 EugenioOO_DISSERT.pdf: 4689753 bytes, checksum: 3bf8e997d1b94d1858f0a0c5652f05b0 (MD5) Previous issue date: 2010-11-19 / Pipelines for the transport of crude oil from the production wells to the collecting stations are named production lines . These pipes are subjected to chemical and electrochemical corrosion according to the environment and the type of petroleum transported. Some of these lines, depending upon the composition of the fluid produced, may leak within less than one year of operation due to internal corrosion. This work aims at the development of composite pipes with an external protecting layer of high density polyurethane for use in production lines of onshore oil wells, meeting operational requirements. The pipes were manufactured using glass fibers, epoxy resin, polyester resin, quartz sand and high density polyurethane. The pipes were produced by filament winding with the deposition of high density polyurethane on the external surface and threaded ends (API 15 HR/PM-VII). Three types of pipes were manufactured: glass/epoxy, glass/epoxy with an external polyurethane layer and glass/epoxy with an intermediate layer of glass fiber, polyester, sand and with an external polyurethane layer. The three samples were characterized by Scanning Electronic Microscopy (SEM) and for the determination of constituent content. In addition, the following tests were conducted: hydrostatic test, instant rupture, shorttime failure pressure, Gardner impact, transverse stiffness and axial tension. Field tests were conducted in Mossor? RN (BRAZIL), where 1,677 meters of piping were used. The tests results of the three types of pipes were compared in two events: after two months from manufacturing of the samples and after nine months of field application. The results indicate that the glass/epoxy pipes with an intermediate layer of fiber glass composite, polyester e sand and with an external layer of high density polyurethane showed superior properties as compared to the other two and met the requirements of pressure class, axial tensile strength, transverse stiffness, impact and environmental conditions, for onshore applications as production lines / As tubula??es para transporte de petr?leo dos po?os de produ??o at? a esta??o coletora s?o denominadas de linhas de surg?ncia . Essas tubula??es est?o sujeitas ? corros?o qu?mica e eletroqu?mica, de acordo com o ambiente e os tipos de petr?leo. Algumas dessas linhas, a depender da composi??o do petr?leo produzido falham, ?s vezes, com menos de um ano de opera??o, devido ? corros?o interna severa. Este trabalho objetiva o desenvolvimento de tubula??o em comp?sito revestida externamente com poliuretano de alta densidade, para aplica??o em linhas de surg?ncia de po?os de petr?leo onshore e que atenda ?s exig?ncias operacionais. Neste desenvolvimento foram empregados fibra de vidro, resina ep?xi, resina poli?ster, areia quartzosa e poliuretano (PU) de alta densidade. Os tubos foram produzidos pelos processos de enrolamento filamentar com deposi??o de PU na superf?cie externa e extremidades com rosca moldada (API 15 HR e PM-VII). Foram produzidas tr?s concep??es de tubos: vidro/ep?xi sem revestimento, vidro/ep?xi revestido com poliuretano de alta densidade e vidro/ep?xi coberto por um composto de fibra de vidro, poli?ster e areia, revestido externamente com poliuretano de alta densidade. Amostras das tr?s concep??es foram caracterizadas atrav?s da t?cnica de Microscopia Eletr?nica de Varredura (MEV), da determina??o do teor de vidro e resina, dos ensaios de rigidez e tra??o axial e dos testes hidrost?ticos, ruptura instant?nea, press?o de curta dura??o e impacto Gardner. Essa nova tecnologia foi testada no campo de produ??o em Mossor? RN, nos quais foram instalados 1.677 metros de tubos. Assim, os resultados dos ensaios e testes das tr?s concep??es de tubos foram comparados entre si em dois eventos: ap?s dois meses da fabrica??o das amostras e ap?s nove meses da aplica??o dos tubos em campo. Os dados indicaram que o tubo em comp?sito vidro/ep?xi, poli?ster e areia, revestido externamente com poliuretano de alta densidade , apresentou melhores resultados quando comparado aos outros dois, podendo ser usado na ind?stria de petr?leo em aplica??es onshore , como uma alternativa para a aplica??o em linhas de surg?ncia, atendendo ?s exig?ncias de classe de press?o, resist?ncia ? tra??o axial, rigidez, impacto e intemp?ries