PROJETOS

Desenvolver um compósito cimentício de cortiça com o objetivo de melhorar o desempenho térmico e mecânico em oleodutos para exploração petrolífera.

ENQUADRAMENTO

A maioria das empresas petrolíferas tem demonstrado interesse em explorar óleo e gás em águas profundas e ultraprofundas. Explorações deste tipo na costa do Brasil têm sido reconhecidas internacionalmente devido, não apenas às descobertas contínuas dos campos de petróleo offshore, mas também à experiência em tecnologia de águas profundas. Além dos problemas relacionados com a perfuração nos campos do pré-sal, a distâncias de mais de 300km da costa e águas com profundidade superior a 2,5km, colocam-se novos desafios nas operações de transporte do petróleo e gás para terra. Estes ambientes impõem que os oleodutos sejam dotados de adequado isolamento térmico, que garanta o escoamento e não comprometa a facilidade de operação e instalação.

PRINCIPAIS OBJETIVOS

Desenvolver e otimizar um novo compósito cimentício flexível, integrando grânulos de cortiça, que garanta um elevado desempenho estrutural e térmico dos oleodutos sanduíche para transporte de óleo/gás em águas profundas.

ATIVIDADES DO PROJETO

As atividades do projeto abrangem todo o processo de desenvolvimento desde a seleção de materiais e desenvolvimento do compósito, até ao comportamento estrutural e termodinâmico dos oleodutos. As propriedades termomecânicas do oleoduto e do compósito, bem como a durabilidade do compósito, serão analisadas experimentalmente, complementadas por simulações numéricas do comportamento estrutural e da transferência de calor através e ao longo do oleoduto. O projeto SubSeaPipe tem como objetivo desenvolver um material de base cimentícia integrando cortiça que possa oferecer uma solução otimizada para o oleoduto sanduíche que permita, de uma forma mais eficaz, escoar a produção de reservatórios em águas profundas e distantes da costa.

LISTA DE COMUNICAÇÕES

• Bhardwaj, U., Teixeira, A.P. and Guedes Soares, C. (2021), “Uncertainty in collapse strength prediction of sandwich pipelines”, Proceedings of the 40th International Conference on Ocean, Offshore and Arctic Engineering (OMAE2021), Virtual, Online.
• Bhardwaj, U., Teixeira, A.P. and Guedes Soares, C. (2021), “Burst failure and reliability assessment of X-100 to X-120 ultra-high strength pipes”, Proceedings of the 40th International Conference on Ocean, Offshore and Arctic Engineering (OMAE2021), Virtual, Online.
• Skerget, L.; Tadeu, A.; António, J. (2020), “Numerical simulation of heat transport in multilayered composite pipe”, BEM/MRM 42 – 42nd International Conference on Boundary Elements and other Mesh Reduction Methods.

LISTA DE PUBLICAÇÕES

• Bhardwaj, U., Teixeira, A.P. and Guedes Soares, C. (2023), “Uncertainty in estimation of partial safety factors for different steel-grade corroded pipelines”, Journal of Marine Science and Engineering, Vol. 11, 177.
• Wang, ZK. and Guedes Soares, C. (2022) “Theoretical investigation on the upheaval thermal buckling of a lined subsea pipeline”, Ocean Engineering, Vol. 261, 111843.
• Wang, ZK. and Guedes Soares, C. (2022) “A new buckle initiation concept based on the energy barrier of subsea pipelines laid on a sloping seabed”, Marine Structures, Vol. 82, 103155.
• Wang, ZK. and Guedes Soares, C. (2022) “Lateral buckling of subsea pipelines triggered by a sleeper with a nonlinear pipe-soil interaction model”, Journal of Marine Science and Engineering, Vol. 10, 757.
• Wang, ZK., Chen, B.Q. and Guedes Soares, C. (2022), “Analytical study on the upheaval thermal buckling of sandwich pipes”, Marine Structures, Vol. 85, 103245.
• Li, RX., Chen, B.Q. and Guedes Soares, C. (2022), “Effect of ovality length on collapse strength of imperfect sandwich pipes due to local buckling”, Journal of Maritime Science and Engineering, Vol. 10, 12.
• Chen, B.Q., Zhang, X. and Guedes Soares, C. (2022), “The effect of general and localized corrosions on the collapse pressure of subsea pipelines”, Ocean Engineering, Vol. 247, 110719.
• Chen, B.Q., Zhang, X. and Guedes Soares, C. (2022), “The effect of general and localized corrosions on the collapse pressure of subsea pipelines”, Ocean Engineering, Vol. 247, 110719.
• Chen, B.Q., Videiro, P.M. and Guedes Soares, C. (2022), “Opportunities and challenges to develop digital twins for subsea pipelines”, Journal of Maritime Science and Engineering, Vol. 10, 739.
• Bhardwaj, U., Teixeira, A.P. and Guedes Soares, C. (2022), “Uncertainty in collapse strength prediction of sandwich pipelines”, Journal of Offshore Mechanics and Arctic Engineering, Vol. 144, 041702.
• Bhardwaj, U., Teixeira, A.P. and Guedes Soares, C. (2022), “Probabilistic safety assessment of the burst strength of corroded pipelines of different steel grades with calibrated strength models”, Marine Structures, Vol. 86, 103310.
  
• Bhardwaj, U., Teixeira, A.P. and Guedes Soares, C. (2022), “Probabilistic collapse design and safety assessment of sandwich pipelines”, Journal of Marine Science and Engineering, Vol. 10, 1435.
• Bhardwaj, U., Teixeira, A.P. and Guedes Soares, C. (2022), “Failure assessment of corroded ultra-high strength pipelines under combined axial tensile loads and internal pressure. Ocean Engineering. 2022; 257 :111438.
• Bhardwaj, U., Teixeira, A.P. and Guedes Soares, C. (2022), “Bayesian framework for reliability prediction of subsea processing systems accounting for influencing factors uncertainty”, Reliability Engineering and System Safety, Vol. 218, 108143.
• Bhardwaj, U., Teixeira, A.P. and Guedes Soares, C. (2022), “Structural design and optimization of vertical subsea separator for deep water applications2, Trends in Maritime Technology and Engineering, Guedes Soares, C. & Santos T.A. (Eds.), Taylor and Francis, London, UK, pp. 41-52.
• Bhardwaj, U., Teixeira, A.P. and Guedes Soares, C. (2022), “Local buckling reliability assessment of corroded subsea pipelines under combined loads2, Developments in the Analysis and Design of Marine Structures, Amdahl, J. & Guedes Soares C. (Eds.), Taylor & Francis, London, UK, pp. 487-497.
• Wang, ZK. and Guedes Soares, C. (2021), “Upheaval thermal buckling of functionally graded subsea pipelines”, Applied Ocean Research, Vol. 116, 102881.
• Pacheco, M.R., Guedes Soares, C. and Riagusoff, I.I.T. (2021), “Strength analysis of corroded pipelines in subsea operation condition and heated product transport”, Developments in Maritime Technology and Engineering, Guedes Soares, C. & Santos T.A. (Eds.), Taylor and Francis, London, UK, Vol. 1, pp. 721-726.
• Li, RX. and Guedes Soares, C. (2021), “Numerical study on the effects of multiple initial defects on the collapse strength of pipelines under external pressure”, International Journal of Pressure Vessels and Piping, Vol. 194, 104484.
• Li, RX., Chen, B.Q. and Guedes Soares, C. (2021), “Design equation for the effect of ovality on the collapse strength of sandwich pipes”, Ocean Engineering, Vol. 235, 109367.
• Li, RX. and Guedes Soares, C. (2021), “Numerical study on the effects of initial deflection on ultimate strength of pipeline under external pressure”, Developments in Maritime Technology and Engineering, Guedes Soares, C. & Santos T.A. (Eds.), Taylor and Francis, London, UK, Vol. 1, pp. 705-712.
• Bhardwaj, U., Teixeira, A.P. and Guedes Soares, C. (2021), “Reliability assessment of corroded pipelines with different burst strength models”, Developments in Maritime Technology and Engineering, Guedes Soares, C. & Santos T.A. (Eds.), Taylor and Francis, London, UK, Vol. 1, pp. 687-696.
• Bhardwaj, U., Teixeira, A.P. and Guedes Soares, C. (2021), “Burst strength assessment of X100 to X120 ultra-high strength corroded pipes”, Ocean Engineering, Vol. 241, 110004.
• Skerget, L.; Tadeu, A.; António, J. (2020), “Numerical simulation of heat transport in multilayered composite pipe”, Engineering Analysis with Boundary Elements, Vol. 120, pp. 28-37.
• Bhardwaj, U., Teixeira, A.P. and Guedes Soares, C. (2020), “Reliability assessment of a subsea pipe-in-pipe system for major failure modes”, International Journal of Pressure Vessels and Piping”, Vol. 188, 104177.
• Bhardwaj, U., Teixeira, A.P. and Guedes Soares, C. (2020), “Uncertainty in reliability of thick high strength pipelines with corrosion defects subjected to internal pressure”, International Journal of Pressure Vessels and Piping, Vol. 188, 104170.
• Bhardwaj, U., Teixeira, A.P. and Guedes Soares, C. (2020), “Uncertainty quantification of burst pressure models of corroded pipelines”, International Journal of Pressure Vessels and Piping, Vol. 188, 104208.
• Zhang, X., Chen, B.Q. and Guedes Soares, C. (2020), “Effect of non-symmetrical corrosion imperfection on the collapse pressure of subsea pipelines”, Marine Structures, Vol. 73, 102806.