Often in heated pipeline projects in the shore approach area the pipeline is buried with the disturbed soil but a partial natural recovering inevitably takes place once the trench is open. This condition may not be enough to ensure the required pipeline soil support for its design life. This peculiar condition of shallow and insufficient soil support may lead to an upheaval buckling. Hence, this paper intends to develop a numerical model to simulate the thermo-mechanical buckling phenomenon of buried heated pipelines in shore approach areas. Furthermore, a sensibility analysis adopting geometrical, physical and operational data is carried out for a particular Petrobras project. The in situ geophysical survey, geotechnical and oceanographic information are also taken into account. The influence of the sediment transport after opening the trench and required backfilling with a heavier soil is also addressed. This paper focuses on the challenges for the design and installation group, due to the burial requirements, in order to find a safe solution for the burying process by trenching and backfilling known methods.
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ASME 2005 24th International Conference on Offshore Mechanics and Arctic Engineering
June 12–17, 2005
Halkidiki, Greece
Conference Sponsors:
- Ocean, Offshore and Arctic Engineering Division
ISBN:
0-7918-4197-9
PROCEEDINGS PAPER
Thermo-Mechanical Analysis of Buried Heated Pipelines in the Shore Approach Area Available to Purchase
Rafael Familiar Solano,
Rafael Familiar Solano
PETROBRAS, Rio de Janeiro, RJ, Brazil
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Murilo Augusto Vaz,
Murilo Augusto Vaz
UFRJ/COPPE, Rio de Janeiro, RJ, Brazil
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Vale´ria Souza Rego
Vale´ria Souza Rego
PETROBRAS, Rio de Janeiro, RJ, Brazil
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Rafael Familiar Solano
PETROBRAS, Rio de Janeiro, RJ, Brazil
Murilo Augusto Vaz
UFRJ/COPPE, Rio de Janeiro, RJ, Brazil
Vale´ria Souza Rego
PETROBRAS, Rio de Janeiro, RJ, Brazil
Paper No:
OMAE2005-67102, pp. 437-446; 10 pages
Published Online:
November 11, 2008
Citation
Solano, RF, Vaz, MA, & Rego, VS. "Thermo-Mechanical Analysis of Buried Heated Pipelines in the Shore Approach Area." Proceedings of the ASME 2005 24th International Conference on Offshore Mechanics and Arctic Engineering. 24th International Conference on Offshore Mechanics and Arctic Engineering: Volume 3. Halkidiki, Greece. June 12–17, 2005. pp. 437-446. ASME. https://doi.org/10.1115/OMAE2005-67102
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