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Numerical Simulation of a Pipeline Installation Procedure at the Negro River

[+] Author Affiliations
Danilo Machado Lawinscky da Silva, Fabrício Nogueira Corrêa, Breno Pinheiro Jacob

COPPE/UFRJ, Rio de Janeiro, RJ, Brazil

Fernando Gomes da Silva Torres, Antonio Roberto de Medeiros

PETROBRAS, Rio de Janeiro, RJ, Brazil

Paper No. OMAE2008-57486, pp. 429-436; 8 pages
doi:10.1115/OMAE2008-57486
From:
  • ASME 2008 27th International Conference on Offshore Mechanics and Arctic Engineering
  • Volume 3: Pipeline and Riser Technology; Ocean Space Utilization
  • Estoril, Portugal, June 15–20, 2008
  • Conference Sponsors: Ocean, Offshore and Arctic Engineering Division
  • ISBN: 978-0-7918-4820-3 | eISBN: 0-7918-3821-8
  • Copyright © 2008 by ASME

abstract

The installation of pipelines is among the most challenging offshore operations. Conventional offshore pipeline installation operations in Brazil have been performed in an S-Lay procedure employing the BGL-1 barge, owned by Petrobras. The BGL-1 is a second generation lay barge and performs installation operations by moving forward using its own mooring lines. The objective of this work is to present the numerical simulation of a pipeline installation operation performed at a particular scenario, Negro river in the Amazon forest. The high current velocity, very irregular bathymetry and heterogeneous soil make this procedure a real challenge. The numerical simulations employ the SITUA-Prosim computational tool, which is able to incorporate the correct definition of the bottom from bathymetric curves. The two crucial points in the performed analyses are: (a) first, to verify if it is possible to move the barge using its own mooring lines in such environmental condition and (b) second, to analyze the pipeline behavior in such scenario.

Copyright © 2008 by ASME

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