The Experts below are selected from a list of 309 Experts worldwide ranked by ideXlab platform
Antonio Roberto De Medeiros - One of the best experts on this subject based on the ideXlab platform.
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Numerical Simulation of the ‘Floating Spiral’ Pipeline Installation Procedure: First Stage, Spiral Assembly
2008 7th International Pipeline Conference Volume 4, 2008Co-Authors: Danilo Machado Lawinscky Da Silva, Fernando Gomes Da Silva Torres, Breno Pinheiro Jacob, Mauro Henrique Alves De Lima, Carl Horst Albrecht, Antonio Roberto De MedeirosAbstract:The underlying concept for the Floating Spiral Pipeline Installation method is to wind the Pipeline into a huge floating spiral, and then tow this assembly to the Installation site, where the spiral is then unwound and lowered to the seabed in a single operation. In this method the pipes are fabricated on shore, which allows for optimal control of costs and quality in Pipeline manufacturing. The first stage of the Installation process by this method consists in setting the Pipeline afloat and winding it elastically to form a large flat spiral, which is then ready to be towed to the Installation site by standard tugboats. The objective of this work is to present results of studies for a long Pipeline length at this first stage of the Floating Spiral method. The focus here is the process of moving the Pipeline around a fixed structure to wind it and form the floating spiral. Problems related to modeling of contact between Pipeline and its guides at the first spiral cycle, as well as contact between further Pipeline cycles, are rigorously analyzed. Several numerical simulations are performed; the results are presented and discussed. Other stages of this Installation method have also been studied, and are presented in a companion paper [1].Copyright © 2008 by ASME
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Numerical Simulation of a Pipeline Installation Procedure at the Negro River
Volume 3: Pipeline and Riser Technology; Ocean Space Utilization, 2008Co-Authors: Danilo Machado Lawinscky Da Silva, Fernando Gomes Da Silva Torres, Fabrício Nogueira Corrêa, Breno Pinheiro Jacob, Antonio Roberto De MedeirosAbstract: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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numerical simulation of the floating spiral Pipeline Installation procedure second stage spiral transportation behavior under waves
2008 7th International Pipeline Conference Volume 4, 2008Co-Authors: Bruno Martins Jacovazzo, Fernando Gomes Da Silva Torres, Fabrício Nogueira Corrêa, Breno Pinheiro Jacob, Carl Horst Albrecht, Antonio Roberto De MedeirosAbstract:The Floating Spiral Pipeline Installation method consists basically in winding the Pipeline into a huge floating spiral, and towing this assembly to the Installation site, where the spiral is then unwound and lowered to the seabed. In this method the Pipeline is fabricated onshore, as the spiral is created, under well controlled conditions and relatively relaxed time constraints. Therefore the welds can be better inspected, which allows for optimal control of quality in Pipeline manufacturing. The first stage of the Installation process by this method consists in setting the Pipeline afloat and winding it elastically to form a large flat spiral. This stage is studied in a companion paper [1], to be also presented at IPC2008. The second stage consists in towing the floating spiral Pipeline employing standard tugboats before laying it at the Installation site. The objective of this work is, therefore, to present results of parametric studies for a large length Pipeline at this second stage of the Floating Spiral method. The focus now is in the Pipeline behavior under wave environmental conditions during transportation. Several numerical simulations are performed and the results are discussed and compared.© 2008 ASME
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numerical simulation of offshore Pipeline Installation by lateral deflection procedure
ASME 2007 26th International Conference on Offshore Mechanics and Arctic Engineering, 2007Co-Authors: Danilo Machado Lawinscky Da Silva, Rodrigo De Almeida Bahiense, Breno Pinheriro Jacob, Fernando Gomes Da Silva Torres, Antonio Roberto De Medeiros, Marcos Nadalin Vaz Da CostaAbstract:Conventional offshore Pipeline Installation operations in Brazil have been performed in an S-Lay procedure employing the BGL-1 barge, owned by Petrobras. However, this procedure has some limits, and may not be feasible in some particular scenarios. Therefore, the objective of this work is to present the numerical simulation of an alternative Pipeline Installation procedure. This procedure basically consists of performing the Pipeline assembly on shore, and deflecting it to the sea using a tug boat. The numerical simulations employ the SITUA-Prosim computational tool, which is able to incorporate the correct definition of the seabed and shore from bathymetric curves. An actual Pipeline Installation by this lateral deflection procedure is analyzed and discussed. The characterization of the procedure passes through the determination of the better velocity and direction of the tug boat in order to minimize the efforts on the Pipeline (especially due to the curvatures).Copyright © 2007 by ASME
Bruno Martins Jacovazzo - One of the best experts on this subject based on the ideXlab platform.
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numerical simulation of the floating spiral Pipeline Installation procedure second stage spiral transportation behavior under waves
2008 7th International Pipeline Conference Volume 4, 2008Co-Authors: Bruno Martins Jacovazzo, Fernando Gomes Da Silva Torres, Fabrício Nogueira Corrêa, Breno Pinheiro Jacob, Carl Horst Albrecht, Antonio Roberto De MedeirosAbstract:The Floating Spiral Pipeline Installation method consists basically in winding the Pipeline into a huge floating spiral, and towing this assembly to the Installation site, where the spiral is then unwound and lowered to the seabed. In this method the Pipeline is fabricated onshore, as the spiral is created, under well controlled conditions and relatively relaxed time constraints. Therefore the welds can be better inspected, which allows for optimal control of quality in Pipeline manufacturing. The first stage of the Installation process by this method consists in setting the Pipeline afloat and winding it elastically to form a large flat spiral. This stage is studied in a companion paper [1], to be also presented at IPC2008. The second stage consists in towing the floating spiral Pipeline employing standard tugboats before laying it at the Installation site. The objective of this work is, therefore, to present results of parametric studies for a large length Pipeline at this second stage of the Floating Spiral method. The focus now is in the Pipeline behavior under wave environmental conditions during transportation. Several numerical simulations are performed and the results are discussed and compared.© 2008 ASME
Breno Pinheiro Jacob - One of the best experts on this subject based on the ideXlab platform.
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Numerical Simulation of a Pipeline Installation Procedure at the Negro River
Volume 3: Pipeline and Riser Technology; Ocean Space Utilization, 2008Co-Authors: Danilo Machado Lawinscky Da Silva, Fernando Gomes Da Silva Torres, Fabrício Nogueira Corrêa, Breno Pinheiro Jacob, Antonio Roberto De MedeirosAbstract: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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Numerical Simulation of the ‘Floating Spiral’ Pipeline Installation Procedure: First Stage, Spiral Assembly
2008 7th International Pipeline Conference Volume 4, 2008Co-Authors: Danilo Machado Lawinscky Da Silva, Fernando Gomes Da Silva Torres, Breno Pinheiro Jacob, Mauro Henrique Alves De Lima, Carl Horst Albrecht, Antonio Roberto De MedeirosAbstract:The underlying concept for the Floating Spiral Pipeline Installation method is to wind the Pipeline into a huge floating spiral, and then tow this assembly to the Installation site, where the spiral is then unwound and lowered to the seabed in a single operation. In this method the pipes are fabricated on shore, which allows for optimal control of costs and quality in Pipeline manufacturing. The first stage of the Installation process by this method consists in setting the Pipeline afloat and winding it elastically to form a large flat spiral, which is then ready to be towed to the Installation site by standard tugboats. The objective of this work is to present results of studies for a long Pipeline length at this first stage of the Floating Spiral method. The focus here is the process of moving the Pipeline around a fixed structure to wind it and form the floating spiral. Problems related to modeling of contact between Pipeline and its guides at the first spiral cycle, as well as contact between further Pipeline cycles, are rigorously analyzed. Several numerical simulations are performed; the results are presented and discussed. Other stages of this Installation method have also been studied, and are presented in a companion paper [1].Copyright © 2008 by ASME
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numerical simulation of the floating spiral Pipeline Installation procedure second stage spiral transportation behavior under waves
2008 7th International Pipeline Conference Volume 4, 2008Co-Authors: Bruno Martins Jacovazzo, Fernando Gomes Da Silva Torres, Fabrício Nogueira Corrêa, Breno Pinheiro Jacob, Carl Horst Albrecht, Antonio Roberto De MedeirosAbstract:The Floating Spiral Pipeline Installation method consists basically in winding the Pipeline into a huge floating spiral, and towing this assembly to the Installation site, where the spiral is then unwound and lowered to the seabed. In this method the Pipeline is fabricated onshore, as the spiral is created, under well controlled conditions and relatively relaxed time constraints. Therefore the welds can be better inspected, which allows for optimal control of quality in Pipeline manufacturing. The first stage of the Installation process by this method consists in setting the Pipeline afloat and winding it elastically to form a large flat spiral. This stage is studied in a companion paper [1], to be also presented at IPC2008. The second stage consists in towing the floating spiral Pipeline employing standard tugboats before laying it at the Installation site. The objective of this work is, therefore, to present results of parametric studies for a large length Pipeline at this second stage of the Floating Spiral method. The focus now is in the Pipeline behavior under wave environmental conditions during transportation. Several numerical simulations are performed and the results are discussed and compared.© 2008 ASME
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Comparison of Coupled and Uncoupled Analysis Methodologies in Towing Pipeline Installation Modeling
Volume 3: Pipeline and Riser Technology; CFD and VIV, 2007Co-Authors: P. L. F. Mendes, Breno Pinheiro Jacob, F. N. CorreˆaAbstract:This paper is focused on numerical simulations of a new Pipeline Installation method recently patented by Petrobras, in which the Pipeline is manufactured onshore and towed to the production site by two tugboats. It summarizes the comparison of the results for uncoupled and coupled models; in the former the hydrodynamic response of the tugboats is first calculated, and then applied to the pipe ends; the latter is able to take into account the change of the tugboat response under environmental loadings due to the existence of the towed pipe. The comparison is carried out based on parametric dynamic analyses which investigate the influence of several parameters on the coupling effect.Copyright © 2007 by ASME
Carl Horst Albrecht - One of the best experts on this subject based on the ideXlab platform.
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Numerical Simulation of the ‘Floating Spiral’ Pipeline Installation Procedure: First Stage, Spiral Assembly
2008 7th International Pipeline Conference Volume 4, 2008Co-Authors: Danilo Machado Lawinscky Da Silva, Fernando Gomes Da Silva Torres, Breno Pinheiro Jacob, Mauro Henrique Alves De Lima, Carl Horst Albrecht, Antonio Roberto De MedeirosAbstract:The underlying concept for the Floating Spiral Pipeline Installation method is to wind the Pipeline into a huge floating spiral, and then tow this assembly to the Installation site, where the spiral is then unwound and lowered to the seabed in a single operation. In this method the pipes are fabricated on shore, which allows for optimal control of costs and quality in Pipeline manufacturing. The first stage of the Installation process by this method consists in setting the Pipeline afloat and winding it elastically to form a large flat spiral, which is then ready to be towed to the Installation site by standard tugboats. The objective of this work is to present results of studies for a long Pipeline length at this first stage of the Floating Spiral method. The focus here is the process of moving the Pipeline around a fixed structure to wind it and form the floating spiral. Problems related to modeling of contact between Pipeline and its guides at the first spiral cycle, as well as contact between further Pipeline cycles, are rigorously analyzed. Several numerical simulations are performed; the results are presented and discussed. Other stages of this Installation method have also been studied, and are presented in a companion paper [1].Copyright © 2008 by ASME
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numerical simulation of the floating spiral Pipeline Installation procedure second stage spiral transportation behavior under waves
2008 7th International Pipeline Conference Volume 4, 2008Co-Authors: Bruno Martins Jacovazzo, Fernando Gomes Da Silva Torres, Fabrício Nogueira Corrêa, Breno Pinheiro Jacob, Carl Horst Albrecht, Antonio Roberto De MedeirosAbstract:The Floating Spiral Pipeline Installation method consists basically in winding the Pipeline into a huge floating spiral, and towing this assembly to the Installation site, where the spiral is then unwound and lowered to the seabed. In this method the Pipeline is fabricated onshore, as the spiral is created, under well controlled conditions and relatively relaxed time constraints. Therefore the welds can be better inspected, which allows for optimal control of quality in Pipeline manufacturing. The first stage of the Installation process by this method consists in setting the Pipeline afloat and winding it elastically to form a large flat spiral. This stage is studied in a companion paper [1], to be also presented at IPC2008. The second stage consists in towing the floating spiral Pipeline employing standard tugboats before laying it at the Installation site. The objective of this work is, therefore, to present results of parametric studies for a large length Pipeline at this second stage of the Floating Spiral method. The focus now is in the Pipeline behavior under wave environmental conditions during transportation. Several numerical simulations are performed and the results are discussed and compared.© 2008 ASME
Fernando Gomes Da Silva Torres - One of the best experts on this subject based on the ideXlab platform.
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Numerical Simulation of the ‘Floating Spiral’ Pipeline Installation Procedure: First Stage, Spiral Assembly
2008 7th International Pipeline Conference Volume 4, 2008Co-Authors: Danilo Machado Lawinscky Da Silva, Fernando Gomes Da Silva Torres, Breno Pinheiro Jacob, Mauro Henrique Alves De Lima, Carl Horst Albrecht, Antonio Roberto De MedeirosAbstract:The underlying concept for the Floating Spiral Pipeline Installation method is to wind the Pipeline into a huge floating spiral, and then tow this assembly to the Installation site, where the spiral is then unwound and lowered to the seabed in a single operation. In this method the pipes are fabricated on shore, which allows for optimal control of costs and quality in Pipeline manufacturing. The first stage of the Installation process by this method consists in setting the Pipeline afloat and winding it elastically to form a large flat spiral, which is then ready to be towed to the Installation site by standard tugboats. The objective of this work is to present results of studies for a long Pipeline length at this first stage of the Floating Spiral method. The focus here is the process of moving the Pipeline around a fixed structure to wind it and form the floating spiral. Problems related to modeling of contact between Pipeline and its guides at the first spiral cycle, as well as contact between further Pipeline cycles, are rigorously analyzed. Several numerical simulations are performed; the results are presented and discussed. Other stages of this Installation method have also been studied, and are presented in a companion paper [1].Copyright © 2008 by ASME
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Numerical Simulation of a Pipeline Installation Procedure at the Negro River
Volume 3: Pipeline and Riser Technology; Ocean Space Utilization, 2008Co-Authors: Danilo Machado Lawinscky Da Silva, Fernando Gomes Da Silva Torres, Fabrício Nogueira Corrêa, Breno Pinheiro Jacob, Antonio Roberto De MedeirosAbstract: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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numerical simulation of the floating spiral Pipeline Installation procedure second stage spiral transportation behavior under waves
2008 7th International Pipeline Conference Volume 4, 2008Co-Authors: Bruno Martins Jacovazzo, Fernando Gomes Da Silva Torres, Fabrício Nogueira Corrêa, Breno Pinheiro Jacob, Carl Horst Albrecht, Antonio Roberto De MedeirosAbstract:The Floating Spiral Pipeline Installation method consists basically in winding the Pipeline into a huge floating spiral, and towing this assembly to the Installation site, where the spiral is then unwound and lowered to the seabed. In this method the Pipeline is fabricated onshore, as the spiral is created, under well controlled conditions and relatively relaxed time constraints. Therefore the welds can be better inspected, which allows for optimal control of quality in Pipeline manufacturing. The first stage of the Installation process by this method consists in setting the Pipeline afloat and winding it elastically to form a large flat spiral. This stage is studied in a companion paper [1], to be also presented at IPC2008. The second stage consists in towing the floating spiral Pipeline employing standard tugboats before laying it at the Installation site. The objective of this work is, therefore, to present results of parametric studies for a large length Pipeline at this second stage of the Floating Spiral method. The focus now is in the Pipeline behavior under wave environmental conditions during transportation. Several numerical simulations are performed and the results are discussed and compared.© 2008 ASME
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numerical simulation of offshore Pipeline Installation by lateral deflection procedure
ASME 2007 26th International Conference on Offshore Mechanics and Arctic Engineering, 2007Co-Authors: Danilo Machado Lawinscky Da Silva, Rodrigo De Almeida Bahiense, Breno Pinheriro Jacob, Fernando Gomes Da Silva Torres, Antonio Roberto De Medeiros, Marcos Nadalin Vaz Da CostaAbstract:Conventional offshore Pipeline Installation operations in Brazil have been performed in an S-Lay procedure employing the BGL-1 barge, owned by Petrobras. However, this procedure has some limits, and may not be feasible in some particular scenarios. Therefore, the objective of this work is to present the numerical simulation of an alternative Pipeline Installation procedure. This procedure basically consists of performing the Pipeline assembly on shore, and deflecting it to the sea using a tug boat. The numerical simulations employ the SITUA-Prosim computational tool, which is able to incorporate the correct definition of the seabed and shore from bathymetric curves. An actual Pipeline Installation by this lateral deflection procedure is analyzed and discussed. The characterization of the procedure passes through the determination of the better velocity and direction of the tug boat in order to minimize the efforts on the Pipeline (especially due to the curvatures).Copyright © 2007 by ASME
