... Abstract Flexible risers are an important component of offshore production systems of oil and gas. They are used to link subsea pipelines to floating installations, such as FPSOs. Flexible risers have been one of the preferred deepwater riser solutions in many regions of the world due...

... Abstract This paper presents detailed learnings into the dissection of a flexible riser section, which had been operating for seven (7) years and subjected to high rates of fatigue damage, after operational field changes. Detailed global and local fatigue analyses were performed to assess...

... requirement water depth riser flexible riser References References J. Mercier , R. Goldsmith , L. Curtis , "The Hutton TLP: A Preliminary Design" Society of Petroleum Engineers SPE-10647-PA "Table of Early Semi-submersibles" Wikipedia : https://en.wikipedia.org/wiki/Semi...

... in the tensile armors. In order to better assess the integrity of the tensile armor at the top section of flexible risers Petrobras has developed a monitoring technique known as MODA (Monitoring based on Optical fiber attached Directly on Armor wires). As the name implies, this technique uses optical sensors...

... Abstract This paper presents the technical solutions assessment and details of the first implementation of the pre-laying procedure of flexible lazy wave risers, including buoyancy modules, before FPU arrival, on a Pre-Salt scenario. Flexible risers are easily handled due to the small bending...

... Risers, Free Hanging Flexible Risers and FSHRs (Free Standing Hybrid Risers). Nowadays, with greater maturity and new design premises, considerable cost reduction results have been obtained, mainly motivated by the reduction of buoyancy modules and reduction of riser sections quantity in the flexible...

... energy transmitted by each part. thickness coating pipe hertzian theory upstream oil & gas rigid riser deformation cross section flexible pipe evaluation orcaflex analysis contact force stiffness riser flexible riser external coating offshore technology conference software...

... In the last few decades, flexible risers have increasingly been used in the offshore oil and gas industry. In gas applications these risers can generate high amplitude tonal pressure fluctuations when the gas velocity reaches a threshold value. The resulting pressure fluctuations can...

... deformations and movements. Slug flow can potentially have an impact on pipe dynamics, in particular for cases where severe slugging can occur. node displacement riser arctic engineering flexible riser offshore technology conference two-way fluid-structure interaction experiment geometry...

.... Segments of flexible risers experiencing large curvatures may respond non-linearly with respect to armour friction behaviour, but the effects on the global displacement responses are minor. However, the armour wire stresses are significantly influenced by such local friction, causing hysteresis effects...

... detailed finite element model flexible riser system curvature flexible riser shell element left end offshore technology conference scale nonlinear dynamic simulation simulation geometrically nonlinear upstream oil & gas coupling otc 24450 riser artificial intelligence element...

... Abstract The integrity of BP's West of Shetland (WoS) flexible riser systems has been actively managed using a risk-based approach since they were installed in the late 90s. A failure mode that was identified as part of this process was the fatigue of armour wires in those risers with flooded...

... Abstract In the present contribution, we address the use of continuous vibration measurements to detect rupture of wires in the tensile armor layers of flexible risers. The interest in structural health monitoring of these components of deep and ultradeep water petroleum production systems has...

... Abstract Flexible riser systems are widely adopted by the industry as solutions to interconnect subsea equipment and pipelines to floating production units. Their unique ability to withstand motion and their ease of installation make flexible riser systems a favorable solution when compared...