Parametric solution of lateral buckling of submarine pipelines

Guha, Indranil; White, David; Randolph, Mark

doi:10.1016/j.apor.2020.102077

Cited by 14 publications

(2 citation statements)

References 25 publications

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“…Flexible pipes are important components of offshore platforms, especially in offshore oil engineering and deep-sea mining industry. As the depletion of offshore and shallow onshore oil resources, it becomes more and more important to explore the deep sea in which submarine pipelines as the foundation of marine engineering have been more widely used 1 . Among them, UFPs play an increasingly important role due to the excellent tensile and compression performance brought by their multilayer composite structures 2 .…”

Section: Introductionmentioning

confidence: 99%

Erosion Analysis for the Carcass of Unbonded Flexible Pipes

et al. 2022

Preprint

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At present, unbonded flexible pipes (UFPs) are widely used in ocean engineering for oil exploitation. In practice, erosion will lead to premature failure of pipelines. There is a lack of researches on the erosion of interlock carcass of UFPs. As the authority in the field of offshore engineering, DET NORSKE VERITAS(DNV) suggested a way to estimate the erosion rate of pipes, however, it does not study the erosion mechanism of UFPs in detail and the relevant parameters are not specified. This paper modifies erosion prediction of UFPs based on a user defined Fortran subroutine. A series of CFD simulations have been conducted, and three widely used erosion models were used for comparative verification. The effect of geometric shape on erosion rate has been carefully studied. and the effect of velocity, particle size, and concentration are also studied to verify the reliability of the improved model.

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Section: Introductionmentioning

confidence: 99%

Erosion Analysis for the Carcass of Unbonded Flexible Pipes

et al. 2022

Preprint

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“…There have been several studies regarding buckling in cylinder shells. The testing of subsea pipelines against lateral buckling has been investigated [6]. Subsea pipelines are imperfect sections that are subjected to axial compression loading.…”

Section: Introductionmentioning

confidence: 99%

Effects of geometry and material factors on the behavior of stiffened offshore pipe structures under hydrostatic pressure

Widiyanto

Prabowo

Muttaqie³

et al. 2022

J Appl Eng Science

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The world's oil and gas sectors are diverse. They utilize offshore pipes to generate millions of barrels of oil and gas to meet global energy demands. In this study we identified the critical buckling load that occurred on a cylinder shell (also known as radial buckling). Offshore pipe design must meet several criteria, one of which is the requirement for pipes to withstand the external hydrostatic pressure of seawater. The overall buckling load is calculated using the axial compression loading and the pressure on the entire surface of the cylinder shell (radial compression). The finite element analysis (FEA) method is used in our simulation. FEA is run using ABAQUS/CAE software with the Riks algorithm. Different types of cylinder shells are used in the simulation: unstiffened, stringer-stiffened, and ring-stiffened. The cylinder shell is loaded based on the depth of the installation. The material composition of the shell is varied with API 5L X65, copper-nickel alloy, and HY100 steel. The diameter sizes used are 28" (711.2 mm), 30" (762 mm), and 32" (812.8 mm). The simulation results show a critical buckling load for each variation. The critical buckling load is determined by the Young's modulus, geometric length, and moment of inertia. Based on the critical buckling loads generated, we also identify which cylinder shell composition is the strongest.

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Thermo-mechanical Behaviour of Soft Clay between Operation and Shutdown of Submarine Hot Oil Pipeline

Wang

Shen

et al. 2023

KSCE J Civ Eng

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Parametric solution of lateral buckling of submarine pipelines

Cited by 14 publications

References 25 publications

Erosion Analysis for the Carcass of Unbonded Flexible Pipes

Erosion Analysis for the Carcass of Unbonded Flexible Pipes

Effects of geometry and material factors on the behavior of stiffened offshore pipe structures under hydrostatic pressure

Thermo-mechanical Behaviour of Soft Clay between Operation and Shutdown of Submarine Hot Oil Pipeline

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