A finite element based study on lowering operation of subsea massive structure

Wang, Facheng; Wang, Jun; Tang, Ke Dong

doi:10.1007/s13344-017-0074-6

Cited by 14 publications

(6 citation statements)

References 6 publications

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“…As seen in Figure 4, it was observed that the highest generated publications were 19 publications in 2020, followed by 14 publications in 2014 and 2016, then 13 documents in 2019, and 12 documents in 2021. However, there are limited publications found on the installation of marine hoses [160][161][162][163][164][165][166][167][168][169][170] compared to other marine systems [171][172][173][174][175][176][177][178][179][180].…”

Section: Resultsmentioning

confidence: 99%

Scientometric Review and Thematic Areas for the Research Trends on Marine Hoses

et al. 2022

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For over three (3) decades, there has been an increase in research on energy sources from the production of oil using flexible marine risers, such as marine hoses. Marine hoses are conduits for special use as rubberized structures with hybrid polymer composites for offshore platforms in the oil and gas industry. This scientometric study uses qualitative, quantitative, and computational approaches. Data were retrieved using a research methodology that was created for this study using the SCOPUS and Web of Science (WoS) databases. This study provides a bibliometric literature review on marine hoses with an emphasis on the advancements made in the field from recent developments, geographical activity by countries, authorship histories, partnerships, funding sources, affiliations, co-occurrences, and potential research areas. The study found that the USA had the most publications, but there were fewer co-occurrences with connections outside the cluster. Due to the difficulty of adaptation, acceptability, qualification, and deployment of marine hoses in the offshore marine industry, this topic contains more conference papers than journal papers. Therefore, more funding sources and collaborations on marine hoses are required to advance the research. This study makes a contribution to scholarship on advances made in petroleum exploration and production for (un)loading hoses.

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Section: Resultsmentioning

confidence: 99%

Scientometric Review and Thematic Areas for the Research Trends on Marine Hoses

et al. 2022

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“…The problem of continuous lowering analysis is modelled with a set of differential equations in the matrix form. For Equation (15), the matrixes and vectors can be expressed with the parameters of the discrete system, as follows:…”

Section: Discussionmentioning

confidence: 99%

“…These studies all analysed the problem with fixed rope length, which could save computational costs. Therefore, the fixed-length method is recommended in the widely-recognized recommended practice (DNV-RP-H103 [12]) for the modeling and analysis of offshore operations, and has been widely adopted for subsea structure lowering operations [13][14][15][16]. However, this method does not take into account the effect that the lowering velocity may have on the dynamics of the system.…”

Section: Introductionmentioning

confidence: 99%

A Dynamic Model for Continuous Lowering Analysis of Deep-Sea Equipment, Based on the Lumped-Mass Method

Gao

Yan

Ni³

et al. 2020

Applied Sciences

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The installation of subsea equipment is a critical step in offshore oil and gas development. A dynamic model to evaluate the lowering process is proposed. The cable–payload system is discretized as a series of spring dampers with the lumped-mass method. For the first time, not only the lowering velocity but also the rope’s structural damping and the nonlinear loads, such as drag force and snap load, are considered. The lowering velocity of the cable is considered through a variable-domain technique. Snap loads are considered by setting the internal forces in the elements to be zero when the cable slacks. A series of simulations reveals that the lowering velocity has great effects on the dynamic force in the cable. However, the structural damping of the cable has little effect on the system response. The snap load may occur in the cable when subjected to rapid downward heave motion, and decreases with the lowered depth increasing. The cable stiffness affects the system’s resonance depth, but has little effect on the peak dynamic force. The present work should be a valuable reference for future subsea equipment installation analysis.

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“…However, wave action has an impact on the motion and strength of CALM buoy hose systems. Wave loads are also considered during hose connection operations, hose riser deployments, and hoseline/pipeline installations [109,110]. Based on hydrodynamic sensitivity studies, different sensitivity studies have been conducted for marine hoses and marine risers [111][112][113].…”

Section: Introductionmentioning

confidence: 99%

Investigation on Hydrodynamic Characteristics, Wave–Current Interaction and Sensitivity Analysis of Submarine Hoses Attached to a CALM Buoy

Amaechi

Wang

2022

JMSE

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There is an increase in the utilization of the floating offshore structure (FOS) called Catenary Anchor Leg Mooring (CALM) buoys and the attached marine hoses due to the increasing demand for oil and gas products. These hoses are flexible and easier to use but have a short service life of about 25 years. They are adaptable in ocean locations of shallow, intermediate and deep waters. In this research, a numerical model was developed using a coupling method modeled by utilizing ANSYS AQWA and Orcaflex (Orcina Ltd., Ulverston, UK) dynamic models of the CALM buoy hoses. Two cases were comparatively studied: Lazy-S and Chinese-lantern configurations, under ocean waves and current. Comparisons were also made between coupled and uncoupled models. This research presents the hydrodynamic characteristics with a sensitivity analysis on the influence of waves, current attack angle, soil gradient, soil stiffness and environmental conditions that influence the performance of marine hoses. The study comparatively looked at the configurations from dynamic amplification factors (DAF) on marine hoses. The results show that marine hoses can be easily configured to suit the designer’s need, seabed soil type, seabed topography and the profiles that are useful for manufacturers. The sensitivity analysis also shows the effect of hose parameters on its hydrodynamic behavior from the wave–current interaction (WCI).

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A finite element based study on lowering operation of subsea massive structure

Cited by 14 publications

References 6 publications

Scientometric Review and Thematic Areas for the Research Trends on Marine Hoses

Scientometric Review and Thematic Areas for the Research Trends on Marine Hoses

A Dynamic Model for Continuous Lowering Analysis of Deep-Sea Equipment, Based on the Lumped-Mass Method

Investigation on Hydrodynamic Characteristics, Wave–Current Interaction and Sensitivity Analysis of Submarine Hoses Attached to a CALM Buoy

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