Floating spar platform as an ultra-deepwater structure in oil and gas exploration

Islam, A. B. M. Saiful; Soeb, Mahmudur Rahman; Jumaat, Mohd Zamin

doi:10.1080/17445302.2015.1112179

Cited by 7 publications

(3 citation statements)

References 35 publications

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“…From the comparison between Equation (6) with Equations (5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15) of Reference [27], it is found that, by applying the SPM system instead of the MPM, the changes take place at the rotational-rotational diagonal terms and the surge-pitch, sway-roll, pitch-surge and roll-sway crossing terms.…”

Section: Force-displacement Relationshipmentioning

confidence: 99%

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Response Characteristics of the DeepCwind Floating Wind Turbine Moored by a Single-Point Mooring System

et al. 2018

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In recent years, the SPM (Single-Point Mooring) concept has been widely employed in several branches of the naval architecture and marine engineering field, such as FPSOs (Floating Production, Storage and Offloading units), offshore oil rigs, etc., but not yet popular in the offshore wind energy. To investigate the response characteristics of an SPM-moored FWT (Floating Wind Turbine), in the present work, we perform a numerical study on the DeepCwind semisubmersible wind turbine, using the state-of-the-art open-source tool FAST. The free-decay test results show that the SPM layout affects the natural periods of the wind turbine in rotational modes, as well as the mooring stiffness of the diagonal rotational and crossing rotational-translational terms, especially in relation to the yaw mode. Comparisons of the RAOs (Response Amplitude Operators) elucidate that the presence of wind influences significantly the sway, roll and yaw motions of the SPM layout. Finally, the weathervane test shows that an asymmetry exists in the free-yaw motion response when the semisubmersible wind turbine is moored by an SPM system.

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Section: Force-displacement Relationshipmentioning

confidence: 99%

“…SPM technology was firstly deployed in the offshore oil engineering, involving some FPSOs (Floating Production, Storage and Offloading units) and oil rigs [8][9][10][11][12]. FPSOs have been successfully installed in North Sea, Brazil, Mediterranean Sea, etc.…”

mentioning

confidence: 99%

Response Characteristics of the DeepCwind Floating Wind Turbine Moored by a Single-Point Mooring System

et al. 2018

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“…Coupled dynamic analysis technique for fully couple dynamics has been developed using the quasi static approach. Chen et al [3] calculated the motions of a spar and its mooring system in three different water depths by using a quasi-static approach and a coupled dynamic approach. The present genetic algorithm to optimize the mooring design of floating platforms has been investigated by Shafieefar and Rezvani [13].…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on Translation Motion Characteristics of Moored Symmetrical Semi-submersible in Regular Waves

Khairuddin¹,

Koto²,

Ain³

et al. 2020

JMechE

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This paper proposes to carry out experiment procedures to investigate the translation motion characteristics of symmetrical semi-submersibles in long crest regular waves. The hydrodynamic response of floating structures in waves is required to be modelled correctly to ensure stability and safety. The symmetrical semi-submersible model was constructed based on a scale ratio of 1:81 in this experiment and was installed with horizontal mooring lines in a wave dynamic basin. This paper also discusses the model preparation procedures, including the mooring lines setup, instrument setup and experiment setup, before conducting the experiment. According to the experiment data, the symmetrical moored semi-submersible experienced wave frequency motion and slow varying motion due to drift force and mooring lines for sway motion; while the heave and surge motion only experienced wave frequency motion.

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Dynamic analyses and preliminary design of offshore triceratops in ultra-deep waters

Chandrasekaran

Nagavinothini

2018

Innov. Infrastruct. Solut.

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Floating spar platform as an ultra-deepwater structure in oil and gas exploration

Cited by 7 publications

References 35 publications

Response Characteristics of the DeepCwind Floating Wind Turbine Moored by a Single-Point Mooring System

Response Characteristics of the DeepCwind Floating Wind Turbine Moored by a Single-Point Mooring System

Experimental Study on Translation Motion Characteristics of Moored Symmetrical Semi-submersible in Regular Waves

Dynamic analyses and preliminary design of offshore triceratops in ultra-deep waters

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