Searched for: subject:"Jack%5C-up"
(1 - 15 of 15)
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Linthorst, Joost (author)
GustoMSC, an NOV company, is a market leader in the design of offshore wind installation jack-ups. Offshore wind turbine installation has been situated mainly in the North Sea, which is not very seismically active. As a consequence, wind turbine installation jack-ups have been designed and analysed for low seismic excitations. The offshore wind...
master thesis 2019
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Sonnema, Wouter (author)
Since the exploitation of wind as a renewable energy resource, jack-up vessels equipped with more than three independent legs are increasingly employed to transport and install the components of offshore wind turbines. By lowering the movable legs the vessel is able to elevate the hull from sea water level. In elevated position the vessel...
master thesis 2019
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Fila, Joep (author)
As the demand for renewable energy is constantly rising, more offshore wind farms are being built at sea to meet European targets towards sustainable energy transition. Van Oord’s offshore installation vessel Aeolus was purposely-built to transport and install foundations of offshore wind turbines. To ensure that the vessel remains competitive...
master thesis 2018
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Berbers, Stijn (author)
Seafox owns and operates a fleet of 12 Jack-ups. The design life of these Jack-ups is typically around 30 years. However, some have remained operational after exceeding their design life. It is therefore critical to gain an understanding how long and under what conditions these jacks-ups are still able to operate safely. There are two main...
master thesis 2017
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Schipper, R.H.J. (author)
Jack-up structures are widely used in the offshore industry. Not only in the field of oil and gas, but also in the installation for offshore wind turbines. These jack-up structures typically consist of three trusswork legs, where the foundation is formed by inverted conical cones that are penetrated into the soil, called spudcans. The spudcans...
master thesis 2016
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Van Dalfsen, A. (author)
Due to the growing offshore wind energy market and the increasing interest of the oil and gas industry, there is a steadily increasing demand for the use of jack-ups all over the world. Particularly, the number of wind turbine installation vessels has increased from 2 in 2005 to 40 currently, with a yearly growth expectation of 30% till 2020....
master thesis 2016
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Vellekoop, A. (author)
master thesis 2015
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Hoes, R.S. (author)
This thesis researches the change of the hydrodynamics of jack-up spudcans close to the seabed and the influence of this change on calculated jack-up motions. Two GustoMSC jack-up designs are selected as typical: a large drilling jack-up (CJ-70), and a small wind turbine installation vessel (NG-2500X). Limits for allowable wave heights during...
master thesis 2015
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Koole, T. (author)
This thesis describes an analysis of modern jack-up designs. Trends throughout the various designs are identified and justified. The environmental loads and dynamic response of these modern designs are analysed using the methodology as described in current guidelines. Furthermore, the water depth limit of current design philosophy is...
master thesis 2015
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Dimitriou, A. (author)
So far jack-ups have successfully operated in depths of 80 to 100 m and some are capable of operating in water depths of up to 150 m. In order to circumvent the depth limitation, it was suggested by Heerema Marine Contractors (HMC) that a base could be designed with the ability to support a jack-up rig, thereby increasing its operational depth...
master thesis 2014
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Lietaert, B.K.J. (author)
The aim of this research project is to develop a hazard map for punch-through failure during jack-up rig installation in the Gulf of Suez. This map can be used to make an upfront assessment of unfavorable foundation conditions at a proposed installation site. This is not self-evident due to the complex geological setting of the area. Data to...
master thesis 2011
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Kramer, G. (author)
The open-ended large diameter piles, used by Woodside Offshore Petroleum Ltd. as foundation for the offshore platform in Goodwyn-A, Australia, experienced deformations during their installation. The cause of this deformation was not clear as they were never observed before. Pile tips seemed to have obtained a sort of peanut shape deformation....
master thesis 1996
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Zeelenberg, L. (author)
The first report is about: A jack-up rig is a mobile offshore platform. Basically, it is a self-elevating pontoon, which can be supported by retractable legs resting on the sea bed. Recently, it is proposed to use these platforms for production of marginal fields, what implies a longer term use. Furthermore, there are plans to use such platforms...
master thesis 1990
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Kraak, A.W. (author)
Jack-up offshore structures have a natural period which lies in the high frequency tail of the spectra of North Sea storm waves. This taxi has Significant energy and the jack-up may experience significant dynamic Data have become available from field measurements of the dynamic behaviour of the Maersk Guardian jack-up rig. These data have been...
master thesis 1990
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Nagy, S.A. (author)
The main objective of this study is to get an insight into the dynamic behaviour of a jack-up platform with lattice legs, in elevated condition. The main parameters to be examined are: a. Water loads b. Deck motions c. Hydrodynamic damping These parameters will ba investigated for the excitation ot the platform by a regular wave as weIl as a...
master thesis 1986
Searched for: subject:"Jack%5C-up"
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