Searched for: subject%3A%22Topsides%22
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Dekkers, Wout (author)
Steel is a widely used material in construction because of its availability, high strength-to-weight ratio, and recyclability. However, steel manufacturing consumes a lot of energy, and there is an increasing demand for more environmentally friendly building materials. Consequently, high-strength steel is becoming more popular as it reduces the...
master thesis 2024
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Schreiter, Lucas (author), Stolle, Claudia (author), Rauberg, Jan (author), Kervalishvili, Guram (author), van den IJssel, J.A.A. (author), Arnold, Daniel (author), Xiong, Chao (author), Callegare, Andyara (author)
Satellites in Low Earth Orbit (LEO) are essential for sounding the topside ionosphere. In this work, we present and validate a data set of Total Electron Content (TEC) and in situ electron density observations from the Gravity Recovery And Climate Experiment (GRACE) and GRACE-Follow-On missions as well as a TEC data set from the CHAllenging...
journal article 2023
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Veltenaar, Bas (author)
In this thesis, an automated buckling check method has been developed and validated for thin plated stiffened structures used in stressed skin topsides.<br/><br/>Thin plated stiffened structures are widely used in, for example, aircraft, bridges and ships. Recently, it has become competitive to use this type of construction to offshore topsides...
master thesis 2022
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de Jong, bart (author)
Growing populations, high-technology applications and the energy transition raise the demand for rare earth elements. As a secure supply in the future is all but certain, opportunities arise for deep-sea mining. Polymetallic nodules<br/>that are located on the vast, sediment-covered ocean floors, are one of the more promising deep-sea mineral...
master thesis 2021
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Karličić, Arso (author)
A large number of light, modular topsides in the southern North Sea is planned to be removed in the near future. Heerema Marine Contractors (HMC) is currently not the most competitive in this market as smaller contractors can often provide cheaper removal solutions with the use of smaller heavy lift vessels. HMC therefore aims to find a more...
master thesis 2021
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Eijkman, M. (author)
By 2030, a new amphibious transport ship is to be available for the Dutch Royal Navy. In light of the foreseen rise in airborne operations from the ship, more insight is desired into the impact of ship design choices on helicopter operational availability. There is need for a predictive tool, which can be used in the early design phase of the...
master thesis 2021
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Bakker, Marieke (author)
Amazing Grace will be needed for the removal of offshore platforms that are out of Pioneering Spirit 's reach. The base case design of Amazing Grace is an enlarged version of Pioneering Spirit (Figure 1). Amazing Grace uses mainly Quick drop Ballast tanks, releasing a lot of water at once, for lifting. Pioneering Spirit uses mainly a pneumatic...
master thesis 2019
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Mullenders, Vincent (author)
Imagine standing under a load with a weight equivalent to more than 5,000 Tesla’s model X. Panicking is not an option and you need to be fully focused on completing a crucial task. There is no option to leave this precarious situation and your contribution is vital to the success of a multi-million dollar project. Sounds frightening, right?...
master thesis 2019
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Vossers, Christiaan (author)
Over 450 oil platforms need to be removed from the North Sea in the next decade. Each of these platforms is custom designed for installation and service lifetime, but not for decommissioning. Allseas' Pioneering Spirit is the largest heavy lift vessel in the world, capable of lifting complete topsides in a single-lift operation. The vessel’s...
master thesis 2019
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Voorend, Daniël (author)
master thesis 2018
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van der Valk, Ramon (author)
HeeremaMarine Contractors (HMC) owns and operates several semi-submersible crane vessels (SSCV) used for offshore heavy lift operations. Throughout the engineering phase of a (dual crane) heavy lift, dynamic lift models are generated by combining bodies with their hydrodynamic properties, inertia and spring-dashpot elements. The models represent...
master thesis 2017
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Dominguez Ollero, Rocio (author)
The oil and gas industry is seeking to improve safety on its current operations procedures (Choudarki, 2012). From all oil and gas operations, Topside Installation Processes (TIP) are the only offshore activity that counters one of the golden safety rules, “do not stand or walk under suspended loads” (Peuscher &amp; Groeneweg, 2012). As a...
master thesis 2017
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Van Campen, D.M. (author)
Pioneering Spirit, Allseas newest vessel, is specialised in offshore platform installation and decommissioning. The goal of this research is to find a solution for the interface between the topside lifting system and platform jacket legs without the necessity of lengthy preparation work to platform. In a research regarding platforms...
master thesis 2016
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Den Haan, B.C. (author)
In the last decades a lot of oil platforms have been built. According to Infield (Infield, 2015), there are over 800 oil platforms out in the ocean. These platforms need to be decommissioned at the end of their lifetime. The Pioneering Spirit (PS), is a state-of-the-art multi-purpose twin hull vessel with the capability to decommission and...
master thesis 2016
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Bakker, F.C. (author)
This Msc graduation study covers the installation of topsides on a jacket by an offshore heavy lift crane vessel, and its related problems. One of the problems take place after the topside is hoisted on the jacket, during the weight shift from the hoist cable onto the jacket. The topside then exerts large horizontal forces upon the crane and...
master thesis 2015
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Astafyeva, E. (author), Zakharenkova, I. (author), Doornbos, E.N. (author)
By making use of multiple ground-based and spaceborne instruments, we study ionospheric and thermospheric behavior during the moderately intense geomagnetic storm of 29–31 August 2004 (minimum Dst excursion of ?128?nT). Although this storm was far from the strongest in solar cycle 23, it provoked quite interesting effects in the ionosphere, such...
journal article 2015
Searched for: subject%3A%22Topsides%22
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