Towards a risk-based decision support, parameterization of hindcast data to an offshore installation duration in offshore wind farm planning phase
Master thesis
Permanent lenke
https://hdl.handle.net/11250/2763830Utgivelsesdato
2021-01Metadata
Vis full innførselSamlinger
Sammendrag
For the planning stage in any wind farm development, there are many concepts and locations to be analyzed at the point of cost, schedule, and project shareholders. Especially, the marine operation requires careful planning for an offshore wind farm. The reasonable numerical analysis can reduce costs and support decision-making properly to assess uncertainties from the project schedule or offshore installation method. Additionally, in the offshore project, environmental factors such as wave, wind, and currents are associated with uncertainty. In other words, the same project scope can make different results based on the field location. An increasing number of wind farms will be developed in the future, with the complexity of marine operations and correct decisions before a final investment decision.
The objective of this thesis is to assess the uncertainty band of expected total duration for offshore installation, based on a specific parameter from hindcast data with operational limits derived from numerical modeling or previous work. The specific parameter will be developed from Hs with a weather window based on the lowest operational limit. Used randomly-chosen locations in the North Sea, simulation can be carried out to determine the weather window parameter of Hs to total offshore duration for the development field. Hindcast data from randomly-chosen locations affect the reduction of the simulated model as increasing sample data.
Parameterizing hindcast data to estimate a total duration for offshore installation can be utilized to assess the validity of the installation method and total offshore campaign with the nameplate of a wind farm under specific environmental conditions. Through this, the suitable environmental conditions and its uncertainty band of offshore duration can be identified easily. Because the offshore duration can be directly connected to the chart period of the installation vessel or other equipment, this parameterization can be a baseline to estimate the cost.
Beskrivelse
Master's thesis in Offshore technology
Utgiver
University of Stavanger, NorwaySerie
Masteroppgave/UIS-TN-IMBM/2020;Beslektede innførsler
Viser innførsler beslektet ved tittel, forfatter og emneord.
-
A maritime perspective on integrated operations in the Norwegian petroleum industry
Aamodt, Roar (Masteroppgave/UIS-TN-IKM/2013;, Master thesis, 2013)Over the last few years the production process in the offshore Oil & Gas (O&G) industry has concentrated on innovative subsea solutions. This development has increased the need for advanced multi-purpose Offshore Support ... -
Development concepts for Sakhalin's offshore field development
Beltcov, Andrei (Masteroppgave/UIS-TN-IKM/2016;, Master thesis, 2016-06-15)When a company undertakes to develop an oilfield, certain activities represent the foundation of the development, ranging from information about the metocean conditions at the site to marketing. The concept phase itself ... -
A Qualitative Study of Access to Capital for the Norwegian Offshore Wind Cluster
Vold, Julie (Masteroppgave/UIS-SV-IMS/2020;, Master thesis, 2020-06-15)The objective of this thesis is to understand the demand for capital in the Norwegian Offshore Wind Cluster (NOWC) and suggest how the cluster management can facilitate access to capital for member companies to accelerate ...