Methodology for the analysis of risks during the construction and installation phases of an offshore platform

Trbojevic, V.M.; Bellamy, Linda J.; Brabazon, Philip G.; Gudmestad, T.; Rettedal, W.K.

doi:10.1016/0950-4230(94)80049-9

Cited by 12 publications

(4 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…During a pilotage if a hazard is released, the accidental event can escalate to one of the several possible consequences. In the analysis of marine or engineering operations, the fault and event trees describe not only mechanical failures, but also operators' (human) front line and recovery errors [72]. As it is mentioned in the above section there are many consequences as a result of the pilot's related errors but the major causes of pilotage errors based on [23] are illustrated in Table 3 and Fig.…”

Section: Basic Eventsmentioning

confidence: 98%

Application of a generic bow-tie based risk analysis framework on risk management of sea ports and offshore terminals

Mokhtari

Ren

Roberts

et al. 2011

Journal of Hazardous Materials

125

View full text Add to dashboard Cite

Section: Basic Eventsmentioning

confidence: 98%

Application of a generic bow-tie based risk analysis framework on risk management of sea ports and offshore terminals

Mokhtari

Ren

Roberts

et al. 2011

Journal of Hazardous Materials

125

View full text Add to dashboard Cite

“…• a separate independent project group was established to carry out construction risk analysis of the entire construction, tow and installation process. The team was given access to all design, construction and maritime documentation [18,19]. The team had all the way until final installation at the site the best possible cooperation with the construction management and the parent organization (Shell International in The hague, The Netherlands).…”

Section: Adjustments During the Construction Of The Troll Platformmentioning

confidence: 99%

Management of challenges during the construction of offshore facilities

Gudmestad¹

2019

Int. J. EQ

View full text Add to dashboard Cite

The construction of offshore facilities for development of oil and gas deposits is preceded by careful Conceptual Studies, front-End Engineering Design Studies (fEED studies) and a Detailed Engineering phase including accurate construction planning. Still, incidents during the Construction Phase could lead to needs for implementation of physical strengthening of construction details or changes to the construction process. These incidents could emerge from information coming from the construction of other facilities, detection of design errors or aspects which were overseen during the engineering phase. Serious consequences, like loss of assets or fatalities, could occur in case the unexpected information was not assessed and changes were not implemented. In this paper, we report on how the design and construction processes were adjusted during the construction phase of the largest of the North Sea platforms, the Troll offshore gas production facilities, as new information became available while the platform was in the construction phase. The assessment of all incoming information and implementation of mitigating measures led to the successful construction, installation and start-up of gas production from the platform. Of particular importance for the success was the open attitude by the operator of the construction project to allow for voicing of concerns from companies hired to do verification, external reviewers and from project personnel. The lessons learned during the construction of these facilities could be very useful for those involved in the design and construction of large projects, in particular in offshore oil and gas projects where the forces due to waves and currents and the strains due to bending and pressures are not always well known initially. The paper is concluded by a recommendation to listen to those presenting warnings to project management during project execution (including the detailed engineering and construction phases).

show abstract

“…Forecasting of weather windows has been studied in the context of offshore construction projects, where the prediction of a weather window, which does not hold, can result in project delays. A risk reduction strategy is to accompany each weather window forecast with probabilities of the window being breached by large and moderate margins . However, maintenance planning has different challenges to construction.…”

Section: Model Evaluation Criteriamentioning

confidence: 99%

An economic impact metric for evaluating wave height forecasters for offshore wind maintenance access

et al. 2015

View full text Add to dashboard Cite

This paper demonstrates that wave height forecasters chosen on statistical quality metrics result in sub-optimal decision support for offshore wind farm maintenance. Offshore access is constrained by wave height, but the majority of approaches to evaluating the effectiveness of a wave height forecaster utilize overall accuracy or error rates. This paper introduces a new metric more appropriate to the wind industry, which considers the economic impact of an incorrect forecast above or below critical wave height boundaries. The paper describes a process for constructing a value criteria where the implications between forecasting error and economic consequences are explicated in terms of opportunity costs and realized maintenance costs. A comparison between nine forecasting techniques for modeling and predicting wave heights based on historical data, including an ensemble aggregator, is described demonstrating that the performance ranking of forecasters is sensitive to the evaluation criteria. The results highlight the importance of appropriate metrics for wave height prediction specific to the wind industry, and the limitations of current models that minimize a metric that does not support decision making. With improved ability to forecast weather windows, maintenance scheduling is subject to less uncertainty, hence reducing costs related to vessel dispatch, and lost energy due to downtime

show abstract

Methodology for the analysis of risks during the construction and installation phases of an offshore platform

Cited by 12 publications

References 0 publications

Application of a generic bow-tie based risk analysis framework on risk management of sea ports and offshore terminals

Application of a generic bow-tie based risk analysis framework on risk management of sea ports and offshore terminals

Management of challenges during the construction of offshore facilities

An economic impact metric for evaluating wave height forecasters for offshore wind maintenance access

Contact Info

Product

Resources

About