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Risk-Based Decision Support Model for Offshore Installations

Erdogan Gencer (), Refsdal Atle (), Nygård Bjørn (), Rosland Ole Petter () and Randeberg Bernt Kvam ()
Additional contact information
Refsdal Atle: SINTEF Digital,Oslo, Norway
Rosland Ole Petter: Statoil ASA,Stavanger, Norway
Randeberg Bernt Kvam: Oilfield Technology Group,Sandnes, Norway

Business Systems Research, 2018, vol. 9, issue 2, 55-68

Abstract: Background: During major maintenance projects on offshore installations, flotels are often used to accommodate the personnel. A gangway connects the flotel to the installation. If the offshore conditions are unfavorable, the responsible operatives need to decide whether to lift (disconnect) the gangway from the installation. If this is not done, there is a risk that an uncontrolled autolift (disconnection) occurs, causing harm to personnel and equipment. Objectives: We present a decision support model, developed using the DEXi tool for multi-criteria decision making, which produces advice on whether to disconnect/connect the gangway from/to the installation. Moreover, we report on our development method and experiences from the process, including the efforts invested. An evaluation of the resulting model is also offered, primarily based on feedback from a small group of offshore operatives and domain experts representing the end user target group. Methods/Approach: The decision support model was developed systematically in four steps: establish context, develop the model, tune the model, and collect feedback on the model. Results: The results indicate that the decision support model provides advice that corresponds with expert expectations, captures all aspects that are important for the assessment, is comprehensible to domain experts, and that the expected benefit justifies the effort for developing the model. Conclusions: We find the results promising, and believe that the approach can be fruitful in a wider range of risk-based decision support scenarios. Moreover, this paper can help other decision support developers decide whether a similar approach can suit them

Keywords: safety risk; operational risk; offshore; multi-criteria decision making (search for similar items in EconPapers)
Date: 2018
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