The deepwater hyperbaric GMA welding procedures for sub-sea pipeline repair are evaluated with respect to its behavior under shallow water conditions. In this study, the welding thermal cycles at three different pressure levels were investigated through experiments and simulations. Conventional...
Purpose – The purpose of this paper is to support the implementation of safety and security guidelines in the Norwegian oil and gas industry and verify the actual use of the guidelines by industry and authorities. Design/methodology/approach – An action research approach was used, exploring...
This paper describes implementation of a guideline, OLF104, focusing on safety and security in distributed control systems integrated with Information and Communication Technology (ICT). Increased networking and increased use of ICT impacts the complexity and vulnerability of the systems. The risk...
Assurance of supply is a crucial objective for producers and consumers of oil and gas. A basic requirement to meet this objective is that producers and transmitters have sufficient economic incentives and capabilities to assure a desired degree of supply. The topic of this paper is to evaluate these...
In the dry cleaning of the exhaust gas from the aluminium cells impurities are accumulated in the finer fractions of secondary alumina from the dry scrubbers. The present work describes new methods for the determination of dust composition, aiming at increasing the understanding of the effect of...
This paper presents an approach to variability modeling where variability models are made in a separate, generic language CVL (Common Variability Language) that works with any other language defined by a metamodel. CVL models specify both variabilities and resolutions of these, and by executing a...