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Underwater vehicles and other mobile platforms are seeing increased use as tools within fish farming, particularly due to current trends towards Precision Farming practices, and more exposed farming sites. Although many of the applications of such tools (e.g., net cleaning and inspection) have...

Marine oil spills have devastating environmental impacts and extrapolation of experimental fate and impact data from the lab to the field remains challenging due to the lack of comparable field data. In this work we compared two field systems used to study in situ oil depletion with emphasis on...

In an In-Situ Burning (ISB) operation of a marine oil spill, igniting the oil is usually the critical step with emulsification as the main limiting factor. Several rules-of-thumbs exist to estimate ignitability based on the water content of the water-in oil emulsion. For example, emulsions with a...

Ensuring adequate hole cleaning is important for safe, efficient and economic drilling operations. Most models and flow loop experiments assume steady-state conditions. However, drilling is an inherently transient process. Even in the steadiest situation, the drill bit position advances continuously...

Deviated well sections are common in modern well construction. In mature areas like the North Sea region, practically all producers or injector wells will have highly deviated sections. These wells must be completed in an optimal manner especially with respect to annular barrier integrity. The zonal...

To achieve proper efficiency, for some geothermal applications it is necessary to drill deep connected closed loop wells. These wells are connected by a series of parallel horizontal well sections pairs for heat transfer from the formations. The separation of these wells, and the distance between...

The principle of Enhanced Geothermal System (EGS) technology is that water injected at a sufficiently high pressure will lead to the fracturing of naturally impermeable rocks, and as a result, this will create hydraulic communication between wells. In this way, reservoirs not previously considered...