A real choice exists today on a number of discoveries between platform-based or subsea development solutions. Statistics from the Norwegian continental shelf (NCS) show that fields developed with fixed platforms have a substantially higher recovery factor. The potential for a later commitment to...

The decline in oil prices, combined with high costs which are slow to deflate, has brought forward the date when some fields on the Norwegian continental shelf (NCS) will cease production. Measures are therefore urgently required to extend the producing life of these fields and to improve their...

Drilling expenses has increased sharply in recent years. The productivity of drilling operations - in terms of meters drilled per day - significantly influences exploration costs. This study analyzes the effect of different types of learning on offshore drilling productivity. The econometric...

Recently, we have seen falling oil prices combined with sticky costs at a high level in the petroleum industry. This causes project postponements, thus challenging reserve replacement of oil companies and security of supply for consumers. Costs are particularly high for drilling. High rig rates...

The oil companies are concerned to replace the petroleum reserves they produce in order to maintain their future level of activity. Booked reserves also represent an important input when analysts value these companies. Many producer countries want to control their own resources, a goal which can...