After stressing the importance of marginal field developments, especially in the North Sea, the paper describes a new concept based on innovative technologies.

The concept makes use of the multiphase pumping technology recently developed by the oil industry, combined with a small floating support and retrievable flexible fines.

After describing the technical aspects of the system, the paper gives its main advantages compared to traditional development schemes.

A preliminary economical analysis, based on field data, clearly shows the areas of application and the benefit for the oil operator.

The paper concludes on the potential interest of the system to North Sea fields.

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