The Atlantis Artificial Seabed Concept

The Atlantis Artificial Seabed concept is a new concept for exploration drilling and field developments in deep and ultra deep waters.

The future of the oil and gas industry lies in the development of deepwater and
ultra-deepwater prospects. To facilitate development of these opportunities the industry is challenged to find improved methods that can reduce both the initial investment costs and the operational costs considerably.

The main cost-driving factor of most deepwater field developments is the drilling of the development wells and the subsequent well intervention requirements during the field lifetime. In some cases the cost associated with these operations can be up to 50 % of the total development costs.

The Atlantis Deepwater Concept represents a unique and very simple approach for meeting the deep- and ultra-deepwater challenges of offshore drilling, field development and production. An artificial buoyant seabed (ABS) is installed at shallow depth, typically 200-400 meters, and replaces the functions of the real seabed and no equipment remains on the real seabed. A tieback of the first well casing, i.e. the 20” surface casing, is used as anchoring for this “new seabed”.
The concept can also be used as a riser tower, with or without wells.

The concept can also be used as a riser tower, with or without wells.

Typical geographical areas of application