Norway-based Aker Solutions has introduced a new semisubmersible platform for oil and gas producers to help them unlock more marginal fields in harsh environments.

The new Lean Semi weighs less and is quicker to deliver, having been designed to help bring on stream fields holding as much as 300 million barrels of oil equivalents at water depths ranging from 100m to 400m.

The platform’s topside weighs around 6,000t and has been designed for use of standardised equipment. This enables positioning of equipment skids and small modules on the deck. 

Aker Solutions engineering business head Valborg Lundegaard said: “We envisage these platforms will be ideal in developing marginal resources that are located next to bigger fields with excess processing capacity.

"The new structure is the result of a review of every single platform item to enable a 60,000bpd production capacity."

“The concept combines lean design philosophy with the highest levels of safety.”

Combining elements from two designs for the North Sea and the Gulf of Mexico, the new structure is the result of a review of every single platform item to enable a 60,000bpd production capacity.

The platform consists of an unmanned hull combined with a single flat top deck to ensure structural integrity.

The semisubmersible drilling and production platforms, floating production storage and offloading vessels and tension-leg platforms designed by Aker Solutions can be used in deep or medium water depths.


Image: The Lean Semi platform comprises an unmanned hull combined with a single flat top deck. Photo: courtesy of Aker Solutions.