Herald Scotland: Researchers: New technologies could add decades to life span of North Sea oil reserves

A team at Edinburgh's Heriot-Watt University say they have made a breakthrough in developing clean and cheap methods to maximise extraction from existing fields.

The university's Centre for Enhanced Oil Recovery has been working on a technique known as low-salinity water injection and researching which fields would benefit most from it. The team has also been developing gas injection technologies for use in reservoirs that are already flooded with water.

Professor Mehran Sohrabi, the centre's director, believes new technologies could be a game changer for the industry and has called for more investment to reverse the decline in North Sea production. He said: "At least half of the original oil still remains in the North Sea reservoirs but there are great challenges in extracting it using enhanced oil recovery (EOR) techniques.
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