North Sea Rock Formations Prove Ideal for Large-Scale Carbon Storage

North Sea Rock Formations Prove Ideal for Large-Scale Carbon Storage

By
Drew Campbell

Publish Date:May 17, 2025

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📰 The quick summary: Test wells beneath the North Sea reveal promising potential for carbon storage in rock formations, advancing Europe’s capacity to safely store captured CO2 emissions underground.
📈 One key stat: Two wells drilled nearly two kilometers below the sea floor showed strong carbon storage potential with good to very good porosity and permeability in the sandstone formations.
💬 One key quote: “The wells, part of Equinor’s Low Carbon Solutions division, suggest the underground rock formations could be ideal for safely storing carbon dioxide emissions, according to an announcement by the Norwegian Offshore Directorate.”

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1️⃣ The big picture: Equinor has made significant progress in developing carbon storage capabilities beneath the North Sea with promising results from two recently drilled test wells. The project, located about 70 kilometers offshore from Bergen, targets rock formations that could provide critical infrastructure for European carbon capture and storage efforts. Multiple layers of underground rock showed ideal characteristics for both storing CO2 and keeping it permanently sealed beneath impermeable cap rocks. This development represents a major step forward for the Smeaheia carbon storage project, which aims to position Norway as a leader in climate technology solutions.

2️⃣ Why is this good news: Rock formations beneath the North Sea demonstrated excellent properties for carbon storage, with multiple layers of dense shale intact to keep CO2 sealed underground. Preliminary injection tests returned positive results, suggesting the site can effectively store significant amounts of carbon dioxide. The geological data collected will help advance one of Europe’s most advanced climate tech projects. Beyond local benefits, this storage facility could serve carbon capture projects across Europe and the UK, creating a regional hub for emissions reduction. This progress builds on Norway’s broader ambition to become a leader in carbon capture and storage technology.

3️⃣ What’s next: Equinor will now analyze the vast amount of geological data and physical samples collected from both test sites. Eight injection tests and other findings will help determine how to move forward with the full-scale Smeaheia project. The wells have been sealed and permanently closed, but their findings lay groundwork for advanced climate tech development.

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Read the full story here: Carbon Herald – Equinor Working On Promising Carbon Storage Potential Beneath North Sea

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