Key large-scale CO2 capture and storage (CCS) projects

A number of large-scale CCS projects exist – capturing and storing millions of tonnes of CO2 annually. Many more are planned. In particular, the oil and gas industry has been operating several CCS projects for a number of years. These have helped build understanding of implementing projects in different geological environments and importantly they have demonstrated that secure storage of large quantities of CO2 is possible.

Active large-scale CCS projects include:

Active projects

Sleipner

  • Norway
  • Natural Gas field offshore
  • Established 1996

Sleipner began storing CO2 in 1996, making it the world's first industrial-scale CCS project. Sleipner is a natural gas field in the North Sea; CO2 has to be separated from the gas before it can be sold. Around 1 million tonnes of CO2 are stored every year in a saline formation located 1 kilometer below the seabed. Sleipner is operated by Statoil.

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Weyburn-Midale

  • Canada/USA
  • Established 2000

A 330-kilometer pipeline connects a coal gasification plant in North Dakota, USA, to depleted oilfields in Weyburn, Canada. Since 2000, approximately 2.7 million tonnes of CO2 a year have been stored in these oil fields. Two Weyburn projects exist: a commercial CO2 enhanced oil recovery (EOR) project at the Weyburn oilfield and the research project managed by the Petroleum Technology Research Centre that is being conducted in two phases.

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In Salah

  • Algeria
  • Natural Gas field onshore
  • Established 2004

In Salah is a pioneering, industrial-scale CCS project that has been operating in Algeria since 2004. The project is operated by a consortium of BP, Sonatrach and Statoil. More than 3 million tonnes of CO2 have already been geologically stored at Krechba in a deep saline formation 2 kilometers below the Earth's surface. The storage formation at Krechba mirrors those commonly found in the USA, north-west Europe and China. CO2 injection has now ceased and the project is in post-closure phase. A number of monitoring technologies are being trialled.

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Snøhvit

  • Norway
  • Natural Gas field offshore
  • Established 2008

The project sees 700,000 tonnes a year being stored in a depleted natural gas reservoir deep below the seabed every year. Statoil operates the CCS project at the Snøhvit Liquefied Natural Gas (LNG) plant, where CO2 is separated from natural gas before the gas is liquefied. The CO2 is injected into a sandstone formation called Tubåsen, located 2,600 meters below the seabed.

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Cranfield

  • United States
  • Established 2008

The Cranfield project is funded largely by the US Department of Energy and delivered by the Southeast Regional Carbon Sequestration Partnership together with a range of partners. In a region where over a billion tonnes of CO2 are emitted naturally, the project uses Enhanced Oil Recovery techniques to test the capacity of the Tuscaloosa formation to hold large quantities of CO2.

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