Carbon Dioxide Storage

Carbon storage is defined as the placement of CO₂ into a repository in such a way that it will remain stored (or sequestered) permanently. It includes two distinct sub-areas: (1) geologic sequestration, (2) terrestrial sequestration

Storage of CO₂ in a geologic formation is the injection of CO₂ into an underground formation that has the capability to contain it securely over a long period of time. Five types of geologic formations, each with different challenges and opportunities for CO₂ storage are:

1. Oil and Gas Bearing Formations
2. Saline Formations
3. Basalts
4. Deep Coal Seams
5. Oil and Gas Rich Shales

For more information, please visit www.netl.doe.gov.