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Secure Storage

Secure Storage Overview:

Secure Storage focuses on technologies to:

  • Confirm that the carbon dioxide (CO2) (and brine) remains in the storage complex
  • Detect and quantify leaks should they occur.

Secure storage includes geomechanical analyses to assure caprock integrity and monitoring in the deep subsurface (both above and below the storage reservoir), in the shallow subsurface, and at, and above, the ground surface to detect and quantify leakage, should it occur. Some technologies employed for plume detection and storage efficiency are also used for secure storage.  For secure storage, the technology is focused on the overburden or underburden instead of the reservoir. 

Research in Secure Storage includes:

  • New tools for in-situ measurement of geomechanical properties in the caprock.
  • Development of improved surface, near-surface, and subsurface monitoring tools and field data acquisition which focuses on detecting and quantifying leaks.
  • Modeling which incorporates geomechanical processes that impact the possibility of leakage.
  • Field validation of modeling algorithms.
  • Development of integrated sensor networks for leak detection and quantification, assurance monitoring and geomechanical impacts.
  • Development and validation of above-zone monitoring interval (AZMI) tools, acquisition, and modeling.
  • Development of technologies to augment seismic methods for leak detection and quantification.


The geomechanical framework for secure CO₂ storage. The methodology uses laboratory test data, geophysical data, and petrophysical data to generate a reservoir model, perform simulations, and develop/refine a geomechanical Earth model.

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