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Monitoring, Verification, Accounting, and Assessment

MVA Tools Available for Monitoring CCS Projects
MVA Tools Available for Monitoring CCS Projects

Monitoring, Verification, Accounting (MVA), and Assessment research is focused on three key technologies: subsurface monitoring, atmospheric and near-surface monitoring, and intelligent monitoring. The combination of atmospheric, near-surface, and subsurface monitoring technologies provides a multilevel approach to confirm permanent storage of carbon dioxide (CO2). Intelligent Monitoring Systems (IMSs) that provide real-time, actionable information for operational control of storage projects will reduce the costs associated with carbon storage.

Subsurface monitoring provides the bulk of the information needed for operational control and assessing performance of the storage complex. It also is the first line of defense against unwanted migration of CO2or brine out of the storage complex. Development of subsurface monitoring methods, technologies, and tools is needed to improve certainty in: (1) detecting and tracking the movement of CO2 in diverse geologic settings of storage complexes; (2) defining the boundaries of the stored CO2 plume; (3) demonstrating long-term stability of the CO2 plume; and (4) tracking associated pressure changes and other physical property changes to identify possible release pathways in diverse geologic settings.

Atmospheric and near-surface monitoring provides assurance that stored CO2 is not being released to the atmosphere or endangering drinking water. For onshore projects, tools and methods are needed to distinguish between stored and naturally occurring CO2 and to detect and quantify releases should they occur. Offshore projects require a distinct set of tools and methods for detecting releases of CO2 from the seabed into the water column.

IMSs need to integrate diverse data acquired over different timescales from atmospheric, near-surface, and subsurface monitoring networks and convert these data into meaningful and actionable information. Data processing, analysis, and interpretation workflows that address the needs and objectives of an individual storage project must be developed. Information delivery and advanced visualization are important elements of IMSs.

More information on MVA projects can be found on the Carbon Storage Project Portfolio Page under “Monitoring, Verification, Accounting (MVA), and Assessment Projects.”

Three-component, autonomous, near-surface receiver array setup (left), and permanently installed downhole receiver array (right)
Three-component, autonomous, near-surface receiver array setup (left), and permanently installed downhole receiver array (right)

Technology Component Portfolio Interactive Map

The National Energy Technology Laboratory (NETL) is supporting a diverse portfolio of projects, which can be viewed in the Tableau Dashboard below. This map is entirely interactive; adjusting the toolbar on the left allows you to narrow your selection, pan, or zoom in/out. The map can be sorted by Technology Area; clicking on a location allows you to learn more about each individual project. 

Adjusting the Icon Spread Factor allows you to simultaneously view projects with the same locations. NOTE: Some of the projects, while they share a location, appear staggered to allow the viewer to show multiple projects at the same location. In those instances, as well those in which the location is marked as "Regional," the location is estimated.

Please note that the interactive map is best viewed using the Internet Explorer or Edge internet browsers.