Theme 1: Reliable Capacity Estimation [PDF]

The goal of this theme is to improve techniques for estimating storage capacity to account for the major impact of the interaction of multiphase flow, boundary conditions, maximum pressure, and geomechanics. Capacity estimation is one of GCCC's strengths, and we have continued to strive to develop more sophisticated and accurate methods of estimation, as appropriate, for various storage environments.

Structure map of the top of model interval

  • Generated southern Georgia, Permian Basin, and upper Texas coast Miocene static regionalcapacity estimates.
  • Used data from the petroleum system of the Gulf of Mexico as inputs for modeling
    engineered, anthropogenic CO2 and dynamic capacity.
  • Validated geomechanical models using dense datasets from above-zone monitoring intervals (AZMI).
  • Generated code (EASiTool) that incorporates multiphase flow, boundary conditions, and geomechanics.
  • Evaluated the confining system (top seal and fault seal) of the upper Texas coast Miocene section.
  • Collected three high-resolution 3D (HR3D) shallow seismic (aka “P-Cable”) datasets to evaluate the overburden section of future potential geosequestration sites in the upper Texas coastal Miocene section.

Reliable Capacity Estimation Subthemes
Closure and fetch area polygons plotted with subsurface structure of the top of the model interval





The GCCC seeks to apply its technical and educational resources to implement geologic storage of anthropogenic carbon dioxide on an aggressive time scale with a focus in a region where large-scale reduction of atmospheric releases is needed and short term action is possible.