CCS and Power Systems

Carbon Storage - Geologic Storage Technologies and Simulation and Risk Assessment


Prototype and Testing a New Volumetric Curvature Tool for Modeling Reservoir Compartments and Leakage Pathways in the Arbuckle Saline Aquifer: Reducing Uncertainty in CO2 Storage and Permanence


Performer: University of Kansas Center for Research

Project No: FE0004566


Accomplishments


  • A pre-spud, numerical simulation model was created to evaluate flux between fault/fracture blocks. The simulation model focused on the fault block including or adjacent to the McCord-A 20H well. The model has been validated as a predictive tool by history matching individual well production history. The leases in the study area have been on production from 1937, but the principal validation is based on well tests and historical water cut performance over the period September 1990 through December 2011. The history match is not a unique solution. Several suitable matches were derived under different values for the uncertainty parameters.

  • The next phase of these models will be to analyze the effect of uncertainty on the flux between fault blocks using revised geocellular models based upon results from the McCord-A 20H formation evaluation (combination of VC analysis and results from the horizontal test boring).

  • A horizontal test boring was drilled through a VC-interpreted, fault-bounded paleokarst doline. Triple combo, borehole micro-imager, and full-wave sonic logging tools were tool pushed through the ~1,800-ft test boring. Results from the formation evaluation validate the VC-based interpretation (Figure 3). Data collected from the well allowed for physical confirmation of the presence of paleokarst features identified from volumetric curvature seismic analysis.


Project Details