Maximization of Permanent Trapping of CO2 and Co-Contaminants in the Highest-Porosity Formations of the Rock Springs Uplift


State-of-the-art reservoir condition core-flooding<br/>system. Only the two-phase configuration is shown here
State-of-the-art reservoir condition core-flooding
system. Only the two-phase configuration is shown here
University of Wyoming
Website:  University of Wyoming
Award Number:  FE0004832
Project Duration:  10/01/2010 – 03/31/2014
Total Award Value:  $2,905,129
DOE Share:  $1,509,044
Performer Share:  $1,396,085
Technology Area:  Geologic Storage Technologies and Simulation and Risk Assessment
Key Technology:  Fluid Flow, Pressure, and Water Management
Location:  Laramie, Wyoming

Project Description

The project made accurate predictions for the trapping of injected mixed supercritical (sc)CO2, in the deep saline aquifer of the Rock Springs Uplift (RSU) in Southwest Wyoming. Such predictions were based on new, state-of-the-art experimental measurements of relevant flow functions that were used in a recently developed, high-performance, high-resolution simulation tool. Results of state-of-the-art laboratory experiments using core samples from the RSU were used in a physically-based dynamic core-scale pore network model that led to improved understanding of mixed scCO2 trapping mechanisms, This, in turn, allowed the identification of pore-level flow conditions under which permanent capillary trapping can be maximized, which were subsequently communicated to a high performance simulation tool. This tool allowed for geomechanical deformation of the surrounding formations, equilibrium calculations for mixed scCO2, water, and salt, and was used for uncertainty quantification using geological models.

Project Benefits

This project focused on improving the understanding of mixed supercritical CO2 storage in the Rock Springs Uplift. Better understanding of CO2 interactions with rock/brine and migration reduces uncertainty in predicting storage capacity and repository suitability. Specifically, this project determined the technical and economic feasibility of CO2 storage in the target formation by developing a regional dynamic model.

Contact Information

Federal Project Manager 
William Aljoe:
Technology Manager 
Traci Rodosta:
Principal Investigator 
Mohammad Piri:

Click to view Presentations, Papers, and Publications