Trapping Mechanisms in Field Scale: Results from Nagaoka Geologic CO2 Storage Site

Geologic Storage of CO2

Dynamic imaging provides an effective way to integrate previous time-lapse data with current data in order to estimate a current model. We present two methods useful for continuous dynamic reservoir and subsurface monitoring. The first method is a stochastic method for the inversion of geophysical data. It uses the ensemble Kalman filter (EnKF) that we demonstrate using time-lapse surface seism...

Geologic Storage of CO2

Health, Safety, and Environmental Screening and Ranking Framework for Geologic CO2 Storage Site Selection

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Multi-scale Petrography and Fluid Dynamics of Caprocks Associated with Geologic Co2 Storage

Implementation of the underground storage of anthropogenic CO2 in geologic media requires containment of the CO2. The general concept for onshore, deep (> 800 m) geologic environments includes both a permeable reservoir and an overlying low permeability, high capillary-breakthrough-pressure “caprock”. Significant migration of the buoyant CO2 from the reservoir may lead to inadequate performance...

Geologic storage of radioactive waste: field studies in Sweden.

Access to a granitic rock mass in an iron ore mine in Sweden provided a unique opportunity for underground experiments related to the geologic disposal of radioactive waste. These field tests demonstrated the importance of hydrogeology and the difficulties in predicting the thermomechanical behavior of fractured granitic rocks. To characterize a site fully, measurements made from the surface mu...