CCS and Power Systems
Carbon Storage - Monitoring, Verification, Accounting, and Assessment
Advanced Technologies for Monitoring CO2 Saturation and Pore Pressure in Geologic Formations: Linking the Chemical and Physical Effects to Elastic and Transport Properties
Performer: Stanford University
Project No: FE0001159
Figure 1. Resonant bar extensional wave velocity (~900Hz) vs. gas-water saturation in limestone (Cadoret et al,. 1997). Colored circles are x-ray CT images of water distribution (blue=water). Increasing water saturation leads to fine-scale gas-water mixing and low velocities (blue dots), while increasing gas saturation.
Figure 2. Time-lapse SEM images monitoring the effects of salt precipitation within the pore microstructure of Fontainebleau sandstones.