Jonathan Yelton- Thesis Defense
“Geophysical characterization of the CO2 saturated Little Grand Wash Fault: insights for long-term carbon capture and storage site monitoring”
Understanding the upward migration of CO2 is critical for the assessment of long-term storage and leakage monitoring. CO2 naturally out-gasses to the surface along the Little Grand Wash fault, providing a natural analogue of a leaking Carbon Capture and Storage site. I will use p-wave and a shear-wave seismic data, and joint dipole-dipole/Wenner DC resistivity data acquired across the mapped fault traces to construct rock physics models of the fault and host rock. The data will allow me to produce interpretable models to assess the subsurface porosity distribution of the along each transect where out-gassing CO2 changes along strike of the fault and with time. With my approach, I seek to develop remote sensing methods to monitor the CO2 migration from reservoir depths to the surface. Complementary borehole geophysical data will help constrain my inversions to improve the characterization of the fault system.
Where: RUCH 103
When: Wednesday, April 29th