2D Model Study of CO₂ Plumes in Saline Reservoirs by Borehole Resistivity Tomography

Figure 1

Experimental P-wave velocity (𝑣_𝑝) and electrical resistivity (𝜌) of sandstone reservoir versus brine saturation (𝑆) showing 𝜌 far more sensitive to 𝑆 than 𝑣_𝑝 [4].