Supercritical CO2 - Brine Primary Drainages (40-60C, 8-12 MPa)

This project includes porosity images and steady-state water saturation images at 8 different positions (distance from inlet are 4, 12, 20, 28, 37, 44, 52 and 59 cm) along a 60-cm long Berea sandstone core (45 mD) during three primary drainage experiments conducted at 40C & 12 MPa, 40C & 8.3 MPa, and 60C & 12 MPa.

The drainage experiment starts with injecting 1:1 volume ratio of CO2 and brine. After steady state is reached, the water fractional flow (fw) is lowered. This is repeated until 100% CO2 injection. Each drainage experiment has three steps with fw of 0.5, 0.1 and 0.