Gas-water flow in carbonates

4 PV and 8 PV of gas was injected at the flow rate of 0.005 mL/min, corresponding to gas flooding 1 and gas flooding 2 respectively. Then, the gas flow rate was increased to 0.01 mL/min, and the sample was scanned after 4 PV (gas flooding 3) and 12 PV (gas flooding 4) gas flloding. Finally, the gas flow rate was increased to 0.02 mL/min, and the gas water distribution did not change after 33 PV gas flooding (gas flooding 5). The brine was injected at the flow rate of 0.01 mL/min, and the first water flooding image was obtained at 0.01 MPa of pore pressure. Then the pore pressure was gradually increased to 3 MPa, 4 MPa and 5 MPa, respectively corresponding to water flooding 2, water flooding 3, water flooding 4.

Segmented

No

Voxel length (x, y, z)

3.97723, 3.97723, 3.97723

Sample

View Sample: Fractured carbonate