Experiment III was conducted using two separate bead packs in one core holder. These bead packs were aligned in series, separated by a flow distributor with nylon screens. The bottom bead pack was 44.80 mm long and consisted of glass beads. This bead pack will be referred to as the glass bead pack. The top bead pack was 47.39 mm long and included two types of beads, glass beads and oil‐wet, coated‐glass beads. The bead volume fraction in this pack consisted of 50% glass beads and 50% coated‐glass beads. This sample will be referred to as the glass/coated‐glass bead pack.
