Foam breakup in inlet cyclones

Foam breakup in an inlet cyclone is studied utilizing a 0.025 m diameter Foam Characterization Rig (FCR) skid. Aqueous foam is used in the experimental program utilizing Drill Foam F-450 and SI-403 with the same surfactant concentration of 0.01 vol/vol. The foam generated with Drill Foam F-450 is more stable and requires higher g-force for foam breakup than the one generated with the SI-403. The foam half life time is proposed for foam characterization, as it is easy to measure and represents a key decay characteristic of the foam.