The 3-phase separator is an instrumented vessel that separates well effluent into three phases—oil, gas, and water—for well testing.
3 phase separator - test separator
R1126 Horizontal 3-Phase 96″ x 18′ @ 1440 PSI Separator – Roska DBO Process Equipment
Three Phase Separator 3 Phase Test Separator
Design and Performance Simulation of 3 Phase Separator – Front End Engineering Consultancy
How Two Phase and Three Phase Separators Work? - Boostrand
Horizontal Three Phase Separator Part 1 - Oil and Gas Separator
2 & 3 Phase Separator Vessels
36″ X 10′ 1440 PSI Horizontal Separator (3-Phase)
Several Types of Three-Phase Separator