How do you approach wet gas flow measurement in oil and gas production?

Wet gas measurement addresses gas with entrained liquid (GVF >90%). Approaches: over-reading correction using correlations (Murdock, Chisholm, de Leeuw) for differential pressure meters, Venturi with tracer injection, separation and individual phase metering, and multiphase flow meters. Design considerations: Lockhart-Martinelli parameter for flow regime, liquid loading variations, pressure and temperature effects on phase equilibrium. Emerging technologies: dual-energy gamma densitometry, tomographic sensors, and Coriolis meters with multiphase algorithms. Validate against test separator or sampling during commissioning. Uncertainty significantly higher than dry gas (typically 5-10% vs <1%).