Gas-Liquid Metering Using Pressure-Pulse Technology

Abstract

Abstract The Pressure-Pulse multiphase metering method is described. The combined effects of water-hammer and speed of sound in gas-liquid mixtures are used to measure the mass flow rate. Through continuity the mass flow rate at the wellhead is the same as the mass flow rate downhole and at standard conditions, making the Pressure-Pulse method suitable for routine production testing and allocation measurements. The method is highly repeatable. Offshore testing of the water-hammer effect and the speed of sound in gas-liquid mixtures, demonstrates the feasibility of the Pressure-Pulse method in petroleum production operations.