| 摘要 |
A method of and apparatus for monitoring fluid flow passing within a pipe is provided. The method includes the steps of: a) providing a flow pressure value and a flow temperature value for the fluid flow within the pipe; b) providing a fluid flowmeter operable to be attached to an exterior of the pipe; c) providing one or more of an additional flow related measurement (e.g., DP, SOS, etc.); d) providing a processor adapted to include an equation of state model for the pressure, volume, and temperature properties for the fluid flow, and further adapted to receive composition data values for the fluid flow, the flow pressure value, and the flow temperature value, and the flow velocity signals from the flowmeter; and e) determining a volumetric flow rate of one or more phases of the fluid flow. |
| 主权项 |
1. A method of monitoring a single phase fluid flow passing within a pipe, the method comprising the steps of:
providing a flow pressure value and a flow temperature value for the fluid flow within the pipe; determining a momentum value for the fluid flow using a DP meter; determining a velocity value of the fluid flow using a SONAR fluid flow meter; determining a measured density value of the fluid flow using the determined momentum value and the determined velocity value; and determining a volumetric flow rate of the fluid flow using a processor adapted with an equation of state model for the fluid flow to calculate a density value for the fluid flow given the flow pressure and temperature values, and adapted to compare the measured density value and the calculated density value to determine an error value, and adapted to determine whether the error value satisfies a predetermined condition, and if the condition is not met, the processor is adapted to iteratively determine an updated error value using an adjusted calculated density value, until the updated error value satisfies the predetermined condition. |
