APPARATUS AND METHOD OF MEASURING COMPONENT CONCENTRATIONS OF NONHOMOGENEOUS MIXTURES IN MULTIPHASE FLOWS USING NEAR-INFRARED FILTER PHOTOMETRY APPARATUS AND METHOD OF MEASURING COMPONENT CONCENTRATIONS OF NONHOMOGENEOUS MIXTURES IN MULTIPHASE FLOWS USING NEAR-INFRARED FILTER PHOTOMETRY

摘要

Near- Infra red (NIR) filter photometry is used to calculate component concentrations in multiphase flows. The disclosed methodology adapts the Beer-Lambert law for nonhomogeneous immiscible mixtures (such as oil and water) by modeling the fluid layer as a nonhomogeneous distribution of its components and deriving a mathematical relationship between measured absorbances, component path lengths, and non-homogeneity factors. The methodology is integrated into a multi-channel filter photometer to measure phase concentrations in oil-and-gas pipelines.