Gas flow rate measurement technologies in the oil and gas industry have evolved over the years with the use of sophisticated techniques of analysing signals to measure fluid flow in pipes. These techniques are accompanied by cost implications and accuracy dependence. This paper focused on the...

The identification of gas-liquid flow regimes for co-current upward flow in a vertical pipe is investigated using Polynomial regression (PR) and Linear Discriminant analysis (LDA) on the response from a non-intrusive optical sensor. The average voltage and associated standard deviation can be...