... production monitoring liquid entrainment correlation artificial intelligence standard deviation reservoir surveillance bhr group 2013 upstream oil & gas flow pattern pressure gradient correlation equation mechanistic model relative performance index production control gomez model...

...-Normal model is correlated by two empirical relationships developed for mean slug length and slug length standard deviation. Based on experimental observations, the approach of critical liquid level (instead of critical liquid volume) was adopted as the slug initiation criterion at the lower elbow...