This work demonstrates the artificial neural network (ANN) ability for predicting slug liquid
holdup (H LS), using 2525 measured points from 20 experimental studies. Six variables …

This study investigates the effects of oil viscosity, pipe diameter, and pipe inclination angle
on drift velocity. Experiments were conducted for medium viscosity oils using a 0.0508-m ID …

The effect of high oil viscosity on upward two-phase gas-oil flow behavior in vertical pipes
was experimentally and theoretically studied. A total of 149 air-high viscosity oil and 21 air …

Heavy oil makes up a major portion of the world's total oil resources. The high viscosity of
heavy oil poses great challenges for its production and transportation through wells and …

The slug bubble velocity is one of the most important closure relations in multiphase flow
models, and has been studied extensively for decades. Available models and correlations …

Gas–liquid two-phase flow is commonly encountered in the oil industry, especially in
transport pipelines. Thus, the correct prediction of operational parameters such as void …

This study attempts to address the unavailability of mechanistic model for pseudo-slug flow
and the limitation of upscaling studies of multiphase flow at elevated pressures. Pseudo-slug …

The phenomenon of gas–liquid two-phase fiow in inclined systems, although not as
common as horizontal or vertical fiow, is of great practical significance in several …

This book provides in two parts a summary of three decades of pioneering research
conducted by Professor Afshin J. Ghajar and his students at Oklahoma State University on …

The effect of downward and upward pipe inclinations on flow characteristics for high
viscosity oil-gas two-phase flow was experimentally studied. 400 experimental tests were …