Statistical analysis about liquid holdup of slug flow in horizontal pipelines;

An experimental investigation on pressure and liquid holdup of severe slugging in pipeline-riser systems;

Analysis of influential factors of drawdown and liquid holdup in multiphase conduit flow;

This paper deeply studies the model of the Beggs-Brill liquid holdup,which is widely used in engineering design of the gas-liquid two-phase flow in pipeline.

Experimental data show that for different fluids the liquid holdup in liquid loading flow decreases logarithmically with the increase of the non dimensionless gas flux defined as the ratio of gas flux to critical flux.

Liquid holdup and pressure drop calculated by the model fit well with experimental data.

The pressure signal is measured with a pressure transducer,the liquid slug holdup signal measured with a parallel electronic-conductance probe.

The experimental study on average holdup in multiphase pipelines with low loads of liquids was conducted on a large multiphase flow loop.

In high angle wells,calculating holdup of multiple phase flow is always a difficult technique problem,the judgment of flow regime and flow pattern is the main effect on calculating the holdup.

The pressure drop and liquid holdup were observed and determined in cool condition.

The regularities on the change of pressure drop, liquid holdup, flow regimes with gas and liquid velocity were investigated in cool condition,which was helpful to the mass transfer research and reactor model development.

The liquid holdups and effective wetted areas of 4 types of structured packing were simulated by the model and validated by relevant experiments.