Comparative Study of Carrying Liquid Gas Model and Field Experimental Verification

Research the causes and conditions of gas well load-up is very important to prevent gas well load-up.Produced liquid phase with natural gas from a reservior occur,which will accumulate in the bottom of the well over time when the transporting energy is not high enough.Thus the liquid accumulation leads to additional hydrostatic pressure on the reservoir,resulting in a continued reduction of available transportation energy and affecting the production capacity.So it is key to calculate gas well load-up accurately,which is important to adopt feasible means to work out problems.Currently Min LI model and Turner model are applied to predict the gas well load-up for domestic,and it has been proved that the first model calculated out bigger values,the later got smaller.In this paper,the ways from the continuous fluid model portability principle,evaluating its application conditions and making comprehensive comparison.The study shows current models hold that it is gas well critical rate of flow when liquid droplet is motionless,however it is not agree with actual conditions,so new model is proposed,the last example to demonstrate the introduction of the scene.