Experimental Study and Model Evaluation on Continuous Liquid Removal
in Horizontal Gas Well

doi:10.11885/j.issn.1674-5086.2014.01.22.01

Abstract

Abstract:

Abstract：The continuous fluid removal of the horizontal gas well is more difficult than that of the vertical wells. To study
the problem of the continuous fluid removal of the horizontal gas well，we have simulated the gas-liquid two phase flow of
the horizontal gas well with the visual gas-liquid conduit flow experimental device. This device is made up of vertical tubes，
which is six meter high，horizontal tubes at ten meters，inclined tubes at six meters long. Through experiments，we found that，
among the vertical，horizontal and inclined tubes，the capability of liquid-carrying of inclined tubes is the worst. So，the critical
liquid-carrying velocity of the inclined tubes can be used as the velocity of horizontal gas well. Droplet and film model of the
inclined tubes are now widely accepted. We observed the phenomena of liquid-carrying and test the critical liquid-carrying
velocity in different inclined angles，which are from 28° to 72° The experiments show that liquid in the inclined tubes is carried
by film form，not droplet form. From the mechanism analysis，the film model is more reasonable. Contrast the test values with
the calculated values of film and droplet model，we can also find that film model is more reasonable.

Key words: Key words：horizontal gas well, inclined tube, continuous removal, simulation experiment, film model, droplet model

Wang Qi1, Li Yingchuan1，2, Wang Zhibin1, Cheng Jinjin2. Experimental Study and Model Evaluation on Continuous Liquid Removal
in Horizontal Gas Well[J]. 西南石油大学学报(自然科学版), DOI: 10.11885/j.issn.1674-5086.2014.01.22.01.

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