| with the development of Jingbian gas field, the gas well productivity has gradually decreased. At the same time, the liquid lifting ability also has gradually dropped in gas well with producting water. So more and more gas wells have wellbore liquid loading, which definitely impairs deliverability of the gas wells. In this paper, against the shut-in wells with liquid loading in Jingbian gas field, it bases on the bottom as node point to analyse some factors, which influence the point. We used pressure drawdown equation to analyse the model of critical liquid loading flow when the wells have high gas fluid ratio or low gas fluid ratio. Based on some producting water analyse about the shut-in wells with liquid loading, we received a judgement standard about wellbore liquid loading. We also evaluated and optimized reproduction technology in jingbian gas field. And we proposed three improving ways of wellhead upload liquid, evaluated improving results. Especially we suggest more easier method for calculating wellhead blowout parameters. |
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