积液水淹气井多井气举工艺设计及应用

摘要

With the increase of production time,exacerbated by the difficulty of drainage gas recov-ery.Flooded wells gradually increased.On the same site only a single well watered gas well.The gas lift truck has no sufficient air supply to work.But the single well gas lift leads to over pres-sure of the gas lift truck,in the gas gathering station with sufficient air supply through alcohol in-jection pipeline gas lift.Through the theoretical calculation of many wells in the alcohol injection pipeline flow and friction,the gas lift car exhaust end gas shunt.On the one hand,the gas lift truck exhaust pressure is to control,and on the other hand,and to ensure that a single well to meet the needs of the diversion.Using the design method to carry out the field test for 4 wells,the exhaust pressure can be well controlled,and does not lead to gas lift truck overpressure,can effec-tively cite the well liquid,to achieve the purpose of gas lift construction.The research results have important guiding significance for improving the stable production of gas wells and the late devel-opment of Daniudi Gas Fields.%随着生产时间延长,气井排水采气难度加剧,积液水淹井逐渐增多.对于同井场只有1口单井的水淹气井,气举车没有充足的气源供给而不能作业.在集气站有充足的气源供给,可以通过注醇管线进行气举,但单井气举导致气举车超压.通过理论计算多口气井注醇管线流量及摩阻,对气举车排气端气体进行分流,一方面控制气举车排气压力,另一方面保证单井分流气量达到携液要求.利用该方法对4口井开展现场试验,能够很好地控制排气压力,不会导致气举车超压,能够有效举出井内积液,达到气举施工的目的.研究成果对大牛地气田提高气井稳产及气田中后期开发有着重要的指导意义.