合理压降速率配产法在ZJ气田的应用  

Application of reasonable pressure drop rate production allocation method in ZJ gasfield

作　　者：张本艳[1] 向宇 张玉学 李凤[1] 朱婧 ZHANG Benyan;XIANG Yu;ZHANG Yuxue;LI Feng;ZHU Jing(Exploration and Development Research Institute of Southwest Oil and Gas Branch,SINOPEC,Chengdu Sichuan 610041,China)

机构地区：[1]中国石化西南油气分公司勘探开发研究院,四川成都610041

出　　处：《石油化工应用》2023年第5期29-32,共4页Petrochemical Industry Application

摘　　要：ZJ气田沙溪庙组气藏是定容封闭弹性气驱气藏,该气藏因产量任务重,严重缺乏各类动态监测资料,无法用常规方法确定气井的合理产量。本文基于流动物质平衡方程推导出了一种根据井口压降速率计算气井合理产量的方法。单井实例表明,调整气井合理产量后,稳产期从0增加至20个月。将该方法运用到ZJ气田沙溪庙组气藏实际生产中,取得良好效果,稳产井数在原有基础上增加了40%,平均稳产期增加8个月。矿场实施表明此法简便可行,能够满足气井较长时间稳产的需求。The Shaximiao formation in ZJ gasfield is a constant volume closed elastic gas drive gas reservoir.Due to the heavy production task,this gas reservoir lacks all kinds of dynamic monitoring data seriously,so it is impossible to determine the reasonable production of gas wells by conventional methods.Based on the flow material balance equation,a method of calculating the reasonable production of gas well according to the wellhead pressure drop rate is derived in this paper.A typical example of a single well shows that the stable production period is increased to 20 months after adjusting the reasonable production of the gas well.The method was applied to the actual production of Shaximiao formation in ZJ gasfield,and good results were obtained.Stable production wells increased by 40%on the original basis,and the average stable production period increased by 8 months.It is proved that this method is simple and feasible and can meet the demand of stable production for a long time.

关 键 词：气井 流动物质平衡理论 井口油压 压降速率 合理产量 

分 类 号：TE312[石油与天然气工程—油气田开发工程]