页岩气水平井生产动态模型及其应用  

Dynamic Production Model of Horizontal Shale Gas Wells and Its Application

作　　者：张楠 邓又文 严仁田 孟口也 ZHANG Nan;DENG Youwen;YAN Rentian;MENG Ye(Yunnan Shale Gas Exploration and Development Co.,Ltd.,Yunnan Energy Investment Co.,Ltd.,Kunming,Yunnan 650000,China;Development Division,PetroChina Southwest Oil and Gas Field Company,Chengdu,Sichuan 610000,China;Shale Gas Project Department,PetroChina Great Wall Drilling Engineering Company,Neijiang,Sichuan 641000,China)

机构地区：[1]云南能投云南省页岩气勘探开发有限公司,云南昆明650000 [2]中国石油西南油气田公司开发事业部,四川成都610000 [3]中国石油长城钻探工程公司页岩气项目部,四川内江641000

出　　处：《西安石油大学学报（自然科学版）》2024年第5期27-34,共8页Journal of Xi’an Shiyou University（Natural Science Edition）

基　　金：国家科技重大专项“页岩气气藏工程及采气工艺技术”(2017ZX05037-001)。

摘　　要：针对WY区块页岩气井产量递减规律、地层压力动态不明确等问题,以页岩气藏物质平衡方程为核心,考虑应力敏感、基质收缩、多尺度孔隙渗流效应等影响因素,建立了页岩气藏单井生产动态模型;通过对区块内145口气井生产动态历史拟合,校正并统计出适用于本区块气井的模型地质参数。研究表明,模型计算结果与实际生产数据拟合效果良好,符合率达83%,可用于研究地层压力变化与气井生产动态;根据典型井模拟得到的气藏地质模型参数具有较高的适用性,极大提高了本区块气井的拟合效率与效果;对比模型计算结果与实际生产数据,可辅助诊断页岩气井生产中存在的问题,为措施调整提供参考依据。In order to clarify the production decline law and formation pressure dynamics of shale gas wells in WY block,a single well production dynamic model of shale gas reservoir was established with the shale gas reservoir material balance equation as the core,considering factors such as stress sensitivity,matrix shrinkage,and multi-scale pore seepage effect.By fitting the dynamic production history of 145 gas wells in the block,the geological parameters of the model applicable to the gas wells in this block were statistically calculated.The application results show that the calculated results using the model are in good agreement with the actual production data,with a compliance rate of 83%,and the model can be used to study the changes in formation pressure and the production performance of gas wells.The geological parameters of the model obtained from simulation of typical wells have good applicability,improving the fitting efficiency and effectiveness of gas wells in this block.Comparing the calculated results using the model with actual production data can assist in diagnosing problems in shale gas well production and provide a reference basis for adjusting measures.

关 键 词：生产动态 数值模拟 物质平衡 页岩气水平井 

分 类 号：TE328[石油与天然气工程—油气田开发工程]