深层产水气井井筒压力预测研究  

WELLBORE PRESSURE PREDICTION OF DEEP WATER PRODUCTION GAS WELL

作　　者：张仕强[1] 李祖友[1] 周兴付[1] 

机构地区：[1]中石化西南油气分公司川西采气厂

出　　处：《钻采工艺》2010年第4期28-31,137,共4页Drilling & Production Technology

基　　金："十一五"国家科技支撑计划项目;编号:2006BAB03B07

摘　　要：井筒压力计算是气井动态分析的重要内容,川西须二段气藏深层气井具备高温、高压、产地层水的生产特征,井筒压力的预测是该气藏动态分析急需解决的难题之一。为此,采用5种常用的气液两相管流模型,对川西气田须二段气藏6口气井进行了9井次的井筒压力计算,并将结果与生产测井的实际资料进行了对比分析。结果表明,常用的H-B模型和M-B模型具有较高的预测精度,基本能满足现场工程计算的需要,在低水气比条件下,H-B模型具有更高的计算精度,在高水气比条件下,M-B模型具有更高的计算精度。It's very important to predict wellbore pressure based on the production data of gas well. The wellbore pressures of nine wells were calculated by using five common gas-liquid two phase pipe flow models,and contrasted the results with actual testing data. The results showed that H-B and M-B model have higher prediction precision for the deep wells in Chuanxi Xujiahe formation gas reservoir,and can satisfy the need of field engineering calculat-ing. When water-gas ratio is lower,H-B model has higher calcu-lating precision,when water-gas ratio is higher,M-B model has higher calculating precision.

关 键 词：深井 压力预测 两相管流 模型对比 

分 类 号：TE332.1[石油与天然气工程—油气田开发工程]