特低渗透油井层间干扰分析  

Analysis of Interlayer Interference in Ultra-low Permeability Wells

作　　者：鲁艳峰[1,2] 李军亮[1,2] 

机构地区：[1]长江大学石油工程学院,湖北武汉430100 [2]CNPC采油采气重点实验室长江大学研究室,湖北荆州434023

出　　处：《石油天然气学报》2014年第9期121-123,7,共3页Journal of Oil and Gas Technology

基　　金：国家自然科学基金项目(61170031);教育部博士点基金项目(20114220110001)

摘　　要：在特低渗透油藏压裂井产能预测模型的基础上,建立了两层油藏油井合采和单采的向井流动态预测模型,考察层间距、地层压力和含水率等3个参数变化对产量的影响。结果表明:层间距、含水率以及地层压力3个因素对产量增加量都存在影响,其中影响程度最大的是地层压力,在所研究的地层渗透率和地层压力范围内,层间距在400m以内的储层都不需要采用分层开采的方式。Based on productivity forecasting model of fractured wells in ultra-low permeability reservoirs,an IPR forecasting model of two layer commingled wells and single production well was established,it was used to investigate the effects of distance between pay zones,reservoir pressure,water-cut and other parameters.The results show that distance between pay zones,reservoir pressure and water-cut have some influence on oil production,and reservoir pressure is the most important factor.Within the range of studied reservoir permeability and reservoir pressure,separated layer production is not needed in the reservoirs with interlayer distance less than 400 m.

关 键 词：层间干扰 层间距 地层压力 含水率 合采 分采 

分 类 号：TE348[石油与天然气工程—油气田开发工程]