大庆石油地质与开发2018，Vol.37Issue(3)：71-77,7.DOI:10.19597/J.ISSN.1000-3754.201710023
深层火山岩气藏压裂直井复合渗流产能模型
COMPOSITE SEEPAGE PRODUCTIVITY MODEL OF THE FRACTURED VERTICAL WELL IN DEEP VOLCANIC GAS RESERVOIRS
摘要
Abstract
In order to accurately characterize the fractured well productivity in deep volcanic gas reservoirs,based on the stable seepage theory,considering the different non-linear flow characteristics within and outside the fractures of the fractured well,the composite seepage productivity model of the well was established.The research shows that the start-up pressure gradient,high-speed non-Darcy and stress sensitivity actions are the key factors of influencing the productivity,while the influence of the slippage effect is limited,with the rise of the production pressure differential,the influenced degree of the start-up pressure gradient is continuously decreased,while the ones of the high-speed non-Darcy and stress sensitivity are just on the contrary.The typical case calculation shows that with the help of the model,the calculated error between the open flow potential and actual open flow capacity is only 6％,this achievement can meet the requirements of the application.关键词
火山岩气藏/启动压力梯度/滑脱效应/高速非达西/应力敏感/产能模型Key words
volcanic gas reservoir/start-up pressure gradient/slippage effect/high-velocity non-Darcy/stress sensitivity/productivity model分类
能源科技引用本文复制引用
苑志旺,郭平,姜彬,冉启全..深层火山岩气藏压裂直井复合渗流产能模型[J].大庆石油地质与开发,2018,37(3):71-77,7.基金项目
国家科技重大专项“西非、亚太及南美典型油气田开发关键技术研究”(2011ZX05030-005). （2011ZX05030-005）
