摘要
在砂岩油藏的水驱动态分析和预测中,水驱特征曲线已经得到了广泛的研究和应用。利用裂缝性砂岩油藏相对渗透率的特殊形式,根据双重介质两相渗流理论推导出了裂缝性砂岩油藏水驱特征曲线的解析表达式,并计算了相应的理论曲线。物理模拟、数值模拟以及现场实例证实,与常规砂岩油藏不同,裂缝性砂岩油藏的水驱特征曲线在高含水期会出现上翘现象,最后根据这种特殊的现象为裂缝性砂岩油藏水驱曲线的应用提出了建议。
In the analysis and prediction of water-drive performance of sandstone reservoirs, its characteristic curves are widely used in study and application, the special forms of fractured sandstone reservoir permeability are used to derive analytical expressions for its characteristic curves of sandstone reservoirs, and the responding theoretical curves are calculated. It is demonstrated by physical-mathematical simulations and application examples that the fractured sandstone reservoir is different from conventional reservoir, its characteristic curves are updip, by which propose is made for the application of water-drive curves of the fractured sandstone reservoirs.
出处
《石油天然气学报》
CAS
CSCD
北大核心
2005年第5期626-628,共3页
Journal of Oil and Gas Technology
基金
国家"十五"重点科技攻关项目(2003BA613-07-05)
中国石油天然气集团公司石油科技中青年创新基金项目(04E7029)
关键词
裂缝性砂岩油藏
水驱特征曲线
相对渗透率曲线
高含水期
物理模拟
数值模拟
fractured sandstone reservoir
characteristic curve of water-drive
curve of relative permeability
high water-cut stage
physical simulation
numerical simulation
