摘要
研究了大量的底水油藏开发资料,发现底水油藏中存在的隔板对该油藏的开发有很大的影响。隔板存在时,临界产量发生了变化,Dupuit临界产量公式已无法应用于生产实际。对底水油藏的隔饭进行了分类。按在油藏中所在位置可分为:油藏内部隔板,油藏外部隔饭、油水界面上隔板和油水界面下隔板;按形成机制可分为:岩性隔扳、物性隔饭和流体隔板。提出了全隔板模式和半隔板模式.给出全隔板模式下的单井临界产量计算公式相计算图板.并结合实例进行了计算,从而解决了带隔板底水油藏油井长期生产而不见水的问题。提出的方法能指导底水油藏油井合理工作制度的建立,研究油藏隔板形态及其作用,并能用来指导人工隔板的设置问题。
Through analysis of a large ammount of data in bottom water reservoir, we consider that barriers in bottom water reservoir have a great impair on oil production. Critical production rate has been affacted by barrier, so critical production rate formula of Dupuit cannot be used in production. In this paper, barriers in bottom water reservoir have been classified. They are classified by their location in reservoir, i. e. inside and outside reservoir, above and under oil water interface. According to their formation, they can be classified into barriers with lithic and physical property of rock and fluid barriers. Whole barrier pattern and half barrier pattern are put forward, calculating formula and plate of critical production rate of single well in whole barrier pattern are given, and calculation example is provided. The problem of no water cut of oil well production for a long time in bottom water reservoir with barrieris is solved. The method can give reasonable work system of oil well in bottom water reservoir, study the shape and action of reservoir barrier and direct the establishment of artifical barrier.
出处
《大庆石油学院学报》
EI
CAS
北大核心
1995年第3期22-25,共4页
Journal of Daqing Petroleum Institute
关键词
底水油藏
隔板模式
产量公式
计算
油藏
bottom water reservoir, barrier pattern, semi-barrier pattern, the formula of critical production rate, calculating plate