摘要
通过低渗透油田试井技术的研究可以为低渗透油田开发提供大量有用信息,对优化调整低渗透油田开发方案具有指导意义。在详细研究前人对低渗油藏渗流特征认识的基础上,提出了困扰低渗油田试井解释的三大难题:交接面存在附加阻力、存在启动压力梯度及指数型压力梯度的试井模型及其解析解,并给出了试井理论曲线特征,为低渗透油田试井资料的解释及产能评价提供了技术手段。并用实例进行了验证,证实了该技术的实用性。
Study on well testing technique for low permeable oil field can provide a large amount of information for low permeable oil field development,and can direct optimizing and adjusting development plan.Based on previous study on flow characteristics of low permeable reservoir,this paper proposes 3 challenges for well testing interpretation of low permeable reservoir: extra resistance existing on conjoining face,well testing interpretation model of starting pressure gradient and component pressure gradient.Then it gives theoretical curve characteristics of well testing,providing technical method for well testing data interpretation and productivity evaluation for low permeable oil field.It verifies the adaptability of this method by using some cases.
出处
《大庆石油地质与开发》
CAS
CSCD
北大核心
2006年第1期64-66,共3页
Petroleum Geology & Oilfield Development in Daqing
关键词
低渗透油藏
交接面
附加阻力
启动压力梯度
指数型压力梯度
low permeable
reservoir
conjoining face
addition pressure
starting pressure gradient
component pressure gradient
