摘要
通过引入"特殊传导率"考虑非封闭断层的影响,建立了存在一条部分连通断层和两条以不同角度交叉的部分连通断层边界的试井解释新模型。先求得实空间内未考虑井筒储集和表皮效应的井底压力响应函数,通过Laplace数值变换将实空间的解变换到拉氏空间,然后运用Duhamel原理加上井筒储集和表皮效应,通过Stehfest数值反演得到实空间考虑井筒储集和表皮效应的压力响应函数,利用计算机编程绘制了相应的典型曲线并对曲线的影响因素进行了分析。
Considering the influence of non-closed fault by introducing 'specific transmissibility ratio',a new well testing interpretation model containing a partially communicating fault and two intersecting leaky fault with different angles has been established.Firstly,analytical solutions without consider wellbore storage and skin factor have been obtained,and through Laplace numerical transform,the real space solution is changed to Laplace space.Then,using Duhamel principle to add wellbore storage and skin factor,and through the Stehfest numerical inversion,real space transient pressure behavior with considering wellbore storage and skin factor is obtained,and type curves are plotted and various factors which influence the transient pressure behavior are also discussed.
出处
《油气井测试》
2017年第4期7-11,共5页
Well Testing
基金
国家科技重大专项"海上稠油高效开发新技术"(2011ZX05024-004)
中国海洋石油有限公司综合科研"海上多层稠油油藏化学驱交替注入技术研究"(YXKY-2014-ZY-03)内容
关键词
部分连通断层
交叉断层
特殊传导率
试井模型
Laplace数值变换
partially communicating fault
intersecting fault
specific transmissibility ratio
well testing model
Laplace numerical transform