摘要
根据油藏动态分析的实际需要 ,建立了考虑井筒储集和表皮效应及三种外边界条件—定压外边界、封闭外边界和无穷大边界下的油层压力分布数学模型。利用Laplace变换和Bessel函数求解出了相应的Laplace空间中的精确解 ,并对解的应用作出了较为详尽的阐述。尤其对在Laplace空间中直接进行试井分析的方法 ,指出了其具体的应用步骤 。
To meet the need of composite reservoir performance analysis, a formation pressure distribution model is developed, which takes into consideration the effect of wellbore storage, skin factor and three kinds of outer boundary conditions—constant pressure outer boundary, closed outer boundary, infinite boundary. The exact solution of the model in Laplace space is obtained by using Laplace transformation and Bessel function, and the application of the solution is discussed in detail. The method of well testing directly in the Laplace space is particularly described, and the specific procedures of its application are presented.
出处
《西南石油学院学报》
CSCD
2000年第4期76-79,共4页
Journal of Southwest Petroleum Institute
关键词
复合油气田
数学模型
Laplace空间
储层
pressure distribution, mathematical model, laplace space, performance analysis
