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针对裂缝与井筒连通,同时存在溶洞和裂缝、基岩和裂缝之间发生拟稳态窜流的三重介质,建立了这类三重介质油藏的斜井试井解释模型,采用汇源叠加等方法求得顶底封闭无限大三重介质油藏斜井在拉氏空间中的井底压力响应,绘制了相应的典型无因次压力曲线版图,分析了顶底封闭无限大三重介质油藏斜井的渗流规律,对其压力特征曲线进行了流动阶段的划分,并讨论了影响压力特征曲线的各种因素。所得的结果有利于提高对三重介质油藏斜井渗流规律的认识,为合理地运用斜井开发三重介质油藏提供理论依据。
In view of the fact that the fractures are in communication with the wellbore, there exist triplets of karst caves and fissures and quasi-steady state channeling between the bedrock and the fractures, a well test interpretation model for such a triple-media reservoir is established. Bottom-bottom pressure response of incline wells in a closed three-dimensional infinite medium reservoir with closed-end in the Laplace space was plotted. Corresponding typical dimensionless pressure curves were plotted, and the seepage of top-bottom confined infinity triple reservoir was analyzed Law, the pressure characteristic curve of the flow stage of the division, and discusses the various factors that affect the pressure characteristic curve. The results obtained are helpful to raise the understanding of the seepage law of inclined wells in the triple media reservoirs and provide theoretical basis for the rational use of inclined wells for the development of the triple media reservoirs.