王家航;王树平;王晓冬;董文秀;

• 1:中国地质大学(北京)能源学院

• 2:中国石化石油勘探开发研究院海相油气藏开发重点实验室

摘要(Abstract)：

基于点源函数理论和边界元思想,建立一种可用于致密油藏直井体积压裂改造非稳态压力分析的半解析模型。模型考虑改造区与未改造区储层非均质性的影响,在均质条件下与解析解进行对比与拟合,并应用已建立的模型对改造区与未改造区渗透率差异性、体积压裂改造程度、改造面积和形态、主裂缝长度及导流能力等参数进行讨论。结果表明:随着改造区内渗透率的增大,压力损耗减小,受改造区面积的影响,单一提高改造区的地层渗透率对整体压力影响较小;相同的储层改造体积情况下,有效裂缝体积较大的开发效果最好。与常规压裂相比,体积压裂井的开发效果主要受主裂缝长度的影响而非导流能力。

关键词(KeyWords)：点源函数;半解析;矩形致密油藏;储层改造;渗透率差异性;导流能力;裂缝半长

Abstract:

Keywords:

基金项目(Foundation):国家自然科学基金项目(51674227)

作者(Author):王家航;王树平;王晓冬;董文秀;

Email:

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