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本文提出了一种分析非常规油气藏生产数据的新方法。与现有的递减曲线分析法不同,该方法非传统意义上的经验方法,它具有严谨的理论基础。采用非常规扩散模型来反映水平井体积压裂(SRV)后的动态特征。在该非常规扩散模型中,采用的是更具普遍性的构成关系来界定非均质性极强的纳米孔介质中流动的非定域特性和继承性,而不是常规的采用达西定律来界定。根据产气量与时间双对数图中的直线斜率,能够推导出流动的子扩散状态和超扩散状态。该模型的优点在于不需要对基质和裂缝的固有属性及其空间展
This paper presents a new method for analyzing unconventional oil and gas production data. Different from the existing descent curve analysis method, this method is a non-traditional empirical method, which has a rigorous theoretical foundation. Unconventional diffusion models are used to reflect the dynamic characteristics of horizontal well after volumetric fracturing (SRV). In this unconventional diffusion model, the more general constructs are used to define the nonlocal properties and inheritance of flow in highly heterogeneous nanoporous media rather than using Darcy’s convention Defined. Based on the slope of the line in the log-log plot of gas production versus time, the sub-diffusion and super-diffusion states of the flow can be deduced. The advantage of this model is that it does not require the inherent properties of the matrix and the crack and its spatial development