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分布体积震源方法用来解决瞬态和拟稳态下流量计算问题。该方法的基本结构单元是将具有闭合外边界的方形油藏的分析反应近似计算成一个瞬时体积震源,从而形成一个直线体。这种解决方法也可提供一个连续震源反应的试井导数,同时,也能通过对时间积分来提供一个连续震源反应的压力。为了生产上的应用,我们将这些结果整理成瞬态、拟稳态产能的指数形式。这种新方法已经在一些简单形式的油气井试井结果的对比中得到证实。这些结果是对现存模型的一个很好的验证。这种方法的主要优点是可以应用到复杂的油气井/裂缝井上,采用一种快速、稳键、可靠的方法来进行压力瞬时分析,同时对油气井产能进行预测。
Volumetric focal distribution method is used to solve the transient and quasi-steady-state flow calculation problems. The basic structural element of this method is to approximate the analytical response of a square reservoir with a closed outer boundary to an instantaneous volumetric source, forming a straight line. This solution also provides a well-test derivative of a continuous source response, while also providing a continuous source response pressure by integrating over time. For production applications, we collate these results into exponential forms of transient, quasi-steady-state capacity. This new method has been confirmed in some simple forms of well test results. These results are a good validation of the existing model. The main advantage of this approach is that it can be applied to complex well / fractured wells and a fast, robust and reliable method for transient pressure analysis while predicting well productivity.