底水油藏中水平井的水锥问题

在不变流线的假定下研究底部注水时底水油藏中水平井的水锥问题。利用特征线方法，求得了描述两相流体二维渗渗流的拟线性双曲型偏微分方程的解，给出了水锥的形成和发展以及水平井水淹的全过程。本文的结果可看作是著名的Ｂｕｃｋｌｅｙ──Ｌｅｖｅｒｅｔｔ理论在二维情形下的推广。

The Water Cone Problem of a Horizontal Well in Bottom Water Reservoir

Basing on the assumption of fixed streamline, this paper studies the water cone problem of a horizontal well in bottom wate reservoir when water is injected into the bottom.The analytical solution of the quacilinear hyperbolic partial differential equation for the two dimensional flow of the two phase fluid has been obtained by using the method of characteristic. The generation and development of a water cone as well as the whole water out process of the horizontal well have been presented. This paper may be regarded asthe popularization of the famous Buckley-Leverett Theory under the condition of two dimension.