边水驱油藏水平井合理位置的确定方法研究

顶底不渗透边水油藏中水平井的合理位置是确保水平井高产稳产、延长无水采油期的关键所在。利用镜像反映及势函数的叠加原理，在获得顶底不渗透边水油藏中任意一点的势函数后，得到了顶底不渗透边水油藏中水平井底势差和水平井的产量方程，由此研究影响水平井产量及见水时间的因素，通过研究获得了顶底不渗透边水油藏中水平井的合理位置，为水平井开采具有顶底不渗透边界的边水油藏的优化设计提供了理论基础。

Method Research of Determining Optimum Well Location for Horizontal Well in Edge-Water Drive Reservoir

Horizontal well's reasonable location is the key to keep high and steady production and to prolong producing time without water in edge water drive reservoir with closed boundary vertically. Using mirror effect and superposition principle of potential function, this paper derives the potential function at arbitrary point in edge water drive reservoir with closed boundary vertically and acquires the potential difference in horizontal well bore and well's production equation. Then it researches the factors affecting production, critical production and water breakthrough time and acquires the optimum well location for horizontal well in edge water drive reservoir with closed boundary vertically. It provides the theory base for developing reasonably edge water drive reservoir with closed boundary vertically with horizontal well.