潜山油藏油井水侵动态研究

以胜利油区某潜山油藏为例 ,考虑底水和边水 ,建立单井模型。利用数值模拟技术研究了具有边底水的双重介质油藏开发过程中油水运移规律 ;分析了基质渗透率、裂缝渗透率、裂缝密度、采油速度、打开程度等地质、工艺方面的参数对出水规律的影响 ,得到裂缝型潜山油藏含水上升主要特征 ;根据油藏地质特征、开采参数和含水率变化规律归纳得出边底水入侵的基本模式 ,为配置控水措施、改善双重介质油藏的开发效果提供了理论依据。

A study on water invasion behavior of buried hill reservoir.

Taking a buried hill reservoir of Shengli petroliferous area for example, a single well model with bottom and edge water is built, through which a numerical simulation is carried out for studying the water and oil migration rule in dual?porosity reservoir during development process. By analyzing the effect of geologic and technology parameters such as fracture permeability, matrix permeability, fracture density and recovery rate etc. on water exit rule, the main character of water cut rising is concluded. According to reservoir geologic feature, producing parameters and the variation rule of water cut, the basic pattern of the bottom and edge water invasion is summarized. The conclusions can provide a theoretical foundation for determining the control?water measures and improving the development effectiveness of such kind of double porosity reservoir.ofthebottomandedgewat