水驱油田含水上升率的变化规律及其影响因素 毕业论文.doc

摘 要 含水上升规律和递减规律是水驱油田的主要规律，但目前对于两者的内在联系及含水上升规律的主要影响因素还未认识清楚。根据相对渗透率曲线和分流量方程，从理论上揭示了水驱油田含水上升率的变化规律及其影响因素，同时研究了在定产液量的条件下含水上升率和递减率的关系。结果表明:含水上升率通常随可采储量采出程度先凹形上升后转凸形上升，上升到峰值后开始下降，先凸形下降后转凹形下降，转折点的含水上升率及对应的可采储量采出程度和含水率由水油流度比、水相指数和油相指数3个参数确定；在定产液量的条件下，含水上升率和递减率的变化规律一致。认清含水上升规律和递减规律，可以更准确地预测水驱油田的开发指标。 关键词:含水上升率，分流量方程，水油流度比，水相指数，油相指数 Abstract Law of water cut increasing and decreasing law is the main law of water flooding oil field, but the main influence factors of the internal relations and water both rise regularity is not known. According to the relative permeability curve and flow equations, theoretically reveals the change law of water flooding in oil field water cut rising rate and its influence factors, and study the relationship between the amount of produced liquid conditions increased rate of water cut and decline rate. The results showed that: the rate of increase of water usually with the degree of recovery of the first concave increasing recoverable reserves after the convex rise, rise to the peak and then began to drop, the first convex to concave after falling down, water the turning point of the rate of rise and the corresponding recovery degree and water content was determined by the water oil mobility 3 parameter ratio, water index and the index of recoverable reserves of oil phase; in the liquid production conditions, variation of water rate of rise and decline rate agreement. Understand the law of water cut increasing and decreasing law, water.Flooding oil field development indexes can be predicted more accurately. Key word: Increased rate of water;Fractional flow equation;Water oil mobility ratio;Water index;The oil phase index 目录 第一章 前言 1 1.1 设计论文的目的、意义及技术要求 1 1.2 课题发展概况及存在的问题 1 1.3 本课题的指导思想 1 1.4 应解决的主要问题 2 第二章 水驱油田含水上升规律的相关介绍 3 2.1 含水上升率规律及其重要性 3 2.2 水驱油田含水上升规律的相关概念 4 2.2.1 水驱指数与吸水指数 4 2.2.2 存水率与综合含水 4 2.2.3 水驱控制和水驱动用 5 第三章 水驱油藏数学模型及水驱驱替特征曲线 6 3.1 基本假设 6 3.2 水驱油藏基本微分方程及初、边界条件 6 3.3 水驱驱替特征曲线及其应用发展 7 3.3.1 常用的水驱驱替特征曲线 7 3.3.2 水驱驱替特征曲线的应用 13 3.3.3 水驱