(毕业论文)低渗透有水气藏生产动态分析方法研究.doc

(北京) CHINA UNIVERSITY OF PETROLEUM 毕 业 设 计 低渗透有水气藏生产动态分析方法研究 院系名称： 石油天然气工程学院 专业名称： 石油工程 学生姓名： 学 号： 指导教师： 完成日期 201 年 6 月 14 日低渗透有水气藏生产动态分析方法研究 摘 要 有水气藏生产特征非常复杂，有水气藏在开发过程中出水后，会致使气井水淹，甚至停产，大量天然气滞留在地下，平均采收率仅为40%-60%。 本文对低渗透有水气藏的动态分析方法及气井产水机理进行调研，分析气井产水的主要影响因素，提出有水气藏的气井生产指标的变化规律。阐述了常规气藏物质平衡通式的建立与简化、水驱气藏的早期识别方法以及影响气井产水的主要机理、水驱气藏的储量计算与动态预测、天然水侵量的计算方法。在上面研究基础上，结合产能方程、井筒内流体力学相关原理对气藏进行产能评价和配产。对榆37井区进行了实例分析。该文的研究成果对有水气藏的高效合理开发有一定的指导意义。 关键词：低渗透有水气藏 气井产水 水侵识别 产能评价 Study on Low-permeability Gas Reservoir water Production Performance of dynamic analysis Abstract Water production characteristics of gas reservoirs are extremely complex, there is water hidden in the process of developing the water, the gas could result in flooding, or even stop production, a large number of stranded natural gas in the ground, with an average recovery of only 40% -60%. In this paper, low-permeability gas reservoirs with water and the dynamic analysis of the mechanism of gas well production water research, analysis of gas production of the main factors of water, the gas reservoir of water gas production targets of the change. On conventional gas reservoir material balance and simplify the establishment of general formula, water-drive gas reservoir, as well as the impact of early identification methods of gas production of the main mechanism of water, water-drive gas reservoir and the reserve calculation to predict the volume of natural water influx calculation. Based on the above study, combined with productivity equation, wellbore fluid mechanics related to the principle of the gas reservoir evaluation and allocation of production capacity. 37 wells on the elm the case study areas. The research results of the gas reservoir of water efficient rational development of guiding significance to a certain extent. Key words: Low-permeability gas reservoir water Gas well production water Identific