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随着油田注水开发研究工作的深入 ,为延长注水高效开发时间 ,提高采油率 ,将信息论、系统论及工程控制理论观点引入油田注采领域 ,使原来较单一的注采关系分析向复杂的多参数自动控制系统转变。应用控制论方法分析了注采系统组成、产生系统扰动的原因和反馈回路特征 ,阐明了系统自校正的原理及过程。同时分析了鄯善油田东 区三间房油层注采系统的稳定情况 ,提出了在平面上对高渗透带进行封堵 ,扩大波及面积 ,控制含水量上升 ;剖面上实施分层注水 ,扩大吸水剖面和油层的动用程度 ,平衡和提高地层压力的生产措施。结果表明 ,在开发过程中利用 Liapunov第二方法判定注采平衡的稳定性及确保注采平衡的条件 ,对发展注采系统控制理论的研究和指导油田实际注水开发生产具有重要的理论和实际意义
With the deepening of oilfield waterflooding research and development, in order to extend the effective time of waterflooding and increase the oil recovery rate, introduce the theory of information theory, system theory and engineering control into the field of oil and gas injection and production, Parameter automatic control system change. The control system theory is used to analyze the composition of injection and production systems, the causes of system disturbance and the characteristics of feedback loops. The principle and process of system self-correction are clarified. At the same time, the stability of the injection and production system in Sanfangfang reservoir in the east of Shanshan Oilfield is analyzed. It is proposed that the high permeable belt be plugged in the plane to enlarge the wave area and control the water content increase. In the section, stratified water injection and expanded water absorption profile And the degree of utilization of the reservoir to balance and improve the formation pressure of production measures. The results show that using Liapunov’s second method to determine the stability of injection-production balance and ensuring the balance of injection and production during the development process is of great theoretical and practical significance for the development of the theory of injection and production control system and for guiding the actual production and development of oilfields