摘要
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 。
During the process of waterflooding in oilfield,injection production system was changed from simple injection production to complex multiparameter autocontrol system with the introducing of information theory, and was analysed system theory and cybernetics of engineering. The component of injection production system,reason of engendering interfere in system and character in feedback loop clarified the principle and process of autoproofread in system by basing on method of cybernetics. Judging the stability and condition of balanced offtake by using the second theory of Liapunov will be of very importance for researching of injection production system and development of production.
出处
《西北大学学报(自然科学版)》
CAS
CSCD
北大核心
2000年第3期251-255,共5页
Journal of Northwest University(Natural Science Edition)
关键词
控制系统
闭环控制
注水采油系统
采油率
control system
injection-production system
loop control
balanced offtake
stability