摘要
提出了一套完整的高含水期油田开发方法系统.其中包括三项内容,而每一项又包括若干具体内容.①油田开发分析方法研究,其中包括:油水、油气相对渗透率研究;油层非均质性研究;水驱可采储量与采收率分析;驱油效率与波及系数分析;提高油井排液量分析;注水井吸水指数分析;自然递减分析;存水率与水驱指数分析;油层压力系统分析;油藏水侵计算.②剩余油研究,其中包括:剩余油宏观分布研究;剩余油微观分布研究;剩余油饱和度研究.③改善水驱油田开发效果调整方法研究,其中包括:加强管理综合调整;打调整井;水动力学方法调整;提高采收率方法;井下措施;利用水平井调整.并指出这些内容不仅对一个具体油田的调整,而且对一般高含水期油田的调整研究都是适用的.将这套方法系统应用于濮城油田南区沙二下_(1-5)层系的调整研究,取得了很大的成效.表明该套方法系统具科学性、先进性和可操作性,有很大的推广价值.
A complete system of methods used fof oilfield development during high water-cut stage is presented. It includes three main contents. Of which there are some small specific items. The first is the study of methods of oilfield development analysis. It includes: ① study of oil-water and oil-gas relative permeability; ② study of heterogeneity in oil reservoir; ③ analysis of recoverable reserves and recovery factor; ④ analysis of oil displacement efficiency and sweep efficiency; ⑤ analysis of increasing withdrawal rates in producion wells; ⑥ analysis of water injectivity index in injection wells; ⑦ analysis of natural decline; ⑧ analysis of water storge rate and water displacement index; ⑨ analysis of reservoir pressure system; and ⑩ calculation of water influx into reservoir. The second is the study of remaining oil. It includes: ① study of macro-distribution of remaining oil; ② study of micro-distribution of remaining oil; and ③ study of saturation of remaining oil. The third is the study of adjustment methods for improving development effect in waterflooding reservoir. It includes: ① to augment management and combined adjustment; ② infill wells; ③ method of IOR; ④ method of E-OR; ⑤ downhole measures; and ⑥ horizontal wells. It shows that this system not only can be used to adjustment of a specific oil reservoir, but to adjustment of an oilfield during high water-cut stage. Used this system to adjustment of Sha Er 1 ~ 5 series of strata of southern zone in Pucheng oilfield, a great success has been made. It proves that this system is scientific, advanced and operable and has an important value for application and dissemination.
出处
《新疆石油地质》
CAS
CSCD
1997年第4期363-369,共7页
Xinjiang Petroleum Geology
关键词
高含水期
油田开发
剩余油
方法系统
High water-cut stage Oilfield development Method System Remaining oil Adjustment
