摘要
江苏油田陈堡、安丰、周宋等复杂小断块边底水砂岩油藏,油藏规模小、含油带窄、隔夹层复杂,在早期开发中都是采取一套井网控制,逐层上返的开发模式,油井投入开发后普遍呈现含水上升快,产量递减迅速等问题。在剩余油研究的基础上,根据油藏形态、隔夹层分布、边底水能量及油水粘度比等,有针对性地采取不同的调整策略,转变油藏开发模式,调整层系井网,充分挖掘各类剩余油潜力,大大改善了油藏开发效果。
Complex small fault block sand stone reservoirs with edge and bottom water in Jiangsu Oilfield including Chenbao,Anfeng and Zhousong have characteristics of small scale,narrow oil bearing belt and complex barriers and interbeds.In early period,a set of well pattern control and stepwise upward-return development methods are adopted.After putting to production,oil wells regularly show several problems of rapid increasing water cut and rapid declining production.Based on study on remaining oil,according to reservoir form, barrier and interbed distribution,edge and bottom water energy and oil/water viscosity,different adjustment schemes are adopted in order to transform reservoir development patterns and adjust well patterns among layer systems,which can fully find potentiality of various remaining oil and can improve reservoir development effects.
出处
《大庆石油地质与开发》
CAS
CSCD
北大核心
2006年第6期53-55,共3页
Petroleum Geology & Oilfield Development in Daqing
基金
中国石油化工集团公司重点科技攻关项目"复杂小断块高含水油藏提高采收率技术研究"(P01040)
关键词
断块油藏
边底水
剩余油
开发模式
采收率
block reservoir
edge and bottom water
remaining oil
development pattern
recovery factor
