摘要
油井堵水需要整体进行,整体堵水需要从区块上选择需要堵水的油井。提出了3个单一决策参数,即含水率上升指数、压力指数及剩余油饱和度,前两项表征地下大孔道,后者表征地下物质基础。含水率上升指数越大、压力指数越小、剩余油饱和度越高的油井越需要堵水。由模糊综合评判法将3个决策参数产生一个决策参数作为堵水油井的遴选值,可简单方便进行选井。由该方法产生的堵水油井与动态分析符合率超过90%。
Water shutoff of oil well needs to carry through in the whole,and the whole water shutoff needs to select the oil well which needs to be plugged in an entire tract.Three unitary decision-making parameters,which are water-cut rising index,pressure index and remaining oil saturation,have been put forward in this paper.The first two of them indicates high pore path in the formation,and the latter indicates material foundation.If water cut rising index and remaining oil saturation index are bigger and pressure index of the oil well is smaller,the urgency of oil well plugging water should be much more.A decision-making parameter as a selected figure of water shutoff in oil well is resulted from three decision-making parameters by fuzzy-judged method.The method is simply for selecting oil well plugged water.The oil wells which should be plugged water by the method are close to those from dynamic analysis,and the rate is over ninety percent.
出处
《断块油气田》
CAS
2006年第4期21-23,共3页
Fault-Block Oil & Gas Field
基金
中石化重点攻关项目"濮城油田高含水期综合治理"部分内容
关键词
油井堵水
决策技术
整体堵水
模糊评判
采收率
Water shutoff in oil well,Decision-making technique,Whole water shutoff,Fuzzy evaluation,Enhanced oil recovery.
