决策树分析方法在BZ油田低产低效井治理决策中的应用  

Application of Decision Tree Analysis Method in the Governance Decision of Low Production and Low Efficiency Wells in BZ Oilfield

作　　者：赵云斌 张震 王彦鹏 陈凯 李瑞雪 ZHAO Yun-bin;ZHANG Zhen;WANG Yan-peng;CHEN Kai;LI Rui-xue(CNOOC Energy Development Co.,Ltd.,Engineering and Technology Branch,Tianjin 300459,China;CNOOC(China)Co.,Ltd.Tianjin Branch,Tianjin 300459,China)

机构地区：[1]中海油能源发展股份有限公司工程技术分公司,天津300459 [2]中海石油(中国)有限公司天津分公司,天津300459

出　　处：《化工管理》2021年第35期197-198,共2页Chemical Engineering Management

摘　　要：BZ油田是海上大型常规稠油油田,投产开采至今,低产低效井数逐年增加,严重制约着油田高效开发。文章在明确低产低效井定义基础上,基于对BZ油田过往低产低效井治理数据挖掘分析,引用决策树分析方法,构建决策树模型,挖掘出影响油田低产低效井治理效果的重要因素依次为低产低效成因、有效度、日产油。应用该模型对油田低产低效井治理计划进行优化,识别出相对高产潜力井,提前实施见产,达到通过优化措施顺序间接增产的效果,同时验证了该方法的可靠性。BZ oilf ield is a large conventional heavy oil f ield offshore.Since the start of production,the number of low production and low eff iciency wells has increased year by year,which has severely restricted the eff icient development of oilf ields.On the basis of clarifying the def inition of low production and low eff iciency wells and the data mining and analysis of the previous low production and low eff iciency wells of the BZ oilf ield,the decision tree analysis method is used to construct a decision tree model to f ind out that the important factors affecting the governance effect are the reasons of low production and low eff iciency,effectiveness and daily oil production in this oilf ield.This model is used to optimize the treatment plan of low production and low eff iciency wells in the BZ oilf ield,identify relatively high-yield potential wells and implement the production in advance to achieve the effect of indirect increase in production through the optimization of the sequence of measures.At the same time,the reliability of the method is verif ied.

关 键 词：低产低效 决策树 优化措施顺序 

分 类 号：TE328[石油与天然气工程—油气田开发工程]