识别低效循环井和层的数学模型  

The Mathematical Model of the Wells and Layers with Low Efficiency Circle Identification

作　　者：赵淑红[1] 张继成[1] 张祖科[2] 李霄峰[3] 

机构地区：[1]东北石油大学石油工程学院,黑龙江大庆163318 [2]辽河油田分公司组织部,辽宁盘锦124000 [3]大庆油田有限责任公司第四采油厂,黑龙江大庆163511

出　　处：《数学的实践与认识》2013年第23期91-98,共8页Mathematics in Practice and Theory

基　　金：黑龙江省长江学者后备支持计划项目(2011CJHB005);黑龙江省新世纪优秀人才支持计划项目(1155-NCET-001)

摘　　要：油田到了注水开发后期、高含水甚至特高含水开发阶段,由于地质和开发两方面的原因,在油水井之间形成了低效循环通道,导致注入水沿低效循环通道长期做无效或低效循环,油井产量下降.为改善注水开发效果达到稳油控水目的,有必要对低效循环井层实施调剖、封堵等措施,而有效识别低效循环井层是问题的关键.优选出了识别低效循环油水井和低效循环层位的判定指标,并建立了用于识别低效循环井层的模糊综合评判数学模型.When the oiffield entering the late stage of waterflooding development, high water cut even extra high water-cut development stage, low eff3ective circulation channels in oil and water wells were formed due to the reasons of geogy and development, which made the injected water do long-term ineffective or inefficient circulation along the inefficient circulation channels, the oil production declined. In order to improve the water flooding development effect and stabilize oil production and control water cut, it is necessary to implement profile controlling, water plugging measures to the wells and layers with low efficiency circle, and effective identification of the wells and layers with low efficiency circle is the key to the problem. This text chose the index to identify the inefficient circulation of oil and water wells and layers, and established the mathematical model of fuzzy comprehensive evaluation for identifying low effective circulation in wells and layers.

关 键 词：低效循环 数学模型 模糊综合评判 

分 类 号：TE319[石油与天然气工程—油气田开发工程]