安塞特低渗油田动态裂缝变化特征及其影响  

The Variation Characteristics of Dynamic Fractures of Ansai Ultra-low Permeability Oilfield and Its Effect

作　　者：郭发荣 王洪伟 安明胜 张欢[3] 胡晓丽 

机构地区：[1]中国石油长庆油田分公司油田开发处,陕西西安710018 [2]中国石油大庆油田分公司勘探开发研究院,黑龙江大庆163721 [3]中国石油长庆油田分公司第一采油厂,陕西西安710021 [4]中国石油测井有限公司长庆事业部,陕西西安710021

出　　处：《长江大学学报（自科版）（中旬）》2015年第8期77-79,7,共3页Journal of Yangtze University(Nature Science Edition)

基　　金：国家科技重大专项(2011ZX05013-005)

摘　　要：安塞油田油水井人工裂缝方向单一,裂缝长度是动态变化的,且具有规律性,对油田开发有着重要的影响。研究裂缝动态变化特征对油田开发技术政策调整具有重要的意义。通过试井资料分析计算出注水井动态裂缝延伸速度和采油井动态裂缝闭合速度,并阐述了动态裂缝的变化对井网部署和单井产量有着决定性作用。认为井网与裂缝进行匹配优化,可以最大限度地发挥油藏潜力。周期性重复压裂,可以不断延长采油井人工裂缝长度,提高单井产量,改善开发效果。The development direction was single in artificial fractures of production wells or injection wells in Ansai Oilfield,the fracture length change was dynamic with regularity,it had important effect on the oilfield development.Research on characteristics of fracture dynamic change was significant for the adjustments of technical policies for oilfield development.The article figured out the extending speed of dynamic fractures in water injection wells and closing speed of dynamic fractures in production wells through analysis on well testing data,and the expounding of dynamic fracture change had decisive effect on well pattern deployment and production of single well.It suggests that the optimization of the match between the well pattern and fractures can maximize the oil reservoir potential.Refracturing periodically can prolong the length of artificial fractures in the production wells,increase production of single well and improve the development effect.

关 键 词：安塞油田 人工裂缝 动态裂缝 延伸速度 闭合速度 

分 类 号：TE357.11[石油与天然气工程—油气田开发工程]