喷嘴注入方式对DKD混合器混合效率的影响分析  

Influence of nozzle injection mode on mixing efficiency of DKD mixer

作　　者：何伟 张贺恩 刘华清 高永海[1] 李昊[1] 蔡德军 孙宝江[1] HE Wei;ZHANG Heen;LIU Huaqing;GAO Yonghai;LI Hao;CAI Dejun;SUN Baojiang(School of Petroleum Engineering,China University of Petroleum,Qingdao,Shandong 266555,China;CNPC Offshore Engineering Company Limited,Beijing 100028,China)

机构地区：[1]中国石油大学(华东)石油工程学院,山东青岛266555 [2]中国石油集团海洋工程有限公司,北京100028

出　　处：《中国科技论文》2018年第9期972-977,共6页China Sciencepaper

基　　金：国家科技重大专项(2016X05028-001-003);国家重点研发计划专项(2016YFC0303303);中国石油天然气集团公司科学研究与技术开发项目(2016A-1007)

摘　　要：为了提高动态压井钻井(dynamic kill drilling,DKD)混合器的混合效率和压井液的均匀性,确保动态压井钻井方法的安全实施,提出了一种新型偏心式喷嘴注入结构,并利用数值模拟软件对T型混合器内流场进行模拟,分析喷嘴注入方式对动态压井钻井混合器混合效率的影响。结果表明,偏心喷嘴注入的混合效果优于正对式混合器的混合效果,为动态压井钻井混合器设计提供了一种新思路。To improve the mixing efficiency of the dynamic kill drilling（DKD）mixer and the uniformity of the killing fluid,ensure the secure implementation of the dynamic kill drilling process,a new type of eccentric nozzle injection structure was proposed in this paper.The flow field in the T type mixer was simulated by numerical simulation software,and the influence of nozzle injection mode on the mixing efficiency of the mixer was analyzed.The results show that the efficiency of the eccentric nozzle injection is better than that of the positive one,and the eccentric distance is optimized,which provides a new idea for the design of the dynamic kill drilling mixer.

关 键 词：动态压井钻井 注入方式 混合效率 流场模拟 T型混合器 

分 类 号：TE926[石油与天然气工程—石油机械设备]