二次采油与三次采油结合技术在埕东油田东区西北部Ng3~2层的应用  

Technology Combined Secongdary Oil Recovery with Tertiary Oil Recovery for Application and Research in Ng32 Layer in the Northwest of East Chengdong Oilfield

作　　者：毛源[1] 阚淑华[1] 田养林[1] 唐存知[1] 

机构地区：[1]胜利油田有限公司河口采油厂

出　　处：《断块油气田》2003年第6期57-60,共4页Fault-Block Oil & Gas Field

摘　　要：针对埕东油田东区西北部Ng32 层的条件应用了二次采油和三次采油结合技术。在室内研究了各种工作液的优化配方 ,编写了实施方案并现场实施 ,取得了明显的效果 ,在试验期间 ,试验区累积增产原油 1 775 0× 1 0 4t ,投入产出比达到 1∶3 2 1 ,水驱开发效果改善。该技术在埕东特高含水油藏成功应用 ,为同类油藏提高采收率技术的推广提供了借鉴。The technology combined secondary oil recovery with tertiary oil recovery is called '2+3' technology for short,which is enhancing oil recovery technology.Depend on it limited tertiary oil recovery can be progressed on the basis of adequate profile controlling and adequate secondary oil recovery developing.In the light of the condition of Ng32 layer of the northwest of east Chengdong Oilfield,the technology is applied.Optimum formulas of every kind of working fluid are studied,implemental project is compiled and put into practice on site,obvious result is obtained.During the period of experiment,1.775 0×10 4 t crude oil is increased totally,input-output ratio is 1∶3.21,the development result of water drive is improved.The technology is applied successfully in superhigh water-bearing oil reservoir and provides experience for the development of enhancing oil recovery in the same kind of oil reservoir.

关 键 词：二次采油 三次采油 结合技术 埕东油田 东区西北部Ng3^2层 调剖剂 驱油剂 采收率 

分 类 号：TE357[石油与天然气工程—油气田开发工程]