南海北部涠洲A油田储层非均质性对注气开发的影响分析  

Impact Analysis of Reservoir Heterogeneity on Gas Injection Development in Weizhou A Oilfield from Northern South China Sea

作　　者：程宝庆[1] 祝永甜 张贺举 陈增裕 高云龙 杨坚 CHENG Baoqing;ZHU Yongtian;ZHANG Heju;CHEN Zengyu;GAO Yunlong;YANG Jian(Engineering Technology Zhanjiang Branch,CNOOC Ener Tech-Drilling&Production Co.,Zhanjiang 524057,China;Guangdong University of Petrochemical Technology,Maoming 525000,China)

机构地区：[1]中海油能源发展股份有限公司工程技术分湛江公司,广东湛江524057 [2]广东石油化工学院,广东茂名525000

出　　处：《化工管理》2024年第3期143-146,共4页Chemical Engineering Management

摘　　要：储层非均质性对油田注气开发的影响是提高采收率的重要因素。文章对涠洲A油田S井区涠四段三套砂体储层非均质性进行评价,并结合岩心驱油实验以及生产动态得出,层间非均质性、平面非均质性、层内非均质性均对注气开发效果存在较大影响。层间非均质性、层内非均质性较强时,注气井吸气不均匀,注气效果较差;平面非均质性较强时,注入气沿高渗通道驱替原油,导致在高渗通道上的生产井气油比上升较快,注气效果较差。The influence of reservoir heterogeneity on oil field gas injection development is an important part of enhancing oil recovery.This paper evaluates the reservoir heterogeneity of three sets of sand bodies,which from Weizhou IV section of S well block in Weizhou A oilfield,combined with core flooding experiment and production performance,it is obtained that interlayer heterogeneity,plane heterogeneity and intraformational heterogeneity all have great influence on the gas injection development effect.When the interlayer heterogeneity and intraformational heterogeneity is strong,the gas injection well has uneven suction and the gas injection effect is poor.When the plane heterogeneity is strong,the injected gas displaces the oil along the high permeability channel,and the gas-oil ratio of producing wells on the high permeability channel rises quickly,the gas injection effect is poor.

关 键 词：非均质性 注气 生产动态 高渗通道 

分 类 号：TE34[石油与天然气工程—油气田开发工程]