水平井变密度射孔控水技术在渤海C油田的应用  

Application of Variable Density Perforation Water Control Technology for Horizontal Wells in C Oilfield of Bohai Sea

作　　者：刘鹏 张启龙 乔中山 胡晋阳 秦天宝 Liu Peng;Zhang Qilong;Qiao Zhongshan;Hu Jinyang;Qin Tianbao(Tianjin Branch,CNOOC(China)Co.,Ltd.,Tianjin 300459,China;Engineering Technology Branch,CNOOC Energy Technology&Services Limited,Tianjin 300459,China;Pengbo Operation Company,CNOOC(China)Co.,Ltd.,Tianjin 300450,China)

机构地区：[1]中海石油(中国)有限公司天津分公司,天津300459 [2]中海油能源发展股份有限公司工程技术分公司,天津300459 [3]中海石油(中国)有限公司蓬勃作业公司,天津300450

出　　处：《石油工业技术监督》2021年第7期52-55,共4页Technology Supervision in Petroleum Industry

基　　金：“十三五”国家科技重大专项“渤海油田高效开发示范工程”(编号:2016ZX05058)。

摘　　要：渤海部分油田开发进入中后期,因长期注水开发导致储层水淹的高含水井越来越多,稳油控水刻不容缓。基于径向有限单元油水两相产能模型,建立了一套分段表皮系数组合的最优解方法,对目标区块XH1水平井开展了表皮系数组合优化、射孔参数设计以及不同射孔方式下控水效果对比分析,完成水淹层变密度射孔完井方案设计。经过现场试验,投产半年来生产含水率一直维持在5.4%左右,达到了明显的控水增油效果,为渤海油田控水增油开辟了一条新途径,具有广阔的应用前景,可在类似的水淹储层及高含水油田推广应用。The development of some oilfields in Bohai has gradually entered the middle and late stage.Oil wells with high water content become more and more due to long-term water injection development,so it is urgent to stabilize oil and control water.A set of method for solving the optimal solution of segmented skin factor combination is established based on the radial finite element oil-water twophase productivity model.The skin factor combination optimization,perforation parameter design and comparative analysis of water control effects under different perforation methods are carried out for XH1 horizontal well in the target block,and the variable density perforation completion scheme design of water flooded layer is completed.Field test shows that the water content has been maintained at about 5.4%in half a year since the production,which has achieved the effect of water control and oil increase.The reservoir result has opened a new way for water control and oil increase in Bohai oilfield,and has a broad application prospect,and can be widely ap⁃plied in similar flooded reservoirs and high water-cut oil fields.

关 键 词：渤海油田 水平套管井 变密度射孔 控水 非均质性 

分 类 号：TE53[石油与天然气工程—油气田开发工程]