涠洲W油田自流注水实践及效果评价  

Practice and Effect Evaluation of Dump Flooding in Weizhou W Oilfield

作　　者：张连枝 卢婧 舒杰 Zhang Lianzhi;Lu Jing;Shu Jie(Hainan Branch of CNOOC Ltd.,Hainan Haiko 524057;Zhanjiang Branch of CNOOC Ltd.,Zhanjiang Guangdong 524057)

机构地区：[1]中海石油(中国)有限公司海南分公司,海南海口570100 [2]中海石油(中国)有限公司湛江分公司,广东湛江524057

出　　处：《石化技术》2022年第12期128-129,193,共3页Petrochemical Industry Technology

摘　　要：针对海上储量规模小、丰度低、天然能量不足的边际小断块油田,常规注水技术无法实现经济有效开发,自流注水技术具有较高的应用价值。涠洲W油田为一复杂断块边际油田,该油田平面多块,纵向多层,各块储量小,储量丰度低,储层物性好,平台无注水设施且无剩余井槽,纵向上有大套稳定发育水层,适合自流注水开发。研究结果表明自流注水能够有效补充油层能量,提高油田开发效果,采收率由衰竭开发的10%提高31.4%。For marginal small fault block oilfields with small offshore reserves,low abundance and insufficient reserves of offshore natural energy,conventional water injection technology cannot achieve economic and effective development,but dump flooding technology has high application value.Weizhou W Oilfield is a complex fault block marginal oilfield.The oil field has many flat blocks and multiple vertical layers.Each block has small reserves,low reserves abundance and good reservoir physical properties.The platform has no water injection facilities and no remaining well slots.There are a large set of stably development water layers,which are suitable for dump flooding development.The research results show that dump flooding can effectively supplement the reservoir energy,improve the oilfield development effect,and increase the recovery rate from 10%of depleted development to 31.4%.

关 键 词：海上 储量规模小 能量不足 自流注水 

分 类 号：TE357.6[石油与天然气工程—油气田开发工程]