摘要
针对目前现场应用中缺乏一种具有优异环保性能的油气层保护剂的难题,开发出一种以淀粉微球为主剂的新型淀粉基油气层保护剂DYB。DYB经中试放大后成功在B-446井与B-449井进行了现场应用。现场井试结果表明,DYB与井浆配伍性良好,有效控制了不同深度井浆的失水,同时对井浆黏度影响小。此外,DYB具有较好的抗温性能,在140℃以内降滤失性能稳定,可以进一步在深井中进行应用。
In view of the lack of a kind of reservoir protection agent with excellent environmental performance,a new type of starch-based reservoir protection agent DYB was developed.After pilot scale production,DYB has been successfully applied in well B-446 and B-449.The field application results showed that the compatibility between DYB and the slurry was good,the filtration loss of different depths were controlled after DYB added in well,DYB had little effect on the viscosity of slurry.In addition,DYB had good temperature resistance and stable filtration reduction performance within 140℃,which can be further applied in deep wells.
作者
张学辉
王晨
李杰
杨超
ZHANG Xue-hui;WANG Chen;LI Jie;YANG Chao(Sinopec Dalian Research Institute of Petroleum and Petrochemicals,Dalian Liaoning 116041,China)
出处
《当代化工》
CAS
2023年第12期2983-2986,共4页
Contemporary Chemical Industry
基金
中国石油化工股份有限公司课题资助(项目编号:420030)。
关键词
淀粉基
油气层保护剂
降滤失性
现场应用
Starch-based
Reservoir protection agent
Filtration loss control
Field application
