摘要
介绍了汶川地震断裂带科学钻探项目钻探施工过程中尾管固井技术的应用情况。针对该项目钻探施工的复杂地层条件,研发了适合于破碎地层和小套管间隙的无接箍尾管固井技术,关键技术包括尾管管柱设计、尾管下入及钻柱分离技术和施工工艺、适合于破碎地层和小套管间隙条件的尾管固井浆液设计和施工工艺。采用研发成功的尾管固井技术,在该项目的二号孔和三号孔中共进行了4次下尾管作业,均获得了成功。
This article introduces the liner cementation technology and its application in Wenchuan earthquake scientific drilling project. According to the conditions of complex formation in this drilling project, liner cementation technology which is suitable for broken formation and small annulus between borehole and casing string, has been developed. The key points of this technology include liner string design and installation and cementing slurry design and construction. This tech- nology has been successfully used in 4 liner cementation operations.
出处
《探矿工程（岩土钻掘工程）》
2012年第9期32-38,共7页
Exploration Engineering:Rock & Soil Drilling and Tunneling
基金
科技部科技支撑计划专项"汶川地震断裂带科学钻探(WFSD)"项目之"科学钻探与科学测井"课题
关键词
汶川地震
地震断裂带
科学钻探
尾管
倒扣接头
固井
Wenchuan earthquake
earthquake fault
scientific drilling
liner
buckle connector
cementation
