汶川地震断裂带科学钻探项目WFSD-4孔强缩径地层钻进工艺研究  

The Research on Drilling Technology Used for Strong Hole Shrinkage Borehole Condition in Borehole WFSD-4 of Wenchuan Earthquake Fault Scientific Drilling Project

作　　者：罗光强[1] 张伟[2] 李正前[1] 李旭东 

机构地区：[1]中国地质科学院探矿工艺研究所,四川成都611734 [2]中国地质调查局,北京100037 [3]江苏省地矿局第六地质大队,江苏连云港222023

出　　处：《探矿工程（岩土钻掘工程）》2014年第9期130-132,138,共4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;中国地质调查局地调项目"破碎和强缩径地层大直径深孔取心钻进技术研究"(1212011120258);"地震断裂带复杂地层钻探施工技术应用示范"(12120114075701)

摘　　要：介绍了汶川地震断裂带科学钻探项目WFSD-4孔强缩径地层钻进的技术问题。在分析地层缩径机理和影响因素的基础上,提出了强缩径地层的钻进工艺措施。措施在WFSD-4孔中实施取得了显著的效果。This article introduced technical problems encountered in drilling operation in strong hole shrinkage formation of WFSD-4 of Wenchuan earthquake fault scientific drilling project. On the basis of analyzing mechanisms of hole shrinkage and influence factors,drilling technical measures for resolving problems of strong hole shrinkage formation drilling were put forward. Good results were achieved in application of drilling technical measures for strong hole shrinkage formation in WFSD-4.

关 键 词：汶川地震 科学钻探 钻探工艺 缩径 有限元分析 

分 类 号：P634.5[天文地球—地质矿产勘探]