深孔及松软地层大口径绳索取心钻具的研究与应用  

Study on Large Diameter Wire-line Coring Tool in Deep Hole and Soft Formation Drilling and the Application

作　　者：李晓晖[1] 程林[1] 李艳丽[1] 和新[1] 孔令沪 满国祥 朱立强[1] 闫路[1] 王家一[1] 张慧杰[1] 

机构地区：[1]河北省地矿局国土资源勘查中心,河北石家庄050081

出　　处：《探矿工程（岩土钻掘工程）》2014年第12期49-52,共4页Exploration Engineering:Rock & Soil Drilling and Tunneling

摘　　要：为解决深孔大口径及松软地层取心难的问题,推进取心钻探技术的发展,研发了一套大口径绳索取心钻具。着重介绍了大口径绳索取心钻具的结构特点、技术参数、技术创新及使用效果。应用结果表明,该大口径绳索取心钻具结构合理、各机构动作可靠、岩心采取率高,能够满足深孔及松软地层的取心要求。A set of large diameter wire-line coring tool is developed to solve the difficulties in large diameter deep hole and soft formation drilling.The paper introduces its structure characteristics, technical parameters, technical innovation and the application effects.The application effects show that this drilling tool has the advantages of rational structure, reliable mechanism action and high coring rate and can meet the coring requirements in deep hole and soft formation.

关 键 词：大口径深孔 松软地层 绳索取心钻具 

分 类 号：P634.43[天文地球—地质矿产勘探]