卵砾石层钻进方法与技术措施  

Drilling in Boulder-Gravel Layer: Method and Technical Measures

作　　者：卢予北 

机构地区：[1]河南地矿厅水文地质三队

出　　处：《地质与勘探》1990年第7期58-60,共3页Geology and Exploration

摘　　要：以现有设备为基础,讨论了卵砾石层钻进方法的选择和岩心采取率问题,并提出了相应的改进措施和处理方法.On the basis of drilling equipments now available, major issues of drilling in boulder-gravel layers are the selection of reasonable drilling method and the improvement of core recovery. These two problems are discussed and summarized in this paper. Furthermore, some technical measures are also proposed by the author for handling these problems.

关 键 词：冲击 钻进 回转 卵砾石层 

分 类 号：P634.56[天文地球—地质矿产勘探]