The Multi-functions of Micro-bubble Drilling Fluid for Core Drilling
微泡钻井液在岩芯钻探中的多重功效
Application of Core Drilling Collecting Rate to Evaluate Seam Gas Content and Distribution
应用钻探岩芯采取率评价煤层瓦斯含量及分布
Study on drill bit for large diameter core drilling of deep hole in hard rock
硬岩深孔大口径取芯钻进的钻头研究
Method of deducting contamination caused by drill oil-based fluid in organic geochemical analysis of borehole core
钻探油基泥浆对岩芯有机地化分析中污染的扣除方法研究
Study on Structure Optimization of the Derrick of JYD-1000 All-hydraulic Core Drilling Rig;
JYD-1000型全液压岩芯钻机钻塔结构优化研究
Application of the XY-1 type core drilling machine to horizontal drilling
XY-1型岩芯钻机在水平钻孔施工中的应用
Diamond core drilling equipment conventional system
GB/T16950-1997金刚石岩心钻探钻具设备
Design and Application of large Diameter Bit in Rock and Soil Drilling
岩土钻探工程大口径钻头设计与应用
Drilling Fluid Technology Research on Mirabilite Mine Core Drilling in Guyuan of Ningxia;
宁夏固原芒硝矿取芯钻探钻井液技术研究
Management System of Geological Prospecting Bore Rock Core Information Multimedia Database
地质勘查钻孔岩芯信息多媒体数据库管理系统
Construction Method of Coring for Pore Forming Based on Water Drilling of Super-diameter Rock Pile
超大直径岩石桩水钻取芯成孔的施工技术
Design and analysis of the load sensing pump control system of the 1500m core-drilling rig
1500m岩芯钻机负荷传感泵控系统的设计与分析
Finite Element Analysis and Research on Optimum Design of Drilling Tower Joints of JYD-1000 All-hydraulic Core Drill;
JYD-1000型全液压岩芯钻机钻塔节点有限元分析及优化设计研究
Promote the efficiency of drilling equipments in tunneling and drilling rocks
提高钻探设备在岩石中掘进钻井的效率
Core orientation and its Progress
钻探定向岩心的用途和岩心定向技术的进展
Seamless steel tubes standard use diamond core drilling
GB3423-1982金刚石岩心钻探用无缝钢管
Brief Study on the Rock Fragmentation Test Bed of Air Rotary Percussion Drilling
空气冲旋钻井破岩试验台架研制初探
Method of Enhancing Correct-judgement Rate by the Pile Foundation Geological Drilling in Karst Area
提高岩溶桩基地质钻探正判率的方法
