core barrel

The Multi-functions of Micro-bubble Drilling Fluid for Core Drilling

微泡鉆井液在巖芯鉆探中的多重功效

Application of Core Drilling Collecting Rate to Evaluate Seam Gas Content and Distribution

應用鉆探巖芯采取率評價煤層瓦斯含量及分布

Study on drill bit for large diameter core drilling of deep hole in hard rock

硬巖深孔大口徑取芯鉆進的鉆頭研究

Method of deducting contamination caused by drill oil-based fluid in organic geochemical analysis of borehole core

鉆探油基泥漿對巖芯有機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型全液壓巖芯鉆機鉆塔結構優化研究

Application of the XY-1 type core drilling machine to horizontal drilling

XY-1型巖芯鉆機在水平鉆孔施工中的應用

Diamond core drilling equipment conventional system

GB/T16950-1997金剛石巖心鉆探鉆具設備

Design and Application of large Diameter Bit in Rock and Soil Drilling

巖土鉆探工程大口徑鉆頭設計與應用

Drilling Fluid Technology Research on Mirabilite Mine Core Drilling in Guyuan of Ningxia;

寧夏固原芒硝礦取芯鉆探鉆井液技術研究

Management System of Geological Prospecting Bore Rock Core Information Multimedia Database

地質勘查鉆孔巖芯信息多媒體數據庫管理系統

Construction Method of Coring for Pore Forming Based on Water Drilling of Super-diameter Rock Pile

超大直徑巖石樁水鉆取芯成孔的施工技術

Design and analysis of the load sensing pump control system of the 1500m core-drilling rig

1500m巖芯鉆機負荷傳感泵控系統的設計與分析

Finite Element Analysis and Research on Optimum Design of Drilling Tower Joints of JYD-1000 All-hydraulic Core Drill;

JYD-1000型全液壓巖芯鉆機鉆塔節點有限元分析及優化設計研究

Promote the efficiency of drilling equipments in tunneling and drilling rocks

提高鉆探設備在巖石中掘進鉆井的效率

Core orientation and its Progress

鉆探定向巖心的用途和巖心定向技術的進展

Seamless steel tubes standard use diamond core drilling

GB3423-1982金剛石巖心鉆探用無縫鋼管

Brief Study on the Rock Fragmentation Test Bed of Air Rotary Percussion Drilling

空氣沖旋鉆井破巖試驗臺架研制初探

Method of Enhancing Correct-judgement Rate by the Pile Foundation Geological Drilling in Karst Area

提高巖溶樁基地質鉆探正判率的方法