boring

Treating difficulties occurred during deep exploration hole drilling under complicated geological conditions

复杂地质条件下深部钻孔勘探疑难问题处理

Discussion on the Diameter of Main Section in Medium-shallow Hole in Diamond Core Drilling for Geological Exploration

地质勘探金刚石岩心钻探中浅孔主体口径探讨

Antenna performance and experimental analysis of borehole radar in geological exploration

地质勘探中钻孔雷达的天线性能及系统实验分析

Application of Wireline Core Drilling in Coalfield Ultra Deep Boreholes

绳索取心钻进技术在煤田勘探超深孔施工中的应用

Investigation of the Application of Hollow-through DTH Hammer Reverse Circulation Drilling Technique in Mineral Exploration

贯通式潜孔锤反循环钻进技术在矿区勘探中的应用研究

drill bit for mining and geological prospecting

矿山及地质勘探钻头

Application of Dry Drilling and Sampling in Landslip Prospecting

干钻成孔及取样在滑坡勘察中的应用

development drilling: Drilling in a known producing field as opposed to exploratory drilling.

开发性钻探: 在已知的生产性油田进行的钻探。区别于勘测性的钻探。

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

Turns on Lathe Digs Drilling Machine Construction Drill Hole Filling Pile Craft to Discuss

旋挖钻机施工钻孔灌注桩的工艺探讨

Application of Directional Drilling in CBM Exploration

定向钻进技术在煤层气勘探中的应用

Exploration programmes are based on drilling for the stratiform deposits along projections of established trends.

勘探计划依靠钻探，钻探层状矿床沿着已知走向的延伸部分进行。

Core Drilling Techniques and Their Applications in the Exploration of Mineral Resources

地质岩心钻探技术及其在资源勘探中的应用

SELECTION OF SLURRY FOR DRILLING IN THE PROSPECTING AREA OF THE YILANDALIAN RIVER

依兰达连河勘探区钻探使用泥浆类型的选择

DISCUSSION OF TECHNOLOGY FOR DISPLAYING THE BORE STRATA HISTOGRAM IN-PHASE WITH DRILL

钻进时同步显示钻孔地层柱状图技术探讨

Selection of Core Drilling Method for WFSD-2 of Wenchuan Earthquake Scientific Drilling Project

汶川地震科学钻探二号孔取心钻进方法的选择

Application of Drilling Engineering in Fracturing Test Borehole of Gasification Coal Mining

钻探工程在气化采煤压裂试验钻孔中的应用

The analysis of reasons for drilling accidents in drilling sites and its treatment

钻探孔内钻具事故原因分析及处理措施