Using logging data to evaluate the drilling strata compositely;
用测井信息综合评价钻遇地层
It is concluded that there are five types of sliding-prone strata in reservoir area on the basis of geologic analysis and engineering geology analogy analysis.
收集和整理了近年来三峡库区地质灾害防治工程中近400处滑坡的勘察资料,采用地质分析和工程地质类比法,指出三峡库区内存在5类易滑地层。
Experiment of Formate Drilling Fluid for Drilling in Marine Gas Hydrate Bearing Sediments
海底天然气水合物地层钻探甲酸盐钻井液实验
Research on the Low Temperature Rheology Property of Drilling Fluids for the Offshore Gas Hydrate Exploration
海洋天然气水合物地层钻探钻井液低温流变性能研究
Drilling Technology of Complicated Geologic Strata in Jianzhupings Mining
箭竹坪煤矿区复杂地层钻探施工的技术
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
The technical measures on selecting the slurry of the coalfield comples stratum drilling
煤田钻探复杂地层泥浆应对技术措施
easing the bit in
钻头轻压慢转钻进地层
Discussion on the detection technology for the formation pressure while drilling in Jizhong Exploration Area
冀中探区随钻地层压力检测技术方法探讨
Aimed at some technological questions caused in the drilling of complex strata in coal field, especially in cenozoic strata carried out discussion.
针对煤田地层钻进中钻遇复杂地层特别是新生界地层时涉及的几点技术问题进行了探讨。
Research on Deep Hole Wire Line Core drilling Tech.in Complicated Stratum
复杂地层中深孔绳索取心钻探技术研究
Application of Pre-floating Measures in Deep-hole Drilling in the Complex Strata
预飘措施在复杂地层中深孔钻探中的运用
Discussion on Preparation of Borehole Wall Protecting and Leak Plugging Drilling Fluid Used in Coal Measures Strata
煤系地层护壁堵漏钻井液配制技术探讨
Probe into the Stratum Characteristics and the Drillability of Tabamiao Block in North Ordos
鄂北塔巴庙区块地层特征与可钻性探讨
Discussion on Geological Drilling in Gravel Layer of Dongting Village Xin Jia Yuan Project
武汉东亭村新嘉源项目卵石层地质钻探技术探讨
4.14 Drilling with cone (drag) bit in the section.
此段地层采用牙轮（刮刀）钻头钻进。
The men dug the oil well by Boring through the ground with huge drills
工人使用巨大钻机钻透地层挖掘油井。
On the Construction of Bore Bottling Pile and the Change Rule of Ground Temperature of Its Surrounding Ground
钻孔灌注桩施工及其周围土层地温变化规律的探讨
The Development of the Light Hydraulic Driven Coring Drill and Tools for Soft Sediment;
轻便型松散（软）地层原状取心全液压钻探机具的研制
New Means Of PrOtecting H0le ln Drilling,In Broken Terrane Of Sinian System Carbonatite From Central Of Yunnan Provlnce;
滇中震旦系碳酸盐岩破碎地层的钻探护孔新技术