Using this method to draw out casing pipe is a high speed and simply effective way.
采用孔内爆破法起拔井壁管 ,是一种快速简便有效的方
Concrete shaft lining deformation monitoring in thick alluvium region and grey model forecast;
深厚表土层地区混凝土井壁变形监测及灰色模型预测
Study on variation of vertical additional force on shaft lining by simulation tests;
井壁竖直附加力变化规律模拟试验研究
Fuzzy integrative evaluation of shaft lining under complicated loads in thick alluvium;
深表土复杂荷载条件立井井壁可靠性的模糊综合评价
660m depthdrilling shaft lining structure design and analysis of main shaft Ban Ji mine
板集主井660m深钻井井壁结构设计分析
Design Optimization of Drilled Shaft Lining Structure in 1000m Deep Shaft
千米深井钻井法凿井井壁结构设计优化
disk wall liner hanger
盘形井壁衬管悬挂器
continuous sidewall core cutter
连续式井壁岩心切割器
hydraulic wall scraper
液压井壁泥饼清除器
hookwall compression-set packer
井壁式压缩座封封隔器
hydraulic expansion wall scraper
液压扩张的井壁刮刀
recipro wall cleaner
上下活动式井壁刮针
gas generated press sidewall coring tool
产气压入式井壁取心器
hard rock coring tool
坚硬岩石井壁取心器
electrically driven rotary sidewall sampler
电动钻进式井壁取心器
Early grouting mechanism and application between thick freezing shaft walls
深厚冻结井壁壁间前注浆机理与应用
A framework to support or strengthen a mine or shaft
井壁基架用来支承或加固矿井的构筑
Three-dimensional Numerical Simulation of Shaft Wall Temperature Stress;
立井井壁温度应力三维数值模拟分析
Study on Wellbore Stability Technique of Daqingzijing Area in Jilin Oil Field;
吉林大情字井地区井壁稳定技术研究
The Method Research of Well-bore Stability Evaluation in Shale by Logging
泥页岩井壁稳定性测井评价方法探讨
Study on Vertical Structural Stability of a Super-deep Drilled Shaft in Slurry
泥浆中超深钻井井壁竖向稳定性分析
Analysis of Horizontal Open Hole Stability in Tainan Gas Field
台南气田水平井裸眼井壁稳定性分析
