core re orientation

To orient core precisely and take the oriented core quickly is the key to design a core oriented device.

快速、准确地对孔内岩心定向取出高质量的定向岩心 ,是研制定向取心器的关键。

The paper introduced the principle of core-storage directional core drilling,the key techniques,instrument constitution,technical parameters and the site application.

采用岩心定向取心技术不仅可以迅速而方便地确定地下矿层和结构面的产状,而且还可以判断矿层的走向,了解地层倾向,预测钻孔弯曲的趋势。

Core orientation and its Progress

钻探定向岩心的用途和岩心定向技术的进展

Europa must have a molten core

其核心部分必定是熔岩，

permeability plug

测定渗透率的岩心块

The Determination of Rock Mechanics Parameter of Reservoir Core During Sandstone Matrix Acidizing

砂岩基质酸化前后储层岩心岩石力学参数测定

The Petrology of Niuxinshan Granitoids in the North Qilian and Their Zircon SHRIMP Dating

北祁连牛心山岩体岩石学、锆石SHRIMP定年及其成因

Anisotropic Characteristic of Rock Material and Its Effect on Stability of Tunnel Surrounding Rock;

岩石材料各向异性特征及其对隧道围岩稳定性影响研究

INFLUENCE OF INTERSECTION ANGLE BETWEEN TREND OF SLOPE AND STRATA ON STABILITY OF BEDDING SLOPE

顺向坡岩层倾向与坡向夹角对斜坡稳定性的影响

Of course, one should be scrupulous when drilling through the surface of a mural.

当然，透过画面向岩石钻孔一定要慎之又慎。

Study of Non-Dig Oscillate-Drilling DTH Orientation Device Applied on Hard Rock Stratum;

硬岩非开挖钻进摆动式潜孔锤定向机构的研究

Research on the Determination Methods and Anisotropic Characters of Strength of Jointed Rock Mass;

节理岩体强度确定方法及其各向异性特征研究

Surrounding Rock Stability Analysis and Support Design Study for Xiangjiaba Underground Powerhouse;

向家坝地下厂房围岩稳定分析和支护设计研究

A Study on Pipeline Installation Technology of Horizonal Directional Drilling in Rock

岩层水平定向钻进铺管施工工艺的试验研究

Paleomagnetic fracture orientation analysis of the volcanic rock of Dashen block in Xushen Gas Field

徐深气田达深区块火山岩古地磁裂缝定向分析

Method to determine burst tendency of coal rock by residual energy emission speed

用剩余能量释放速度判定煤岩冲击倾向性

Quantitative evaluation for vertical sealing ability of faults in overpressure mudstone cap rock

超压泥岩盖层中断裂垂向封闭性的定量评价

ROUGH SET AND SUPPORT VECTOR MACHINE BASED METHOD FOR EVALUATION OF ROCK SLOPE STABILITY

岩质边坡稳定性评价的粗糙集-支持向量机方法

On Optimizing Perforating Technology for Orientation Well in Sandstones Reservoir Fracturing

砂岩气藏压裂定向井优化射孔工艺研究

Application of Directional Rupture Blasting Technology with Energetic Pipe in Rock Roadway Driving

聚能管定向断裂爆破技术在岩巷掘进中的应用