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- THE APPLICATION OF THE MINING TRANSIENT ELECTROMAGNETIC METHOD TO THE EXPLORATION OF HYDROLOGICAL BOREHOLE 矿井瞬变电磁法在水文钻孔探测中的应用
- Keywords mine transient electromagnetic method;hydrological borehole;hydrous characteristics;advanced detection; 矿井瞬变电磁法;水文钻孔;富水性;超前探测;
- hydrological borehole 水文钻孔
- Curtain grouting design for Zhongguan iron mine demands big depth and high verticality,but under the complex geological and hydrological conditions,borehole deviation is serious. 中关铁矿帷幕灌浆孔设计深度深、钻孔垂直度要求高,加之地质条件、水文条件的特殊性和复杂性,钻孔偏斜超标严重,经过实践,摸索出一套有效的防斜、纠斜技术措施。
- Journal of Japanese Association of Hydrological Sciences. 日本水文科学会誌/
- The quality of borehole directly influences the effect of blasting. 钻孔质量的好坏,直接关系到爆破效果的优劣。
- Borehole fluid holdup defines what type of reinvasion occurs. 井内流体持率决定发生二次侵入的类型。
- A borehole image of rock layers indicating an underground point bar. 指示某地下曲流沙坝的一幅岩层钻孔图像。
- Borehole magnetic technique has been widely used in geology and CCSD. 井中磁测技术在地质、大陆钻探等方面都有广泛的应用。
- A new method for measuring the borehole water holdup is given in this paper. 论述了一种新型的油井持水率测定方法。
- Scientists now believe Titan has a hydrological cycle similar to Earth. 科学家们现在认为提坦的水循环和地球相似。
- Borehole hydromining is a kind of safe and efficient new mining method . 钻孔水力采煤是一种既安全、又能极大地提高资源利用率的新的采矿方法。
- The acoustoelectric effect of rock is investigated with experimental method in model borehole. 在模型井中对岩石的声电效应进行了实验研究。
- The correct method of prevention and control should naturally start with the improvement of the hydrological environment. 正确的防治办法,自然应该从改善水文环境入手。
- Orientation is very important for a seismometer, whether it is installed on surface or in borehole. 摘要无论地震计在地表或是井下使用,都必须精确定向。
- In modern logging several different kinds of measurements are taken simultaneously in a borehole. 现代测井操作在一个钻孔中同时进行多种不同的测量。
- Obtaining a rea-sonable description of these hydrological processes is one key problem for land surface studies. 对这些水文过程进行合理参数化是陆面水文模型研究的核心问题。
- The priority is on keeping the exposed rock formation in the borehole stable while avoiding the loss of drilling fluid. 此时的重点是要保持钻孔中裸露岩层的稳定,同时还要避免钻井液流失。
- Point bars modeled in a North Texas gas field on the basis of borehole and seismic images. 根据钻孔和地震图像建立的德克萨斯州北部某气田中的曲流沙坝模型。
- At the bottom of a deep well, the borehole might be 8 inches (20 centimeters) in diameter. 在深井的底部,钻孔的直径可达8英寸(20厘米)。