subterrene

subterrene

1. A new type of subterrene drill is then designed according to experiment data.Tests show that the new subterrene drill can reach the demand.

按所确定材料的实验性能设计了新式的热熔器，试验结果达到要求。

2. Keywords ihrigizing graphite;engineering ceramics;pyrolytic graphite;high-strength graphite;new-type subterrene drills;

渗硅石墨;工程陶瓷;热解石墨;高强石墨;新式热熔器;

3. Subterrene Drills

热熔钻进

4. The practice of subterrene drilling indicates that this method not only adapts to geothermal well, but also is a new pipeless reinforcement method to be applied widely.

热熔钻进的实践证明，该方法不仅适用于地热钻井，而且也可以作为一种新的无套管护壁方法推广应用。