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由于采用可多次镶焊的钻头体和大量供应大功率和可微调的旋转式钻机,使旋转钻进技术扩大了使用范围。为了使旋转钻进技术在硬岩上也能像冲击式钻进技术一样,达到较高的钻进速度,就要求在保持较大的转矩的情况下,具有较高的轴压力和可变的转速。随着包括钻杆和钻头在内的整个系统的改进,对于在特定的岩层上用回转钻孔技术进行钻孔已取得了必要的可能也是必须的工作参数。当然,还必须了解有关使用的限度。随着钻头、接头和钻杆的新型材料和新型结构的发展,旋转钻孔技术将取得进一步改进。
Rotary drilling technology has been expanded to include the use of multiple reflowable drill bits and the large supply of high-power and fine-tuneable rotary drills. In order to enable rotary drilling technology on hard rock like percussive drilling technology to achieve a higher drilling speed, it is required to maintain a larger torque, with high shaft pressure and variable Rotating speed. With the improvement of the entire system including the drill pipe and the drill bit, the necessary and possible working parameters have been obtained for drilling with the rotary drilling technique on a specific rock formation. Of course, you must also understand the use of the limit. With the development of new materials and new structures for drill bits, joints and drill pipes, rotary drilling technology will be further improved.