CO_2爆破增透技术的试验研究

Experimental Study on Carbon Dioxide Blasting Anti-reflection Technology

针对低透性高瓦斯煤层透气性差,瓦斯含量高,预抽采难度大、效率低等难题,研发出CO_2致裂器爆破增透技术,采用井下试验和数值模拟相结合的方法,研究发现:CO_2致裂器爆破煤层,会促使煤层产生大量裂隙,并使得原有裂隙得到扩展,从而达到提高煤层透气性的目的。

For low permeability and high gas coal poor permeability, high gas content, pre-drainage is difficult, low efficiency and other difficult problem, developed for carbon dioxide fracturing device blasting technology to increase permeability, underground experiments and numerical simulation methods, the study found： carbon dioxide fracturing blasting coal seam, the coal seam will lead to a large amount of cracks, the original crack expansion, so as to improve the permeability of the coal seam.