| 金鑫.定向钻进技术在高瓦斯矿井大区域瓦斯抽采中应用效果[J].矿产勘查,2023,14(6):982-988 |
| 定向钻进技术在高瓦斯矿井大区域瓦斯抽采中应用效果 |
| Application of directional drilling technology of gas drainage in large area of high gas mine |
| 投稿时间：2022-08-07 修订日期：2022-11-10 |
| DOI：10.20008/j.kckc.202306016 |
| 中文关键词: 瓦斯抽采 超长定向孔 大区域瓦斯治理 定向钻进 |
| 英文关键词: gas drainage super long directional borehole gas control in large area directional drilling |
| 基金项目:本文受陕西省重点研发计划项目“煤矿井下碎软薄煤层近钻头随钻煤岩识别气体定向钻进技术研究”（2023-YBGY-082）资助。 |
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| 中文摘要: |
| 为满足煤矿井下大区域深部瓦斯抽采的需要，本文介绍了区域瓦斯治理的类型、钻探装备，分析了远端水平对接钻进技术、扇形多分支定向钻进技术和超长定向钻进技术对实际煤炭开采的影响，计算了运用超长定向钻进技术开采的井下瓦斯含量。生产实践表明：超长定向钻孔技术可以覆盖整个待采工作面，使得它比传统常规钻孔技术和扇形、半扇形钻孔技术治理煤矿井下大区域瓦斯效果更好。该技术对煤矿大区域瓦斯超前治理和矿井安全回采具有重要意义。 |
| 英文摘要: |
| In order to meet the needs of deep gas extraction in large area of underground coal mine， the types of regional gas control and drilling equipment were introduced. The effect of distal level docking drilling technology， fan more branch directional drilling technology and super long directional drilling technology on the coal application were investigated. The underground gas content with ultra-long directional drilling technology was calculated. Production practice shows that the super-long directional drilling technology can cover the whole working face to be mined， which makes it better than the conventional drilling technology and the fan-shaped and semi-fan-shaped drilling technology to control the gas in large area of coal mine. This technology is of great significance to the advanced control of gas in large area of coal mine and safe mining. |
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