【摘要】 淮北矿区水文地质、构造地质、煤层赋存条件极其复杂,岩浆侵入煤层的现象普遍存在,对煤矿的安全生产影响极大,因此运用有效的手段查清岩浆岩在煤层中的分布范围迫在眉睫。利用在全区范围均匀分布的超前探钻孔小柱状数据进行拟密度反演,对祁南煤矿103采区10煤层岩浆岩侵入范围进行了研究,解决了由于测井数据少不能精确预测岩浆岩侵入范围的问题。据淮北矿业集团反馈,新钻6个孔,其中5个与预测结果一致。结果表明:运用钻孔柱状数据重构拟密度反演技术对预测煤层中岩浆岩分布有良好效果。更多还原

【Abstract】 The hydrogeology, tectonic geology and coal seam occurrence conditions in Huaibei mining area are extremely complex, and the magma intrusion into coal seam is widespread, which has a great impact on the safety of coal mine production. Therefore, it is urgent to find out the distribution range of magma in coal seam by taking effective means. This paper adopts the quasi-density inversion technique to study magmatic rock intrusion zone of 10 coal seams in mining area 103 of Qinan coal mine by using borehole columnar data uniformly distributed in the whole area, which solves the problem that the magmatic rock intrusion area cannot be predicted accurately due to less logging data. According to the feedback from Huaibei mining group, six new holes were drilled and five holes of which were consistent with the expected results. So this method has a good effect on predicting the distribution of magmatic rocks in coal seams.更多还原