论文部分内容阅读
针对单一测井曲线难以区分原生结构煤与构造煤的问题,采用测井曲线重构的方法进行研究。提出利用Fisher准则优选测井曲线,提取密度测井曲线、人工伽马测井曲线的高频信息与声波测井曲线的低频信息进行重构,重构的拟声波曲线有利于构造煤的识别。将该方法应用于沁水盆地某矿的钻孔,提高了识别构造煤的效率,表明该方法在区分原生结构煤与构造煤方面的实用性。
In view of the difficulty of distinguishing the primary structure coal from the tectonic coal in a single well logging curve, the well logging curve reconstruction method is used to study. It is proposed to reconstruct the low-frequency information by using Fisher’s criterion, high-frequency information of density log, artificial gamma log and acoustic logging curve. The reconstructed pseudo-acoustic curve is helpful for the recognition of tectonic coal. Applying this method to the drilling of a mine in Qinshui Basin improved the efficiency of identifying tectonized coal, indicating the practicability of this method in distinguishing primary structure coal from tectonic coal.