黑眼泉北井田煤层对比认识的转变

Transformation of cognition on coal seam correlation in Heiyanquanbei minefield

煤层对比对矿井后期规划、设计、开采十分重要,黑眼泉北井田主要含煤地层为侏罗系下统八道湾组,含主要可采煤层2层,编号为A3、A6号煤层。在分析勘探阶段煤层对比及对比依据基础上,通过补充勘探,提出了对勘探阶段煤层对比的新认识,根据新增钻孔资料分析,从地层组合特征,煤层组合特征,测井曲线物性反映特征等方面相互验证,证明补充勘探阶段井田内煤层对比认识的正确性,同时补充了煤层对比认识的依据。通过前期钻孔施工、地质“三边”工作对勘探阶段煤层对比,认识得到转变,为该区后期开发利用提供了比较可靠的地质依据。

The coal seam correlation is very important for the later planning,design and mining of the mine.The main coal bearing strata in Heiyanquanbei minefield are Badaowan Formation of Lower Jurassic,containing two main minable coal seams,No.A3 and No.A6 coal seams.Based on the analysis of coal seam correlation data and correlation basis in exploration stage,through supplementary exploration,the new opinions on coal seam correlation in exploration stage is put forward.According to the analysis of new drilling data,through mutual verification from the strata combination characteristics,coal seam combination characteristics and logging curves physical properties characteristics,it is proved that the recognition of coal seam correlation in the supplementary exploration stage is correct,and the basis of coal seam correlation is supplemented.Through the analysis of coal seam correlation data in the early exploration stage and supplementary exploration stage,the understanding has been changed,which provides a more reliable geological basis for the later development and utilization of this minefield.