内蒙古柴登勘查区侏罗系煤层综合对比

柴登勘查区位于鄂尔多斯盆地东胜煤田规划区,勘查区主要含煤岩系为侏罗系中～下统延安组,含2、3、4、5、6五个煤组,17层煤层。由于含煤地层空间上变化较大,给煤层对比工作带来困难,本文根据煤田含煤地层岩性特征,采取标志层法、煤层间距法、煤组(层)结构法、测井曲线法和地震波阻追索法进行综合煤层对比,取得了可靠的对比效果。

Synthetical Comtmrison of Jurassic System Main Coal Seam in Chaideng Exploralion District,Mogolia

Chaideng exploration district is located in Dong sheng Coalfield planning area of Erdos basin.In the study area,the mainly coal measures is Yan'an Formation of lower-middle Jurassic,which include 5 coal-seam groups,17 seams.Lithology of coal-bearing strata changes frequently in space,and this makes it great difficult in comparative study of coal seams.Through multiple methods of lithological characteristics of coal-bearing strata,marker beds,inter layer spacing,structure of coal-bearing groups,correlation of logging curve and inversion profile of 2d earthqualce's survey,the authors compare and study the coal seams compr ehensively,and achieves safe omparison efficiency.