【摘要】 以黄县煤田梁家煤矿为例,综合应用标志层特征及间距,测井曲线形态,煤层的厚度与结构特征,以及地震时间剖面和沉积环境等分析手段进行海域煤田的煤层对比研究,各种方法的对比结果较为一致,均显示出该区域煤层沉积韵律及旋回结构清晰,标志层多而明显,煤层层位比较清楚和稳定,层间距变化相对较小,使煤1、煤2主要可采煤层达到对比可靠的程度。由此表明,对于钻孔较少的海域煤田,通过综合利用各种煤层对比方法可以更为准确地掌握煤层的变化规律,这为海域煤田的煤层对比工作提供了重要的借鉴和指导。更多还原

【Abstract】 In this paper we adopt five methods to correlate marine coal seams in Liangjia west waters,Huangxian coalfield:coal seams correlation of guiding bed and interlayer distance,coal seams correlation of well logging curve shape,coal seams correlation of coal seam thickness and structure characteristics,coal seams correlation of seismic time section correlation and coal seams correlation of sedimentary environment analysis.The results of methods mentioned above are consistent,revealing clear sedimentary rhythm and cycle structure,a lot of apparent mark layers,fairly distinct and stable positions,and relatively small changes of interlayer distance.All of these prove the reliability of the major minable seams(1and 2seams).Therefore,we can also master change laws of marine coal seams correctly in less drilling areas by comprehensive utilization of various coal seams correlations.This strategy provides important reference and guidance for coal seams correlation in other marine coalfields.更多还原