摘要
为了准确对比和划分某井田主采煤层,掌握主采煤层赋存和空间展布规律,在对煤田钻探、测井资料收集整理和分析的基础上,利用不同煤层组合具有不同测井物性响应特征的特点,根据各煤层测井曲线的异常形态响应特征,对合并煤层进行了对比和划分。结合煤层煤质特征与沉积环境的关系,绘制等值线图和沉积断面图,进而分析含煤地层沉积特征,探究主采煤层合并的成因,最终认为井田内成煤基底的差异沉降是造成煤层合并的主要原因。
In order to contrast and divide the main mineable coal seams in a minefield accurately,and master the occurrence and spatial distribution regularity of main mineable coal seams,the coalfield drilling and logging data was collected and analyzed. By using the characteristics that the different coal seam combinations have different logging physical response properties,according to the abnormal morphology response characteristics of logging curves in each coal seam,the combined coal seams were compared and divided. According to the relationship between coal quality and sedimentary environment,the isoline map and sedimentary section map was drawn,the sedimentary characteristics of the coal bearing stratum were analyzed,and the cause of the combination of the mineable coal seams was explored. Finally,it is considered that the differential subsidence of the coal formation in the minefield is the main cause of the coal seam merging.
出处
《陕西煤炭》
2017年第4期37-41,共5页
Shaanxi Coal
关键词
测井曲线
煤层对比
煤层合并
差异沉降
logging curve
coal seams correlation
coal seams merging
differential settlement
