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“台阶”是煤层测井精细定厚过程中常遇到的一类现象,“台阶”问题实际是一类伴生在煤层边上或者夹在煤层中间的炭质泥岩划分问题。“台阶”问题的处理关乎最终提交的煤炭资源储量结果。通过介绍两淮地区煤系地层的基本情况、煤岩的测井响应特征,阐释了安徽煤田地质系统内煤层测井定厚的基本原则和方法,对两种不同类型的“台阶”在测井曲线上的表现形式、划分方法和背后的形成原因进行了详细论述,并尝试提出了处理“台阶”问题的最终解决方案。
“Step ” is a kind of phenomenon commonly encountered in the process of fine-grained coal well logging. The problem of “step ” is actually a kind of classification of carbonaceous mudstone associated with the edge of coal seam or sandstone in the middle of coal seam. “Step ” The issue of the deal with the final submission of coal resource reserves results. By introducing the basic conditions of the coal measures strata in Lianghuai region and the logging response characteristics of coal and rock, the basic principles and methods of well logging thickness determination in the geological system of coal field in Anhui Province are explained. Two types of “ Logging curves on the form of presentation, the division method and the reasons behind the formation of a detailed discussion, and try to put forward to deal with ”Step " the final solution to the problem.