安鹤煤田当中岗勘查区石炭—二叠系煤岩层对比研究

利用钻探、物探及化验等多项成果,采用标志层、煤岩层组合特征、煤质特征和测井响应等多种方法,对安鹤煤田当中岗勘查区含煤地层进行划分对比,首次确定了煤系含煤12层及各组、段厚度,确定主采的二1、一11煤层的层位,二1煤电阻率372~1350Ω·m,低灰低硫,一11煤视电阻率320~860Ω·m,高灰高硫。并以当中岗勘查区为例,论述煤岩层对比的重要性及不同方法的适宜性,结合对比数据,阐述该区煤系沉积成因、组合差异、物性差异等内在机理。

Carboniferous-Permo Coal and Rock Seams Correlation in Dangzhonggang Exploration District,Anhe Coalfield

The reconnaissance and the general survey results, such as drilling, geophysical prospecting and chemical testing results, as well as methods of key beds, interlayer spacing, coal quality analysis and log response, have been applied to establish and compare the coal-bearing strata in Dangzhonggang Exploration District, Anhe Coalfield, determine key recoverable coal seams and analyze stratigraphic sequences, lithologic combination, key bed thickness and interlayer spacing. The existing research results have been studied and the experience has been compared, the 12 layers of coal containing coal measure strata is determined, and the thickness of Group or Member. To determine the horizon of Key workable coal seams B1 and A 1 1. The apparent resistivity of coal seams B1 is 372 ~ 1350 Ω?m , coal seams B1 is low-ash and low-sulfur coal. The apparent resistivity of coal seams A 1 1 is 320 ~ 860 Ω?m , coal seams A 1 1 is Ash Coal and High Sulfur Coal. A case study of coal and rock seams correlation in this area, discusses the importance of coal and rock contrasting suitability of different methods, combined with comparative data to explain the area coal sedimentary origin, composition differences, differences in the physical properties inherent mechanism.