摘要
基于对淮北和淮南煤田煤系地层所测定的127块岩石样品的热导率结果，对测试的岩石热导率结果进行校正，还原岩石初始压力和温度环境下的热导率，校正结果值略大于实测值。同时结合区内前人的实测数据，全面报道了两淮煤田岩石热导率参数及其特征，并从多方面分析了影响热导率大小的因素。结果表明：两淮煤田煤系地层岩石热导率变化范围为0．37～4．36W／mK，平均值2．54W／mK；热导率与岩性、埋藏深度、地层时代和密度等相关密切，砂岩的热导率普遍大于泥岩和煤，热导率和深度、密度均表现为正相关关系。
Based on the resuhs of thermal conductivity of 127 tested rock samples of coal strata in Huainan-Huaibei Coalfield, this paper corrected the results of tested rock thermal conductivity and restored the rock thermal conductivity at the initial pressure and temperature conditions. The corrected values are slightly greater than the measured values. Combining the previously measured data in the region, this paper reports the parameters and the characteristics of rock thermal conductivity in Huainan-Huaibei Coalfield comprehensively, and examines the influencing factors of thermal conductivity from different aspects. The results show that the rock thermal conductivity of coal strata in Huainan-Huaibei Coalfield ranges from 0.37 W/mK to 4.36 W/mK with an average of 2.54 W/mK. The correlation between the thermal conductivity and lithology, buried depth, stratigraphic age and density is significant. The thermal conductivity of sandstone is generally greater than those of mudstone and coal. There is a positive correlation between thermal conductivity and depth as well as density.
出处
《高校地质学报》
CAS
CSCD
北大核心
2014年第3期470-475,共6页
Geological Journal of China Universities
基金
国家自然科学基金项目(41272278)
安徽省国土资源科技项目(2011-K-13)
高等学校博士学科点专项科研基金(20123415110002)共同资助
关键词
热导率
校正
影响因素
两淮煤田
thermal conductivity
correct
influencing factors
Huainan-Huaibei coalfield
