J4 ›› 2014, Vol. 20 ›› Issue (3): 470-.

• 能源地质学 •

两淮煤田煤系地层岩石热导率特征

• 出版日期:2014-09-20 发布日期:2014-09-24

Characteristics of Rock Thermal Conductivity of Coal Measure Strata in Huainan-Huaibei Coalfield

PENG Tao，ZHANG Haichao，REN Ziqiang ，SHEN Shuhao ，XU Shengping

• Online:2014-09-20 Published:2014-09-24

4.36 W/mK，平均值2.54 W/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

Abstract:

Based on the results 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.