淮南煤矿山西组煤样的二次生烃模拟研究

对南华北地区淮南煤矿山西组煤样进行的热模拟实验结果表明：只有达到或超过一次演化温度点，煤才开始大量生烃。二次生烃总量与连续生烃量接近，一次生烃量越大，则二次生烃潜力越小。对二次生烃机理进行了讨论，认为二次生烃与一次生烃连续。以连续生烃烃产率曲线为基础建立的煤二次生烃烃产率数值模拟方法已应用于南华北地区石炭-二叠系煤成烃资源评价中。图2表2参6

Simulation and potential evaluation of hydro-carbon regeneration of coal in the Shanxi Formation Huainan Coalmine

A thermal simulation experiment has been done on the coal sampled from Shanxi Formation in the Huainan Coalmine, south North China Basin, suggesting that a great deal of hydrocarbon is generated when simulation temperature reaches or exceeds the evolutionary temperature in the early stage of hydrocarbon generation. The gross hydrocarbon quantity of secondary generation is nearly equal to that of successive generation, and the more hydrocarbon generation in early stage, the less potential of hydrocarbon regeneration remains. Mechanism of secondary hydrocarbon generation was discussed and considered to be continuous with the primary generation. Based on the successive hydrocarbon production curve, the quantity evaluation measure for secondary hydrocarbon generation of Permian-Carhoniferous coal in south North China Basin was established for the source evaluation.