为了对山西浑源煤中层状藻类体各生烃参数进行定量的综合分析,进而对该区层状藻类体的生烃能力进行评价,采用热模拟试验、荧光试验、离子探针等方法对该区煤中层状藻类体的生烃潜力、生烃特征和生烃模式进行了研究。研究表明：该区层状藻类体普遍具荧光,在低成熟阶段,具有中强的浅绿色荧光,强的正荧光变化,荧光光谱呈现双峰,前峰出现在波长500 nm附近,后峰出现在680 nm附近,前峰比后峰大;生油时镜质组反射率R0为0.4%～1.2%,温度为250～475℃以及生烃的峰值R0=0.95%,且排烃高峰晚于生烃高峰,说明该区的层状藻类体的生烃能力强,生油带很宽,能生成一定量的液态烃和气态烃。%In order to have a quantitative comprehensive analysis on each hydrocarbon generation parameters of the lamellar algae in Shanxi Hunyuan coal,an evaluation was conducted on the hydrocarbon generation capacity of the lamellar algae in the mining area.A thermal simulation experiment,a fluorescence experiment,an ion microprobe and other methods were applied to the study on the hydrocarbon generation potential,the hydrocarbon generation features and the hydrocarbon generation mode of the lamellar algae in the mining area.The study results showed that the lamellar algae in the mining area would have fluorescence generally.At the low mature stage,the lamellar algae would have medium strong light green fluorescence and strong positive fluorescence variation.The fluorescence spectrum would be double peak,the front peak would appear near at 500 nm,the rear peak would appear near at 680 nm and the front peak would higher than the rear peak.When the oil generation scope R0 was 0.4%～1.2%,the temperature scope was 250～475 ℃,the hydrocarbon generation peak was R0= 0.95% and when the hydrocarbon discharging high peak was later than the hydrocarbon generation high peak,the hydrocarbon generation capacity of the lamellar algae in the area would be high,the oil generation zone would be wide and the certain quantity of the liquefied hydrocarbon and the gasified hydrocarbon could be generated.
展开▼
