摘要
作者选择沉积岩中常见的8种矿物,与有机质(干酪根)混合进行热解试验,以研究矿物质对有机质热解的影响。试验研究表明,这8种矿物中,石英、正长石、斜长石、方解石、白云石对热解基本没有影响;高岭石、伊利石、蒙脱石对热解色谱特征影响较大,与末加入矿物质的纯干酪根热解色谱相比,发生如下变化:(1)烯烃含量剧减;(2)大分子的烷烃减少;(3)小分子的烷基苯增加;(4)挥发性组份增加。
8 kinds of minerals common in sedimentary rocks are selected, which are mixed with organics ( kerogen ) to make pyrolytical experiments , so as to study the influence of minerals on organic pyrolysis. The experiments revealed that of the eight kinds of minerals, quartz, orthoclase, calcites and dolomites have basically no influence on pyrolysis; while kaolinites , illites and montmorillonites appeared to have much influence upon the characteristics of pyrolytic-chromatography, which in comparing with the characteristics of pyrolytic-chromatography from pure kerogen ( without adding any minerals ) , following changes are recognized. 1. rapid decrease in alkene, 2. decrease in macromolecular alkane, 3. increase in small-molecular alkylbenzen, 4. increase in volatile components.
出处
《石油实验地质》
CAS
CSCD
北大核心
1990年第2期201-205,共5页
Petroleum Geology & Experiment
