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现行的干酪根分类体系有许多缺点,尤其表现在无定形干酪根方面,至今尚未按与油气形成的关系进行划分。建立在密度分离、元素成分和光学特性基础上的实用分类法则以生烃潜力标记判定干酪根。实用分类法首先将全部干酪根分成类脂组和腐殖组。类脂组又细分出高类脂组(生油潜力很高)、中类脂组(易生油)、次类脂组(易生气)和低类脂组(无生烃潜力);腐殖型干酪根也同样可分出由高腐殖组(可生气)、中腐殖组(主要生气)和低腐殖组(无生烃潜力的有机物质)组成的三个亚组。
The current kerogen classification system has many shortcomings, especially in the area of amorphous kerogen, which has not yet been divided according to the relationship with oil and gas formation. A practical taxonomy established on the basis of density separation, elemental composition and optical properties determines kerogen with hydrocarbon potential markers. Practical taxonomy first of all the kerogen is divided into lipid group and humic group. The lipid group was further subdivided into high lipid group (high potential for oil generation), middle lipid group (easy lipid generation), sub-lipid group (easy to generate gas) and low lipid group (no hydrocarbon generation potential) The kerogen can also be divided into three subgroups consisting of high humic group (can be angry), medium humus group (mainly angry), and low humus group (organic matter with no hydrocarbon generation potential).