Retention potential of oil group-type in coals
Retention potential of oil group-type in coals
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发表时间：
2008
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通讯作者：
Zou Yan
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作者：
Zou Yan
研究了煤及其干酪根中油族组分的滞留潜力。将原油分为五种族组分。应用聚合物溶液理论来解释煤中油族组分的滞留潜力。使用具有不同溶度参数的溶剂来测定低、中、高成熟度煤及其干酪根的溶胀率。获得了不同成熟度煤及其干酪根的溶胀率特征以及煤及其干酪根中油族组分的滞留潜力。镜质体反射率在0.40% - 1.25%之间的煤的溶胀率随成熟度增加而降低。然而，当煤的反射率大于1.25%时，溶胀率随成熟度增加而增大。在“油窗”内，煤及其干酪根的溶胀率随成熟度增加而降低，这表明煤中油族组分的滞留潜力降低。对于具有中等溶度参数的油族组分，滞留潜力降低了约20%。
The retention potential of the oil group-type in coals and their kerogen is studied. The crude oil is divided into five group-types. The polymer solution theory is applied to interpret the retention potential of the oil group-type in coals. The solvents with different solubility parameters are used to determine the swelling ratio of coals and their kerogen with low, middle and high maturity. The characteristics of the swelling ratios of coals and their kerogen with different maturity and the retention potential of the oil group-types in the coals and their kerogen are obtained. The swelling ratio of coals with the vitrinite reflectance from 0.40%to 1.25%decreases with increasing maturation. However, the swelling ratios increase with increasing maturation when the reflectance of coals is greater than 1.25%. In the "oil window", the swelling ratios of the coal and their kerogen decrease with increasing maturation, indicating that the retention potential of the oil group-types decrease in the coals. The retention potential decreases by about 20%for the oil group-type with middle solubility parameter.