A PRELIMINARY STUDY ON THE ACTIVATION ENERGY PARAMETERS OF GLOEOCAPSOMORPHA KEROGEN IN ORDOVICIAN SOURCE BEDS
-
摘要: 我国下古生界烃源层特别是碳酸盐岩地层分布十分广泛,但碳酸盐岩分布区的地球化学评价一直是个薄弱环节,重要原因之一是由于碳酸盐岩的高过成熟性,其地化参数很难取准。本文选用奥陶系烃源层中具有普遍分布意义的低成熟的粘球形藻(G.prisca)干酪根进行热解实验,取得了一系列化学反应动力学参数(活化能E、指前因子A随降解率X的变化关系),这些参数对正确评价下古生界碳酸盐岩地层的油气潜力和生排烃史具有明显的借鉴作用。Abstract: The distribution of Low Paleozoic source beds,especially carbonate rock strata,is very wide in our country.But the geochemical evaluation for the distributive area of carbonate rocks is always a vulnerable spot.One of the important reasons is that it is difficult to obtain the accurate geochemical parameters due to the high overmaturity of carbonate rocks.In this pater,the lowmatured Gloeocapsomorpha kerogen of general distributive significance in Ordovician source beds is selected for pyrolysis experiment.A series of dynamic parameters(activation energy E,the changing relationship of frequency factor A to degradability X)of chemical reactions obtained have an obvious use for reference to the correct evaluation of oil/gas potential and hydrocarbon generation/hydrocarbon discharging history in Low Paleozoic carbonate rock strata.
-
[1] 王启军等.油气地球化学.武汉:中国地质大学出版社,1988 [2] 李执.干酪根热降解反应动力学参数测定的研究.石油实验地质,1982,4(3):177～190 [3] 张有成.碳酸盐烃源岩热解生烃动力学的初步研究.中科院地化所有机地化开放实验室研究年报,北京:科学出版社,1988,229～236 [4] 郝石生、高岗、王飞宇等.高过成熟海相烃源岩.北京:石油工业出版社,1996 [5] 傅家谟、秦匡宗.干酪根地球化学.广州:广东科技出版社,1995 [6] Maritin G.Fow ler.The influence of Gloeocap somorp ha prisca on the organ ic geochemistry of oils and organic-rich rocks of late Ordovician age from Canada,Springer-Verlag Berlin Heidelberg,1992:336～356 -
计量
- 文章访问数: 668
- HTML全文浏览量: 61
- PDF下载量: 306
- 被引次数: 0
下载:
苏公网安备32021102000780号