西南石油大学学报(自然科学版) ›› 1991, Vol. 13 ›› Issue (4): 21-30.DOI: 10.3863/j.issn.1000-2634.1991.04.003

• 论文 • 上一篇    下一篇

南盘江坳陷安然构造生物礁中的沥青及油源对比

罗槐章 齐敬文 杨芝林
  

  1. 泣黔桂石油地质科研所
  • 收稿日期:1990-09-05 修回日期:1900-01-01 出版日期:1991-11-20 发布日期:1991-11-20

BITUMEN AND OIL SOURCE CORRELATION OF ANRAN REEFS IN NANPAN RIVER DEPRESSION

Luo Huai-zhang Qi Jing-wen Yang Zi-ling
  

  1. Oil Geology Institute of Yunnan; Guizhou & Guangxi
  • Received:1990-09-05 Revised:1900-01-01 Online:1991-11-20 Published:1991-11-20

摘要:

安然构造生物礁中的沥青,分布于礁岩成岩期后的各类孔隙中,具有格架溶蚀孔洞沥青、裂缝型沥青和裂缝——晶洞混合型沥青三种产状。沥青的显微结构为:中间相球粒、融并的中间相球体,具镶嵌、棒状和片状结构。经沥青的元素分析、X衍射,反射率测定、微量元素和芳烃分析,表明安然生物礁中的沥青具有机质过成熟的特征。通过沥青的油源分析,初步证实安然二叠系茅口组的科—1沥青的油源来自下伏中泥盆统生油岩;上二叠统长兴组的Md—1裂缝沥青的油源来自上覆中三叠的生油岩;有一部分沥青显示了混源特征。

关键词: 生物礁, 沥青, 中间相变, 徽观结构, 热演化, 芳香烃组成分析, 油源对比

Abstract:

The bitumen in Anran reefs which distributes in different pores consists of framework dissolution pore-cave filling type, fissure filling type and fissuredruse filling type. Its microtexure is of intermediate phase pellets, welded pellets with mosaic texture, stick-like and slice-like texture. By chemical analysis,X-ray eiffraction and reflectance determination, trace element analysis, as well as aromatic hydrocarbon analysis, it is revealed that the bitumen in Anran reefs is characserized by overmature organic matter.By oil source reseach it is preliminarily confirmed that the oil source of Ke-1 bitumen in Maokou formation of Lower Permian is from underlying Middle Devonian source rock,the Md-1 fissure filling bitumen in Changxin formation of Upper Permian comes from the overlying MiddleTriassic source rock,and some bitumen is characterized by mixed sources.


Key words: Reef, Bitumen, Intermediate phase change, Microtexture, Thermal evolution, Aromatic hydrocarbon, Component analysis, Oil source correlation

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