石油勘探与开发2011，Vol.38Issue(2)：203-210,8.
英买力沥青砂岩自生伊利石K-Ar测年与成藏年代
K-Ar dating of authigenic illites and the hydrocarbon accumulation history of the Silurian bituminous sandstone reservoirs in the Yingmaili area,Tarim Basin
张有瑜 1罗修泉2
作者信息
- 1. 中国石油勘探开发研究院
- 2. 中国石油天然气股份有限公司盆地构造与油气成藏重点实验室
- 折叠
摘要
Abstract
The hydrocarbon charge history of the Silurian bituminous sandstone reservoirs in the Yingmaili area was investigated using an integrated approach by combining detailed petrographic analysis (thin section and SEM ), clay mineral XRD characterization, and the modeling of authigenic clay minerals and subsequent K-Ar dating of authigenic illites. The result was correlated within the basin. The ordered mixed-layer illite/smectite (I/S) is dominant in the clay assemblages of the Silurian bituminous sandstones in the Yingmaili area except in local areas. They are authigenic in origin. The authigenic illite ages of the Silurian bituminous sandstone reservoirs range from 255 Ma to 293 Ma, mainly from 277 Ma to 293 Ma, corresponding to the Late Carboniferous to Early Permian, indicating that the primary Silurian oil pools were formed mainly during the late phase of the Early Hercynian to the Late Hercynian. The authigenic illite ages of the Silurian bituminous sandstone reservoirs in the Yingmaili area are consistent with the general characteristics of the age distribution within the basin. The palaeo structural framework and the distribution of hydrocarbon supply center might be one of the key controlling factors for the difference in accumulation times within different areas. The long distance of the Yingmaili area from the hydrocarbon supply center might be one of the main controlling factors for the relatively late accumulation in this area.关键词
英买力地区/志留系沥青砂岩/自生伊利石/K-Ar测年/成藏年代分类
能源科技引用本文复制引用
张有瑜,罗修泉..英买力沥青砂岩自生伊利石K-Ar测年与成藏年代[J].石油勘探与开发,2011,38(2):203-210,8.
