The Application of Sensitivity Analysis in the Source Rock Maturity History Simulation：An Example from Paleozoic Marine Source Rock of Puguang-5 Well in the Northeast of Sichuan Basin

详细信息   

• 责任者：Rao Song (State Kay Laboratory of Lithospheric Evolution ; Institute of Geology and Geophysics ; Chinese Academy of Sciences Beifing 100029 ; China) ; Tang Xiaoyin
• 刊名：Chinese Journal of Geology
• 出版年：2011
• 卷期：46(1)
• 关键词：烃源岩 ; source rocks ; 四川 ; Sichuan Province
• 页码：p.213-225
• 图表：4 illus., 1 table, 36 refs.
• 分类号：1003
• issnNo：ISSN0563-5020
• isbnNo：CN11-1937/P

摘要

By analyzing the influence of input model parameters to the output results, the sensitive parameters in the source rock maturity history simulation can be determined. In this paper, for an example of Puguang-5 well, the authors carry out the sensitivity analysis of erosion thickness during tectonic movements, paleo-surface temperature and paleo-geothermal gradient in the maturity history simulation of the Palaeozoic marine source rock in the northeast of Sichuan Basin, using Easy% Ro chemical kinetic model. The results showed that the present maturity of the Palaeozoic marine source rocks is fully controlled by the erosion thickness during Late-Yanshan to Himalayan movement (since Late Cretaceous), paleo-surface temperature and paleo-geothermal gradient during the late Early Cretaceous, while it is nothing to do with other factors.