Application of geological analogy to assess oil shale resources of depression basin：an example from Upper Cretaceous Songliao Basin
Abstract：The geological analogy was employed to evaluate the oil shale resources,in order to improve the prediction precision in middle-low exploration basin.Main geological parameters of controlling the generation and enrichment of oil shale was optimized in terms of the development characteristics of oil shale and its metallogeny and enrichment mechanisms in the Songliao depression basin.Moreover,these geological parameters were quantified through the qualitative binary status approach to calculate analogical coefficients and its distribution function of predicting area.Finally,combination of sampling from Monte-carlo method was used to estimate oil shale resources of predicting area.The results show that oil shale resources of Songliao Basin is 7.712 3~2 281.014 2 gigaton during the whole probability interval,the oil shale resources from the first ＂National Oil Shale Evaluation＂ matches 65% of probability from above estimation.In contrast,that from direct square method matches 61% of probability,which is slight higher than the former.Therefore,the geological analogy is a promising approach to evaluate oil shale resources of middle-low exploration basin,and it can bring the estimate with successful hold.
Keywords：Songliao Basinoil shalegeological analogymetallogenic and enriching mechanismmonte-carlo method
Publication Date：2011-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)