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Geostatistic Recognition of Genetically Distinct Shale Facies in the Ordos Basin, North ChinaNormal access

Author: S. Lin
Event name: GeoBaikal 2018
Session: Poster Session
Publication date: 11 August 2018
DOI: 10.3997/2214-4609.201801984
Organisations: EAGE
Language: English
Info: Extended abstract, PDF ( 502.22Kb )
Price: € 20

In the Chang 7 section of upper Triassic in the Ordos Basin, hierarchical cluster analysis of the 17 selected parameters identifies 3 genetically distinct shale facies. The results of this study demonstrate the power of combined sedimentology, Geochemistry, Mineralogy and Organic Petrology analysis to improve understanding of variations in shales within a single source rock. Hierarchical cluster analysis allowed the definitive classification of 113 shale samples from the study area. The resulting facies were used as a training set to construct a geostatistic decision tree that can be used to assign (1) genetic affinities and (2) a level of confidence in the classification for any additional shale samples that become available.

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