2012•Journal of Chongqing University of Science and TechnologyRequires access

Hydrocarbon Source Rock Geochemical Characteristics of Xiasiwan Oilfield in the Ordos Basin

Leng Danfeng

Abstract

Through its CHANG 4+5,CHANG 6,CHANG 7 layers Department Evaluation of source rocks,CHANG 7 layer of hydrocarbon source rocks is organic carbon content,hydrocarbon generation potential and chloroform bitumen A content of higher,organic matter of typeⅠ1-Ⅱ,good hydrocarbon source rocks.Poor hydrocarbon source rocks and good-medium source rocks of CHANG 6 is quite.Hydrocarbon source rock of CHANG 4 +5 is the non-poor source rocks.Their organic matter are type II2-III.Through the recognization of rock pyrolysis Tmax(℃) and Biomarkers,the layers of source rocks have reached a mature-high mature.

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Key concepts: Source rock, Hydrocarbon, Geology, Organic matter, Geochemistry, Pyrolysis, Structural basin, Total organic carbon