The Further Understanding of Carboniferous Source Rocks in
Wulungu Depression

doi:10. 3863/j. issn. 1674 – 5086. 2013. 05. 001

Abstract

Abstract:

Whether Carboniferous source rock develops and its developing stratigraphic position of the real source rock in
Wulungu Depression are always in dispute. The Jiangbasitao formation source rocks found in the north of Lun 6 well verify
that Carboniferous source rock does exist in this area. The mudstone and the silty mudstone deposited in the shore and shallow
sea are the main source rock types. The source rocks are medium-good with the average organic carbon in 1.23%. The type of
organic matter is mainly II1 type， which contributes to oil generation. The source rocks are in the high-maturity stage. Some
geochemical characteristics including saturated hydrocarbon and aromatic hydrocarbon are that the source rocks are developed
in the reductive and brackish water environment. It indicates that the shore and shallow sea is favorable to source rock， which
facilitates the abundant source rocks forming and possess good prospects for exploration.

Key words: Carboniferous, source rock, hydrocarbon potential, biomarker, high-maturity

CLC Number:

null

Zhang Kuihua1，2, Li Yanli2, Zhang Guanlong2, Bai Zhongcai2. The Further Understanding of Carboniferous Source Rocks in
Wulungu Depression[J]. 西南石油大学学报(自然科学版), DOI: 10. 3863/j. issn. 1674 – 5086. 2013. 05. 001.

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