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2010•Journal of Chengdu University of TechnologyRequires access

Evaluation of the source rocks from the Lower Cretaceous coal measure strata in the Suibin depression of Sanjiang basin,China

Minghui Liu

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Abstract

According to the thermal decomposition analysis achievements of the mudstone,carbonaceous mudstone and coal samples gathered from the Lower Cretaceous coal measure strata of Well Bincan 1 and Well Sui D1 in the Suibin depression,this paper analyses the organic matter abundance,type and maturation with TOC,S1(the absorption hydrocarbon),S2(the hydrocarbon of kerogen decomposition) and IH(Hydrogen Index,S2/TOC).An absolute majority of samples have the ranges of organic richness from medium level to high level.The result of above analysis indicates that the Lower Cretaceous coal measure strata of Suibin depression,including the Lower Cretaceous Chengzihe Formation and Muleng Formation are the coal measure source rocks with a high hydrocarbon generating potential.

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What this paper is about

According to the thermal decomposition analysis achievements of the mudstone,carbonaceous mudstone and coal samples gathered from the Lower Cretaceous coal measure strata of Well Bincan 1 and Well Sui D1 in the Suibin depression,this paper analyses the organic matter abundance,type and maturation with TOC,S1(the absorption hydrocarbon),S2(the hydrocarbon of kerogen decomposition) and IH(Hydrogen Index,S2/TOC).An absolute majority of samples have the ranges of organic richness from medium level to high level.The result of above analysis indicates that the Lower Cretaceous coal measure strata of Suibin depression,including the Lower Cretaceous Chengzihe Formation and Muleng Formation are the coal measure source rocks with a high hydrocarbon generating potential.

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Available abstract

According to the thermal decomposition analysis achievements of the mudstone,carbonaceous mudstone and coal samples gathered from the Lower Cretaceous coal measure strata of Well Bincan 1 and Well Sui D1 in the Suibin depression,this paper analyses the organic matter abundance,type and maturation with TOC,S1(the absorption hydrocarbon),S2(the hydrocarbon of kerogen decomposition) and IH(Hydrogen Index,S2/TOC).An absolute majority of samples have the ranges of organic richness from medium level to high level.The result of above analysis indicates that the Lower Cretaceous coal measure strata of Suibin depression,including the Lower Cretaceous Chengzihe Formation and Muleng Formation are the coal measure source rocks with a high hydrocarbon generating potential.

Key concepts: Kerogen, Cretaceous, Source rock, Geology, Coal measures, Coal, Hydrocarbon, Organic matter

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Evaluation of the source rocks from the Lower Cretaceous coal measure strata in the Suibin depression of Sanjiang basin,China — Research Paper | ScholarLens