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SOURCE ROCK EVALUATION OF COAL-MEASURES STRATA IN KUQA DEPRESSION OF TARIM BASIN

Sun Jin, Guohong Liu

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Abstract

According to the thermal decomposition achievement of mudstone, carbonaceous mudstone and coal samples, which are taken in the Jurassic coal-measure strata of Yang 1 well and Tougeerming outcrop in Kuqa depression, the organic matter abundance ,type and maturation have been analysed with TOC,S 1 (the absorption hydrocarbon), S 2 ( the hydrocarbon of kerogen decomposition) and I H(Hydrogen Index, S 2/TOC ).An absolute majority of samples have the features of high organic richness. The result of above analysis indicates that the Jurassic coal-measure strata of Kuqa depression is the coal-measure source rock of high hydrocarbon generating potential.

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What this paper is about

According to the thermal decomposition achievement of mudstone, carbonaceous mudstone and coal samples, which are taken in the Jurassic coal-measure strata of Yang 1 well and Tougeerming outcrop in Kuqa depression, the organic matter abundance ,type and maturation have been analysed with TOC,S 1 (the absorption hydrocarbon), S 2 ( the hydrocarbon of kerogen decomposition) and I H(Hydrogen Index, S 2/TOC ).An absolute majority of samples have the features of high organic richness. The result of above analysis indicates that the Jurassic coal-measure strata of Kuqa depression is the coal-measure source rock of high hydrocarbon generating potential.

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Available abstract

According to the thermal decomposition achievement of mudstone, carbonaceous mudstone and coal samples, which are taken in the Jurassic coal-measure strata of Yang 1 well and Tougeerming outcrop in Kuqa depression, the organic matter abundance ,type and maturation have been analysed with TOC,S 1 (the absorption hydrocarbon), S 2 ( the hydrocarbon of kerogen decomposition) and I H(Hydrogen Index, S 2/TOC ).An absolute majority of samples have the features of high organic richness. The result of above analysis indicates that the Jurassic coal-measure strata of Kuqa depression is the coal-measure source rock of high hydrocarbon generating potential.

Key concepts: Kerogen, Geology, Source rock, Coal measures, Coal, Outcrop, Hydrocarbon, Tarim basin

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