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    北塘凹陷沙三段烃源岩特征实验评价

    浙江双色球走势图2 www.hhsas.com 北塘凹陷沙三段烃源岩特征实验评价

    Advances in Geosciences 地球科学前沿, 2019, 9(5), 351-359 Published Online May 2019 in Hans. //www.hhsas.com/journal/ag https:////www.hhsas.com/10.12677/ag.2019.95039

    北塘凹陷沙三段烃源岩特征实验评价

    北塘凹陷沙三段烃源岩特征实验评价

    北塘凹陷沙三段烃源岩特征实验评价

    文章引用: 杨爱英. 北塘凹陷沙三段烃源岩特征实验评价[J]. 地球科学前沿, 2019, 9(5): 351-359.

    DOI: 10.12677/ag.2019.95039

    Experimental Evaluation of Hydrocarbon Source Rocks in the Third Member of Shahejie Formation, Beitang Depression

    Aiying Yang

    College of Earth Sciences, Yangtze University, Jinzhou Hubei

    Received: May 1st , 2019; accepted: May 15th , 2019; published: May 22nd , 2019

    Abstract

    According to the source rock samples of the Third Member of Shahejie formation in Beitang De-pression, the organic matter abundance, types and maturity were discussed. The organic geo-chemical characteristics of source rocks in the Third Member of Shahejie formation were syste-matically analyzed through effectively determining the paralysis of rocks, organic carbon, chloro-form asphalt “A”, vitrinite reflectance of sedimentary rocks, kerogen macerals and types. The re-sults show that the thickness of source rocks in the Third Member of Shahejie formation is rela-tively large with nearly 1000 - 1500 m. The TOC content is 0.4% - 2.0%, and the total content of source rocks is relatively high. The main types of source rocks are type I and type II kerogen, and the organic matter type is better. The lower part of the Third Member of Shahejie formation is the main source rock in Beitang Sag, with high organic matter abundance and ideal conversion effi-ciency. The content of sapropelic and crustal formations is positively correlated with hydrocarbon generation potential of source rocks, while vitrinite content is inversely correlated with hydro-carbon generation capacity of source rocks. It is further verified that the main source rocks are sapropelic and crustal formations. The main sags of source rocks in the Third Member of Shahejie formation belong to late hydrocarbon expulsion with large hydrocarbon expulsion and good prospects for exploration and development. Keywords

    Beitang Depression, Third Member of Shahejie Formation, Organic Matter Abundance, Organic Matter Type, Source Rock

    北塘凹陷沙三段烃源岩特征实验评价

    杨爱英

    长江大学地球科学学院,湖北 荆州

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