Water Role and Its Influence on Hydrogen Isotopic Composition of Natural Gas during Gas Generation
基金项目:

This research is financially aided by the National Natural Science Foundation of China (No. 41002044), the Specialized Research Fund for the Doctoral Program of Higher Education of China (No. 20102322120003), and the Foundation for University Key Teacher of Heilongjiang Province of China (No. 1251G003). We thank the two reviewers for their constructive comments.


Water Role and Its Influence on Hydrogen Isotopic Composition of Natural Gas during Gas Generation
Author:
  • LI Jijun

    LI Jijun

    1 College of Earth Sciences, Northeast Petroleum University, Daqing, Heilongjiang 163318, China; 2 Luliang Operating District of Xinjiang Oilfield Company, Karamay, Xinjiang 834000, China; 3 Exploration and Development Research Institute, Daqing Oilfield Company Ltd., Daqing, Heilongjiang 163712, China
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  • LU Shuangfang

    LU Shuangfang

    1 College of Earth Sciences, Northeast Petroleum University, Daqing, Heilongjiang 163318, China; 2 Luliang Operating District of Xinjiang Oilfield Company, Karamay, Xinjiang 834000, China; 3 Exploration and Development Research Institute, Daqing Oilfield Company Ltd., Daqing, Heilongjiang 163712, China
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  • WU Wei

    WU Wei

    1 College of Earth Sciences, Northeast Petroleum University, Daqing, Heilongjiang 163318, China; 2 Luliang Operating District of Xinjiang Oilfield Company, Karamay, Xinjiang 834000, China; 3 Exploration and Development Research Institute, Daqing Oilfield Company Ltd., Daqing, Heilongjiang 163712, China
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  • XUE Haitao

    XUE Haitao

    1 College of Earth Sciences, Northeast Petroleum University, Daqing, Heilongjiang 163318, China; 2 Luliang Operating District of Xinjiang Oilfield Company, Karamay, Xinjiang 834000, China; 3 Exploration and Development Research Institute, Daqing Oilfield Company Ltd., Daqing, Heilongjiang 163712, China
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  • XU Qingxia

    XU Qingxia

    1 College of Earth Sciences, Northeast Petroleum University, Daqing, Heilongjiang 163318, China; 2 Luliang Operating District of Xinjiang Oilfield Company, Karamay, Xinjiang 834000, China; 3 Exploration and Development Research Institute, Daqing Oilfield Company Ltd., Daqing, Heilongjiang 163712, China
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  • GENG Jie

    GENG Jie

    1 College of Earth Sciences, Northeast Petroleum University, Daqing, Heilongjiang 163318, China; 2 Luliang Operating District of Xinjiang Oilfield Company, Karamay, Xinjiang 834000, China; 3 Exploration and Development Research Institute, Daqing Oilfield Company Ltd., Daqing, Heilongjiang 163712, China
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  • YU Yinghua

    YU Yinghua

    1 College of Earth Sciences, Northeast Petroleum University, Daqing, Heilongjiang 163318, China; 2 Luliang Operating District of Xinjiang Oilfield Company, Karamay, Xinjiang 834000, China; 3 Exploration and Development Research Institute, Daqing Oilfield Company Ltd., Daqing, Heilongjiang 163712, China
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Fund Project:

This research is financially aided by the National Natural Science Foundation of China (No. 41002044), the Specialized Research Fund for the Doctoral Program of Higher Education of China (No. 20102322120003), and the Foundation for University Key Teacher of Heilongjiang Province of China (No. 1251G003). We thank the two reviewers for their constructive comments.

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    摘要:

    In order to discuss the role and influence of water during the generation of natural gas, the participation mechanism of water during the evolution of organic matter and its influences were summarized. In addition, we carried out an anhydrous cracking experiment of oil extracted from the Feixianguan Formation source rock in a closed system, which led to the establishment of the kinetic models for describing carbon and hydrogen isotopic fractionation during gas generation from organic matter. The models were calibrated and then applied to the northeastern Sichuan Basin. By combining a series of gas generation experiments from octadecane pyrolysis without water or with distilled water in varying mass proportions, several results were proved: (1) the hydrogen isotopic composition of natural gas becomes lighter with the participation of formation water; (2) we can quantitatively study the hydrogen isotopic fractionation with the kinetic model for describing carbon isotopic fractionation; (3) more abundant and reliable geological information can be obtained through the combined application of carbon and hydrogen isotopic indices.

    Abstract:

    In order to discuss the role and influence of water during the generation of natural gas, the participation mechanism of water during the evolution of organic matter and its influences were summarized. In addition, we carried out an anhydrous cracking experiment of oil extracted from the Feixianguan Formation source rock in a closed system, which led to the establishment of the kinetic models for describing carbon and hydrogen isotopic fractionation during gas generation from organic matter. The models were calibrated and then applied to the northeastern Sichuan Basin. By combining a series of gas generation experiments from octadecane pyrolysis without water or with distilled water in varying mass proportions, several results were proved: (1) the hydrogen isotopic composition of natural gas becomes lighter with the participation of formation water; (2) we can quantitatively study the hydrogen isotopic fractionation with the kinetic model for describing carbon isotopic fractionation; (3) more abundant and reliable geological information can be obtained through the combined application of carbon and hydrogen isotopic indices.

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LI Jijun, LU Shuangfang, WU Wei, XUE Haitao, XU Qingxia, GENG Jie, YU Yinghua.2011. Water Role and Its Influence on Hydrogen Isotopic Composition of Natural Gas during Gas Generation[J]. ACTA GEOLOGICA SINICA(English edition),85(5):1203~1210

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  • 收稿日期:2010-06-11
  • 最后修改日期:2010-11-15
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