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Article Navigation >  Acta Sedimentologica Sinica  > 1998  >  16(3): 72-74,79

Fang Dequen, Song Yan, Zeng Fangang, Wang Guanyu. The Diffusion Model and Computation Method of Diffusion Quantification for Natural Gas[J]. Acta Sedimentologica Sinica, 1998, 16(3): 72-74,79.
Citation: Fang Dequen, Song Yan, Zeng Fangang, Wang Guanyu. The Diffusion Model and Computation Method of Diffusion Quantification for Natural Gas[J]. Acta Sedimentologica Sinica, 1998, 16(3): 72-74,79.
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The Diffusion Model and Computation Method of Diffusion Quantification for Natural Gas

  • 1.

    Research Institute of Petroleum Exploration and Development, CNPC, Beijing 100083;

  • 2.

    Geology Department of Peking University. Beijing 100871

  • Received Date: 1997-10-21
  • Rev Recd Date: 1998-01-12
  • Publish Date: 1998-12-10
  • Cap rock is the necessary condition of the gas reservoir preservation, and hydrocarbon concentration confining is one important confining mechanism. The geological and mathematical model of natural gas diffusion has been set up system atically. The natural gas diffusion is mainly through the water, so the solubility of the natural gas in water can be regarded as theinitial gas concentration in the cap rock. The solubility of the natural gas can be calculate by the determination of the temperature, pressure and salini-ty of the stratum. The source rock is usually of relatively larger solubility, so it is the best cap rock.
  • [1] .王绍亭. 动量、热量与质量传递. 天津: 天津科学技术出版社, 1986
    [2] .Krooks B M. The quantification of diffusive hydrocarbon losses through cap rocks of natural gas reservoir-A reevaluation, AAPG, 1992, 76: 403～406
    [3] .黄志龙, 郝石生. 天然气扩散与浓度封闭作用的研究. 石油学报, 1996, 17(4): 36～40
    [4] .郝石生, 张振英. 天然气在地层水中的溶解度变化特征及地质意义. 石油学报, 1993, 14(2): 12～22
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  • Received:  1997-10-21
  • Revised:  1998-01-12
  • Published:  1998-12-10

The Diffusion Model and Computation Method of Diffusion Quantification for Natural Gas

  • 1. Research Institute of Petroleum Exploration and Development, CNPC, Beijing 100083;
  • 2. Geology Department of Peking University. Beijing 100871
  • Received Date: 1997-10-21
  • Rev Recd Date: 1998-01-12
  • Publish Date: 1998-12-10

Abstract: Cap rock is the necessary condition of the gas reservoir preservation, and hydrocarbon concentration confining is one important confining mechanism. The geological and mathematical model of natural gas diffusion has been set up system atically. The natural gas diffusion is mainly through the water, so the solubility of the natural gas in water can be regarded as theinitial gas concentration in the cap rock. The solubility of the natural gas can be calculate by the determination of the temperature, pressure and salini-ty of the stratum. The source rock is usually of relatively larger solubility, so it is the best cap rock.

Fang Dequen, Song Yan, Zeng Fangang, Wang Guanyu. The Diffusion Model and Computation Method of Diffusion Quantification for Natural Gas[J]. Acta Sedimentologica Sinica, 1998, 16(3): 72-74,79.
Citation: Fang Dequen, Song Yan, Zeng Fangang, Wang Guanyu. The Diffusion Model and Computation Method of Diffusion Quantification for Natural Gas[J]. Acta Sedimentologica Sinica, 1998, 16(3): 72-74,79.
shu

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