Processing math: 100%
Advanced Search
Volume 28 Issue 1
. 
Turn off MathJax
Article Contents
Abstract
References
Article Navigation >  Acta Sedimentologica Sinica  > 2010  >  28(1): 1-9

HUANG Sijing. Chemical Thermodynamics Foundation of Retrograde Solubility for Carbonate:Solution Media Related to H2S and Comparing to CO2[J]. Acta Sedimentologica Sinica, 2010, 28(1): 1-9.
Citation: HUANG Sijing. Chemical Thermodynamics Foundation of Retrograde Solubility for Carbonate:Solution Media Related to H2S and Comparing to CO2[J]. Acta Sedimentologica Sinica, 2010, 28(1): 1-9.
shu

Chemical Thermodynamics Foundation of Retrograde Solubility for Carbonate:Solution Media Related to H2S and Comparing to CO2

  • State Key Laboratory of Oil/Gas Reservoir Geology and Exploitation, Institute of Sedimentary Geology, Chengdu University of Technology, Chengdu 610059

More Information
  • Corresponding author: HUANG Sijing
  • Received Date: 1900-01-01
  • Rev Recd Date: 1900-01-01
  • Publish Date: 2010-02-10
  • In this paper, the equilibrium constant of the reactions related to the H2S (g) /H2S (aq) / HS / H+ / S2 system at various temperatures has been calculated as a foundation of increment of Gibbs free energy. The relationship between pH, fluid pressure and buried depth during the dissolution of calcite and dolomite in acetic medium are attained. The different contributions of CO2 and H2S to H+
    and different dissolution ability to carbonate of the two media under the conditions from surface to deep buried are described as follow: 1) Temperature and (or) PCO2 increasing will lead to the elevation of H+
    that need to dissolve the calcite and dolomite whether CO2 or H2S as a dissolvent. At relatively deep burial conditions, high PCO2 led by high fluid pressure would make the carbonate dissolution more difficult. CO2 increasing may cause the precipitation of carbonate minerals instead of the dissolution if H+
    was buffered; 2) The retrograde solubility model of carbonate minerals is tenable on chemistry no matter what type of acid medium. Low temperature diagenesis environment, upward migration of deep hydrothermal and the tectonic uplift would result in the temperature decreasing (ΔT) and improve the solution ability of H2S and CO2 (including other acid medium) to carbonate minerals; 3) In surface and near surface (the depth range of several hundred meters), the H+
    contributed by dissolved CO2 is slightly higher than that contributed by dissolved H2S when CO2 and H2S coexist. Acid fluid related to CO2 is relatively important for the dissolution of carbonate minerals, however, the H+
    contributed by dissolved H2S is much greater than that contributed by dissolved CO2 in deep burial, especially when the depth is more than 4000 m. Deep dissolution of carbonate would be more developed in deep buried condition where sulfate reduction exists, which could be one of the important reasons why secondary porosity develop in deep burial, NE Sichuan.
  • Created with Highcharts 5.0.7Amount of accessChart context menuAbstract Views, HTML Views, PDF Downloads StatisticsAbstract ViewsHTML ViewsPDF Downloads2024-062024-072024-082024-092024-102024-112024-122025-012025-022025-032025-032025-040246810
    Created with Highcharts 5.0.7Chart context menuAccess Class DistributionFULLTEXT: 10.7 %FULLTEXT: 10.7 %META: 81.7 %META: 81.7 %PDF: 7.6 %PDF: 7.6 %FULLTEXTMETAPDF
    Created with Highcharts 5.0.7Chart context menuAccess Area Distribution其他: 3.8 %其他: 3.8 %其他: 1.7 %其他: 1.7 %China: 0.7 %China: 0.7 %United States: 1.4 %United States: 1.4 %三门峡: 0.3 %三门峡: 0.3 %东莞: 0.3 %东莞: 0.3 %中山: 0.3 %中山: 0.3 %九江: 0.3 %九江: 0.3 %兰州: 0.3 %兰州: 0.3 %凉山: 0.3 %凉山: 0.3 %包头: 0.3 %包头: 0.3 %北京: 8.3 %北京: 8.3 %台州: 0.3 %台州: 0.3 %合肥: 1.0 %合肥: 1.0 %哥伦布: 0.3 %哥伦布: 0.3 %大连: 0.3 %大连: 0.3 %山景城: 0.3 %山景城: 0.3 %开封: 0.3 %开封: 0.3 %张家口: 2.1 %张家口: 2.1 %德州: 0.3 %德州: 0.3 %成都: 0.7 %成都: 0.7 %扬州: 0.3 %扬州: 0.3 %承德: 0.3 %承德: 0.3 %杭州: 0.3 %杭州: 0.3 %武汉: 0.3 %武汉: 0.3 %汕头: 0.3 %汕头: 0.3 %海口: 0.3 %海口: 0.3 %淄博: 0.7 %淄博: 0.7 %深圳: 0.3 %深圳: 0.3 %湖州: 1.0 %湖州: 1.0 %石家庄: 0.3 %石家庄: 0.3 %芒廷维尤: 39.7 %芒廷维尤: 39.7 %苏州: 0.7 %苏州: 0.7 %衢州: 0.3 %衢州: 0.3 %西宁: 26.9 %西宁: 26.9 %西雅图: 0.3 %西雅图: 0.3 %贵阳: 0.3 %贵阳: 0.3 %遂宁: 0.3 %遂宁: 0.3 %郑州: 0.3 %郑州: 0.3 %重庆: 0.7 %重庆: 0.7 %金华: 0.3 %金华: 0.3 %长春: 0.7 %长春: 0.7 %青岛: 0.7 %青岛: 0.7 %其他其他ChinaUnited States三门峡东莞中山九江兰州凉山包头北京台州合肥哥伦布大连山景城开封张家口德州成都扬州承德杭州武汉汕头海口淄博深圳湖州石家庄芒廷维尤苏州衢州西宁西雅图贵阳遂宁郑州重庆金华长春青岛
通讯作者: 陈斌, bchen63@163.com
  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

  1. 本站搜索
  2. 百度学术搜索
  3. 万方数据库搜索
  4. CNKI搜索
Get Citation
PDF
XML

Article Metrics

Article views(2471) PDF downloads(1464) Cited by()

Proportional views
Related
Publishing history
  • Received:  1900-01-01
  • Revised:  1900-01-01
  • Published:  2010-02-10

Chemical Thermodynamics Foundation of Retrograde Solubility for Carbonate:Solution Media Related to H2S and Comparing to CO2

  • State Key Laboratory of Oil/Gas Reservoir Geology and Exploitation, Institute of Sedimentary Geology, Chengdu University of Technology, Chengdu 610059
    Corresponding author: HUANG Sijing
  • Received Date: 1900-01-01
  • Rev Recd Date: 1900-01-01
  • Publish Date: 2010-02-10

Abstract: In this paper, the equilibrium constant of the reactions related to the H2S (g) /H2S (aq) / HS / H+ / S2 system at various temperatures has been calculated as a foundation of increment of Gibbs free energy. The relationship between pH, fluid pressure and buried depth during the dissolution of calcite and dolomite in acetic medium are attained. The different contributions of CO2 and H2S to H+

and different dissolution ability to carbonate of the two media under the conditions from surface to deep buried are described as follow: 1) Temperature and (or) PCO2 increasing will lead to the elevation of H+
that need to dissolve the calcite and dolomite whether CO2 or H2S as a dissolvent. At relatively deep burial conditions, high PCO2 led by high fluid pressure would make the carbonate dissolution more difficult. CO2 increasing may cause the precipitation of carbonate minerals instead of the dissolution if H+
was buffered; 2) The retrograde solubility model of carbonate minerals is tenable on chemistry no matter what type of acid medium. Low temperature diagenesis environment, upward migration of deep hydrothermal and the tectonic uplift would result in the temperature decreasing (ΔT) and improve the solution ability of H2S and CO2 (including other acid medium) to carbonate minerals; 3) In surface and near surface (the depth range of several hundred meters), the H+
contributed by dissolved CO2 is slightly higher than that contributed by dissolved H2S when CO2 and H2S coexist. Acid fluid related to CO2 is relatively important for the dissolution of carbonate minerals, however, the H+
contributed by dissolved H2S is much greater than that contributed by dissolved CO2 in deep burial, especially when the depth is more than 4000 m. Deep dissolution of carbonate would be more developed in deep buried condition where sulfate reduction exists, which could be one of the important reasons why secondary porosity develop in deep burial, NE Sichuan.

HUANG Sijing. Chemical Thermodynamics Foundation of Retrograde Solubility for Carbonate:Solution Media Related to H2S and Comparing to CO2[J]. Acta Sedimentologica Sinica, 2010, 28(1): 1-9.
Citation: HUANG Sijing. Chemical Thermodynamics Foundation of Retrograde Solubility for Carbonate:Solution Media Related to H2S and Comparing to CO2[J]. Acta Sedimentologica Sinica, 2010, 28(1): 1-9.
shu

    HTML

Catalog

    Links

    Journal Online

    Contact Us

    • Website Copyright © 2011 Editorial Office of Acta Sedimentologica Sinica
    • Address: 8 Tianshui Middle Road, Lanzhou
    • Post code: 730000   Tel:（0931）8264231
    • 陇ICP备2021001824号-28
    • 甘公网安备 62010202000673号
    Wechat

    Email alert

    RSS

    Supported by: Beijing Renhe Information Technology Co. Ltd  

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return