1887
Volume 23, Issue 4
  • ISSN: 1354-0793
  • E-ISSN:

Abstract

High-pressure methane sorption isotherms were performed on a series of Upper Ordovician Wufeng and Lower Silurian Longmaxi shale samples in the Fuling shale gas field to investigate the effects of organic matter content, thermal maturity, clay minerals, pore structure, temperature and pressure on methane sorption capacity. A large number of micropores with a pore width of less than 10 nm are developed within the organic matter, with its abundant specific surface areas as the fundamental factor to enhance the methane sorption capacity. The total organic carbon (TOC)-normalized sorption capacity increases with an increasing equivalent vitrinite reflectance R, but an opposite trend is observed when R is in the highly over-mature stage. The TOC-normalized sorption capacity shows no correlation with the total clay content as well as individual clay minerals. Most of the excess sorption capacity of shales increases with an increasing pressure, exhibits a maxima in the pressure range of 15–17 MPa and then decreases. The sorption isotherms show an obvious decrease in excess sorption capacity with increasing temperature. Moreover, the Langmuir pressure exponentially decreases with the reciprocal of temperature. Based on the Langmuir adsorption model, an empirical formula is established to evaluate the absolute sorption capacity of shales as a function of TOC content, pressure and temperature.

Additional description of experimental data are available at https://doi.org/10.6084/m9.figshare.c.3714040.v2

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2017-03-24
2024-03-29
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References

  1. Ambrose, R.J., Hartman, R.C., Campos, M.D., Akkutlu, I.Y. & Sondergeld, C.H.
    2012. Shale gas-in-place calculations. Part I: New pore-scale considerations. SPE Journal, 17, 219–229.
    [Google Scholar]
  2. Barrett, E.P., Joyner, L.G. & Halenda, P.P.
    1951. The determination of pore volume and area distributions in porous substances. I. Computations from nitrogen isotherms. Journal of the American Chemical Society, 73, 373–380.
    [Google Scholar]
  3. Brunauer, S., Emmett, P.H. & Teller, E.
    1938. Adsorption of gases in multimolecular layers. Journal of the American Chemical Society, 60, 309–319.
    [Google Scholar]
  4. Bustin, R.M. & Clarkson, C.R.
    1998. Geological controls on coalbed methane reservoir capacity and gas content. International Journal of Coal Geology, 38, 3–26.
    [Google Scholar]
  5. Chalmers, G.R.L. & Bustin, R.M.
    2007. The organic matter distribution and methane capacity of the Lower Cretaceous strata of Northeastern British Columbia, Canada. International Journal of Coal Geology, 70, 223–239.
    [Google Scholar]
  6. 2008. Lower Cretaceous gas shales in northeastern British Columbia, Part I: geological controls on methane sorption capacity. Bulletin of Canadian Petroleum Geology, 56, 1–21.
    [Google Scholar]
  7. Curtis, J.B.
    2002. Fractured shale-gas systems. American Association of Petroleum Geologists Bulletin, 86, 1921–1938.
    [Google Scholar]
  8. Curtis, M.E., Cardott, B.J., Sondergeld, C.H. & Rai, C.S.
    2012a. Development of organic porosity in the Woodford Shale with increasing thermal maturity. International Journal of Coal Geology, 103, 26–31.
    [Google Scholar]
  9. Curtis, M.E., Sondergeld, C.H., Ambrose, R.J. & Rai, C.S.
    2012b. Microstructural investigation of gas shales in two and three dimensions using nanometer-scale resolution imaging. American Association of Petroleum Geologists Bulletin, 96, 665–677.
    [Google Scholar]
  10. Do, D.D.
    1998. Adsorption Analysis: Equilibria and Kinetics. Imperial College Press, London.
    [Google Scholar]
  11. Feng, G.X. & Chen, S.J.
    1988. Relationship between the reflectance of bitumen and vitrinite in rock. Natural Gas Industry, 8, 20–25.
    [Google Scholar]
  12. Gasparik, M., Ghanizadeh, A., Bertier, P., Gensterblum, Y., Bouw, S. & Krooss, B.M.
    2012. High-pressure methane sorption isotherms of black shales from the Netherlands. Energy & Fuels, 26, 4995–5004.
    [Google Scholar]
  13. Gasparik, M., Bertier, P., Gensterblum, Y., Ghanizadeh, A., Krooss, B.M. & Littke, R.
    2014. Geological controls on the methane storage capacity in organic-rich shales. International Journal of Coal Geology, 123, 34–51.
    [Google Scholar]
  14. Guo, X.S.
    2014. Enrichment Mode and Exploration Technology in Jiaoshiba Area of Fuling Shale Gas Field. Science Press, Beijing.
    [Google Scholar]
  15. Guo, T.L. & Zeng, P.
    2015. The structural and preservation conditions for shale gas enrichment and high productivity in the Wufeng-Longmaxi Formation, Southeastern Sichuan Basin. Energy Exploration & Exploitation, 33, 259–276.
    [Google Scholar]
  16. Guo, T.L. & Zhang, H.R.
    2014. Formation and enrichment mode of Jiaoshiba shale gas field, Sichuan Basin. Petroleum Exploration and Development, 41, 31–40.
    [Google Scholar]
  17. Guo, X.S., Hu, D.F., Li, Y.P., Liu, R.B. & Wang, Q.B.
    2014. Geological features and reservoiring model of shale gas reservoirs in Longmaxi Formation of the Jiaoshiba Area. Acta Geologica Sinica (English Edition), 88, 1811–1821.
    [Google Scholar]
  18. Hao, F., Zou, H.Y. & Lu, Y.C.
    2013. Mechanisms of shale gas storage: Implications for shale gas exploration in China. American Association of Petroleum Geologists Bulletin, 97, 1325–1346.
    [Google Scholar]
  19. Hildenbrand, A., Krooss, B.M., Busch, A. & Gaschnitz, R.
    2006. Evolution of methane sorption capacity of coal seams as a function of burial history: A case study from the Campine Basin, NE Belgium. International Journal of Coal Geology, 66, 179–203.
    [Google Scholar]
  20. Jagiello, J. & Thommes, M.
    2004. Comparison of DFT characterization methods based on N2, Ar, CO2 and H2 adsorption applied to carbons with various pore size distributions. Carbon, 42, 1227–1232.
    [Google Scholar]
  21. Jarvie, D.M., Hill, R.J., Ruble, T.E. & Pollastro, R.M.
    2007. Unconventional shale-gas systems: The Mississippian Barnett Shale of north-central Texas as one model for thermogenic shale-gas assessment. American Association of Petroleum Geologists Bulletin, 91, 475–499.
    [Google Scholar]
  22. Ji, L.M., Zhang, T.W., Milliken, K.L., Qu, J.L. & Zhang, X.L.
    2012. Experimental investigation of main controls to methane adsorption in clay-rich rocks. Applied Geochemistry, 27, 2533–2545.
    [Google Scholar]
  23. Ji, W.M., Song, Y., Jiang, Z.X., Wang, X.Z., Bai, Y.Q. & Xing, J.Y.
    2014. Geological controls and estimation algorithms of lacustrine shale gas adsorption capacity: A case study of the Triassic strata in the southeastern Ordos Basin, China. International Journal of Coal Geology, 134–135, 61–73.
    [Google Scholar]
  24. Ji, W.M., Song, Y., Jiang, Z.X., Chen, L., Li, Z., Yang, X. & Meng, M.M.
    2015. Estimation of marine shale methane adsorption capacity based on experimental investigations of Lower Silurian Longmaxi formation in the Upper Yangtze Plateform, south China. Marine and Petroleum Geology, 68, 94–106.
    [Google Scholar]
  25. Joubert, J.I., Grein, C.T. & Bienstock, D.
    1973. Sorption of methane in moist coal. Fuel, 52, 181–185.
    [Google Scholar]
  26. 1974. Effect of moisture on the methane capacity of American coals. Fuel, 53, 186–191.
    [Google Scholar]
  27. Langmuir, I.
    1918. The adsorption of gases on plane surfaces of glass, mica and platinum. Journal of the American Chemical Society, 40, 1361–1403.
    [Google Scholar]
  28. Lastoskie, C., Gubbins, K.E. & Quirke, N.
    1993. Pore size distribution analysis of microporous carbons: a density functional theory approach. Journal of Physical Chemistry, 97, 4786–4796.
    [Google Scholar]
  29. Laxminarayana, C. & Crosdale, P.J.
    1999. Role of coal type and rank on methane sorption characteristics of Bowen Basin, Australia coals. International Journal of Coal Geology, 40, 309–325.
    [Google Scholar]
  30. Levy, J.H., Day, S.J. & Killingley, J.S.
    1997. Methane capacities of Bowen Basin coals related to coal properties. Fuel, 76, 813–819.
    [Google Scholar]
  31. Lewis, R., Ingraham, D., Pearcy, M., Williamson, J., Sawyer, W. & Frantz, J.
    2004. New evaluation techniques for gas shale reservoirs. Paper presented at the Schlumberger Reservoir Symposium, Pittsburgh, 2004.
    [Google Scholar]
  32. Loucks, R.G., Reed, R.M., Ruppel, S.C. & Jarvie, D.M.
    2009. Morphology, genesis, and distribution of nanometer-scale pores in siliceous mudstones of the Mississippian Barnett Shale. Journal of Sedimentary Research, 79, 848–861.
    [Google Scholar]
  33. Loucks, R.G., Reed, R.M., Ruppel, S.C. & Hammes, U.
    2012. Spectrum of pore types and networks in mudrocks and a descriptive classification for matrix-related mudrock pores. American Association of Petroleum Geologists Bulletin, 96, 1071–1098.
    [Google Scholar]
  34. Mastalerz, M., Schimmelmann, A., Drobniak, A. & Chen, Y.Y.
    2013. Porosity of Devonian and Mississippian New Albany Shale across a maturation gradient: Insights from organic petrology, gas adsorption, and mercury intrusion. American Association of Petroleum Geologists Bulletin, 97, 1621–1643.
    [Google Scholar]
  35. Mathia, E.J., Bowen, L., Thomas, K.M. & Aplin, A.C.
    2016. Evolution of porosity and pore types in organic-rich, calcareous, Lower Toarcian Posidonia Shale. Marine and Petroleum Geology, 75, 117–139.
    [Google Scholar]
  36. Mei, L.F., Liu, Z.Q., Tang, J.G., Shen, C.B. & Fan, Y.F.
    2010. Mesozoic intra-continental progressive deformation in Western Hunan-Hubei-Eastern Sichuan Provinces of China: Evidence from apatite fission track and balanced cross-section. Earth Science (Journal of China University of Geosciences), 35, 161–174.
    [Google Scholar]
  37. Myers, A.L. & Monson, P.A.
    2002. Adsorption in porous materials at high pressure: Theory and experiment. Langmuir, 18, 10261–10273.
    [Google Scholar]
  38. Nie, H.K. & Zhang, J.C.
    2012. Shale gas accumulation conditions and gas content calculation: A case study of Sichuan Basin and its periphery in the Lower Paleozoic. Acta Geologica Sinica, 86, 349–361.
    [Google Scholar]
  39. Prinz, D. & Littke, R.
    2005. Development of the micro- and ultramicroporous structure of coals with rank as deduced from the accessibility to water. Fuel, 84, 1645–1652.
    [Google Scholar]
  40. Rexer, T.F., Benham, M.J., Aplin, A.C. & Thomas, K.M.
    2013. Methane adsorption on shale under simulated geological temperature and pressure conditions. Energy & Fuels, 27, 3099–3109.
    [Google Scholar]
  41. Rexer, T.F., Mathia, E.J., Aplin, A.C. & Thomas, K.M.
    2014. High-pressure methane adsorption and characterization of pores in Posidonia shales and isolated kerogens. Energy & Fuels, 28, 2886–2901.
    [Google Scholar]
  42. Robert, R. & Loucks, R.
    2007. Imaging nanoscale pores in the Mississippian Barnett Shale of the northern Fort Worth Basin.American Association of Petroleum Geologists Annual Convention Abstracts, 16, 115.
    [Google Scholar]
  43. Ross, D.J.K. & Bustin, R.M.
    2007. Shale gas potential of the Lower Jurassic Gordondale Member, northeastern British Columbia, Canada. Bulletin of Canadian Petroleum Geology, 55, 51–75.
    [Google Scholar]
  44. 2008. Characterizing the shale gas resource potential of Devonian–Mississippian strata in the Western Canada sedimentary basin: Application of an integrated formation evaluation. American Association of Petroleum Geologists Bulletin, 92, 87–125.
    [Google Scholar]
  45. 2009. The importance of shale composition and pore structure upon gas storage potential of shale gas reservoirs. Marine and Petroleum Geology, 26, 916–927.
    [Google Scholar]
  46. Rouquerol, J., Avnir, D. et al.
    1994. Recommendations for the characterization of porous solids (Technical Report). Pure and Applied Chemistry, 66, 1739–1758.
    [Google Scholar]
  47. Ruppert, A.M., Niewiadomski, M., Grams, J. & Kwapinski, W.
    2014. Optimization of Ni/ZrO2 catalytic performance in thermochemical cellulose conversion for enhanced hydrogen production. Applied Catalysis B: Environmental, 145, 85–90.
    [Google Scholar]
  48. Setzmann, U. & Wagner, W.
    1991. A new equation of state and tables of thermodynamic properties for methane covering the range from the melting line to 625 K at pressures up to 1000  MPa. Journal of Physical & Chemical Reference Data, 20, 1061–1151.
    [Google Scholar]
  49. Sing, K.S.
    1985. Reporting physisorption data for gas/solid systems with special reference to the determination of surface area and porosity. Pure & Applied Chemistry, 57, 603–619.
    [Google Scholar]
  50. Slatt, R.M. & O'Brien, N.R.
    2011. Pore types in the Barnett and Woodford gas shales: Contribution to understanding gas storage and migration pathways in fine-grained rocks. American Association of Petroleum Geologists Bulletin, 95, 2017–2030.
    [Google Scholar]
  51. Tan, J.Q., Weniger, P. et al.
    2014. Shale gas potential of the major marine shale formations in the Upper Yangtze Platform, South China, Part II: Methane sorption capacity. Fuel, 129, 204–218.
    [Google Scholar]
  52. Tian, H., Pan, L., Xiao, X.M., Wilkins, R.W.T., Meng, Z.P. & Huang, B.J.
    2013. A preliminary study on the pore characterization of Lower Silurian black shales in the Chuandong Thrust Fold Belt, southwestern China using low pressure N2 adsorption and FE-SEM methods. Marine and Petroleum Geology, 48, 8–19.
    [Google Scholar]
  53. Tian, H., Li, T.F., Zhang, T.W. & Xiao, X.M.
    2016. Characterization of methane adsorption on overmature Lower Silurian-Upper Ordovician shales in Sichuan Basin, southwest China: Experimental results and geological implications. International Journal of Coal Geology, 156, 36–49.
    [Google Scholar]
  54. Valzone, C., Rinaldi, J.O. & Ortiga, J.
    2002. N2 and CO2 adsorption by TMA and HDP montmorillonites. Material Research, 5, 475–479.
    [Google Scholar]
  55. Venaruzzo, J.L., Volzone, C., Rueda, M.L. & Ortiga, J.
    2002. Modified bentonitic clay minerals as adsorbents of CO, CO2 and SO2 gases. Microporous and Mesoporous Materials, 56, 73–80.
    [Google Scholar]
  56. Wang, D.F., Wang, Y.M. et al.
    2013. Quantitative characterization of reservoir space in the Lower Cambrian Qiongzhusi Shale, Southern Sichuan Basin. Natural Gas Industry, 33, 1–10.
    [Google Scholar]
  57. Wang, S.B., Song, Z.G., Cao, T.T. & Song, X.
    2013. The methane sorption capacity of Paleozoic shales from the Sichuan Basin, China. Marine and Petroleum Geology, 44, 112–119.
    [Google Scholar]
  58. Yang, F., Ning, Z.F., Zhang, R., Zhao, H.W. & Krooss, B.M.
    2015. Investigations on the methane sorption capacity of marine shales from Sichuan Basin, China. International Journal of Coal Geology, 146, 104–117.
    [Google Scholar]
  59. Yang, R., He, S., Yi, J.Z. & Hu, Q.H.
    2015. Nano-scale pore structure and fractal dimension of organic-rich Wufeng-Longmaxi shale from Jiaoshiba area, Sichuan Basin: Investigations using FE-SEM, gas adsorption and helium pycnometry. Marine and Petroleum Geology, 25, 1–19.
    [Google Scholar]
  60. Yuan, W.N., Pan, Z.J. et al.
    2014. Experimental study and modelling of methane adsorption and diffusion in shale. Fuel, 117, 509–519.
    [Google Scholar]
  61. Zhang, Z. & Yang, Z.
    2013. Theoretical and practical discussion of measurement accuracy for physisorption with micro- and mesoporous materials. Chinese Journal of Catalysis, 34, 1797–1810.
    [Google Scholar]
  62. Zhang, T.W., Ellis, G.S., Ruppel, S.C., Milliken, K. & Yang, R.S.
    2012. Effect of organic-matter type and thermal maturity on methane adsorption in shale-gas systems. Organic Geochemistry, 47, 120–131.
    [Google Scholar]
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