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台灣西北部濱海區沉積岩的孔隙率 - 滲透率曲線與微觀構造

台灣西北部濱海區沉積岩的孔隙率 - 滲透率曲線與微觀構造. 報告者： Yun -Chen Yu 指導教授： Jia-Jyun Dong 報告日期： 2011/05/19. Outline. Introduction Materials and methods Description of the rock samples Laboratory measurement system Klinkenberg effect Experimental results

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台灣西北部濱海區沉積岩的孔隙率 - 滲透率曲線與微觀構造

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  1. 台灣西北部濱海區沉積岩的孔隙率-滲透率曲線與微觀構造台灣西北部濱海區沉積岩的孔隙率-滲透率曲線與微觀構造 報告者：Yun-Chen Yu 指導教授：Jia-Jyun Dong 報告日期：2011/05/19

  2. Outline • Introduction • Materials and methods • Description of the rock samples • Laboratory measurement system • Klinkenberg effect • Experimental results • Models for describing the effective confining pressure dependency of porosity • Models for describing the effective confining pressure dependency of permeability • The porosity-permeability relationship • Microstructure • Future work

  3. Introduction Geological storage of CO2is one of the more technologically advanced options available. (Baine and Worden, 2004) (http://ccs.tw/itri)

  4. Porosity and permeability are key fluid flow properties. (David et al., 1994) Porosity and permeability are controlling parameter of fluid flow systems at depth. (Tanikawa and Shimamoto, 2009)

  5. (Athy, 1930) (Hsu, 2007; Dong et al., 2010) the porosity under the effective confining pressure the porosity under the atmospheric matreial constant (Mondol et al., 2007)

  6. (David, 1994) (David, 1994) (Shi and Wang,1986) (Hsu, 2007; Dong et al., 2010) the permeability under the effective confining pressure matreial constant the permeability under the atmospheric

  7. Stress history Klinkenberg effect Irrecoverable deformation (Yang and Aplin, 2007) (Dewhurst et al., 1998) (Tanikawa and Shimamoto, 2009) The porosity-permeability relationship

  8. Pore space Grain Size Size Shape Shape Connectivity Rock type (Bryant and Blunt, 1992; Schwartz et al., 1993; Koponen et al., 1997; Forster et al., 2003)

  9. Materials (Lin and Watts, 2002) (修改自林殿順，2009)

  10. Measurement system

  11. Klinkenberg effect slip flow (Tanikawa and Shimamoto, 2009) the pore pressure in the upper and lower ends of the sample

  12. (Tanikawa and Shimamoto, 2009) (Tanikawa and Shimamoto, 2009)

  13. Results Pre-consolidation stress

  14. (吳文傑，2009) Pre-consolidation stress

  15. Pre-consolidation stress Re-compression Virgin compression De-compression Maximum effective stress

  16. (Singh, 1997)

  17. Future work 1mm (Pettijohn., 1987) 1mm

  18. Secondary Electron Image Backscattered Electron Image

  19. Thanks for your attention.

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