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 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 CO 2 is 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. (Mondol et al., 2007) (Athy, 1930) (Hsu, 2007; Dong et al., 2010) the porosity under the effective confining pressure the porosity under the atmospheric matreial constant

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

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

8. Pore space Size Shape Connectivity Grain Size Shape 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)

13. Results Pre-consolidation stress

14. ( 吳文傑， 2009)

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

16. (Singh, 1997)

17. 1mm (Pettijohn., 1987) Quartz (%)Mica (%) Feldspar (%)Calcite (%) Rock fragment (%)Others (%) Future work

18. Secondary Electron ImageBackscattered Electron Image

19. Thanks for your attention.