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Название: Geophysical Monitoring for Geologic Carbon Storage

Автор: Группа авторов

Издательство: John Wiley & Sons Limited

Жанр: География

Серия:

isbn: 9781119156840

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СКАЧАТЬ fracture cannot be explained by the Gassmann model which assumes uniform pressure within the core. For this sample, because the length of the sample (and the separation distance between the fracture and the sample interfaces) far exceeded the pressure diffusion length, the effect of the fracture on the fluid substitution was seen only when the scCO2 arrived at the fracture.

      The laboratory‐observed changes in seismic velocity and attenuation during scCO2 injection were strongly dependent upon the orientation of the fractures. Particularly, there is an indication that preferential saturation of a fracture by scCO2, oriented perpendicular to the compressional wave direction, can result in sudden decreases in the seismic velocity and attenuation. Because fracture orientation has a dominant effect on the migration of scCO2 and its saturation in reservoir rock, the observed changes can be used for improved assessment of the scCO2's behavior from seismic measurements. Caution must be used in their applications, however, because the pressure diffusion length in reservoir rock is often very short even at the surface seismic exploration frequencies, limiting some of the laboratory‐observed fluid‐substitution‐induced changes in the rock properties (seismic properties) to a small volume around the fractures. Additionally, observed changes in seismic waves in the field are averaged over the effects from multiple fractures with different mechanical properties and orientations.

      Initial experimental work in this research was supported by the Assistant Secretary for Fossil Energy, Office of Natural Gas and Petroleum Technology, CSRP Program, through the National Energy Technology Laboratory. Additional experiments (Frac IIb test) and the rock‐physics analyses were supported by the Office of Science, Office of Basic Energy Sciences, Division of Chemical Sciences of the U.S. Department of Energy, under the U.S. DOE Contract No. DE‐AC02‐05CH11231.

      1 Ajo‐Franklin, J. B., Peterson, J., Doetsch, J., & Daley, T. M. (2013). High‐resolution characterization of a CO2 plume using crosswell seismic tomography: Cranfield, MS, USA. International Journal of Greenhouse Gas Control, 18, 497–509.

      2 Aki, K., & Richards, P. G. (1980). Quantitative seismology, Vol. I: Theory and methods. W H Freeman & Co.

      3 Azuma, H., Konishi, C., & Xue, Z. (2013). Introduction and application of the modified patchy saturation model for evaluating CO2 saturation by seismic velocity. Energy Procedia, 37, 4024–4032. https://doi.org/10.1016/j.egypro.2013.06.302

      4 Brajanovski, M., Gurevich, B., & Schoenberg, M. (2005). A model for P‐wave attenuation and dispersion in a porous medium permeated by aligned fractures. Geophysical Journal International, 163, 372–384.

      5 Cadoret, T., Marion, D., & Zinszner, B. (1995). Influence of frequency and fluid distribution on elastic wave velocities in partially saturated limestones. Journal of Geophysical Research, 100, 154–160.

      6 Dutta, N. C., & Odé, H. (1979a). Attenuation and dispersion of compressional waves in fluid‐filled porous rocks with partial gas saturation (White Model): Part I, Biot theory. Geophysics, 44, 1777–1788.

      7 Dutta, N. C., & Odé, H. (1979b). Attenuation and dispersion of compressional waves in fluid‐filled porous rocks with partial gas saturation (White Model): Part II, Results. Geophysics, 44, 1806–1812.

      8 Gassmann, F. (1951). Über die elastizität poröser medien. Vierteljahrsschrift der Naturforschenden Gesellschaft in Zürich, 96, 1–23. English translation is available from http://sepwww.stanford.edu/sep/berryman/PS/gassmann.pdf (Date last viewed 09/23/2021).

      9 Gurevich, B., Zyrianov, V. B., & Lopatnikov, S. L. (1997). Seismic attenuation in finely layered porous rocks: Effects of fluid flow and scattering. Geophysics, 62(1), 319–324.

      10 Head, K. H. (1982). Manual of soil laboratory testing, Vol. 2. Pentech Press.

      11 Ketcham, R. A., Slottke, D. T., & Sharp, J. (2010). Three‐dimensional measurement of fractures in heterogeneous materials using high‐resolution X‐ray computed tomography. Geosphere, 6(5), 499–514. https://doi.org/10.1130/GES00552.1

      12 Kolsky, H. (1949). An investigation of the mechanical properties of materials at very high rates of loading. Proceedings of the Physical Society of London B, 62, 676–700.

      13 Mavko, G., Mukerji, T., & Dvorkin, J. (1998). The rock physics handbook. Cambridge University Press.

      14 McCool, B., & Tripp, C. P. (2005). Inaccessible hydroxyl groups on silica are accessible in supercritical CO2. Journal of Physical Chemistry B, 109 (18), 8914–8919.

      15 Nakagawa, S. (2011). Split Hopkinson resonant bar test for sonic‐frequency acoustic velocity and attenuation measurements of small, isotropic geological samples. Review of Scientific Instruments, 82, 044901. https://doi.org/10.1063/1.3579501

      16 Nakagawa, S., & Schoenberg, M. A. (2007). Poroelastic modeling of seismic boundary conditions across a fracture. Journal of the Acoustical Society of America, 122(2), 831–847.

      17 Nakagawa, S., Kneafsey, T. J., Daley, T. M., Freifeld, B. M., & Rees, E. V. (2013). Laboratory seismic monitoring of supercritical CO2 flooding in sandstone cores using the Split Hopkinson Resonant Bar technique with concurrent X‐ray computed tomography imaging. Geophysical Prospecting, 61(2), 254–269. https://doi.org/10.1111/1365‐2478.12027

      18 Norris, A. N. (1993). Low‐frequency dispersion and attenuation in partially saturated rocks. Journal of the Acoustical Society of America, 94, 359–370.

      19 Pride, S. R. (2003). Relationships between seismic and hydrological properties. In Y. Rubin & S. Hubbard (Eds.), Hydrogeophysics (pp. 1–31). New York: Kluwer.

      20 Seol, Y., & Kneafsey, T. J. (2011). Methane hydrate induced permeability modification for multiphase flow in unsaturated porous media. Journal of Geophysical Research, 116(B8), B08102. https://doi.org/10.1029/2010JB008040

      21 Shi, J.‐Q., Xue, Z., & Durucan, S. (2007). Seismic monitoring of supercritical CO2 injection into a water‐saturated sandstone: Interpretation of P‐wave velocity data. International Journal of Greenhouse Gas Control, 1, 473–480. https://doi.org/10.1016/S1750‐5836(07)00013‐8

      22 Siggins, A. F. (2006). Velocity‐effective stress response of CO2‐saturated sandstones. Exploration Geophysics, 37, 60–66.

      23 Tittmann, B. R. (1977). Internal friction measurements and their implications in seismic Q structure models of the crust. In J. G. Heacock (Ed.), The Earth's crust (pp. 197–213). AGU Monograph, 20. Washington, D.C.: American Geophysical Union.

      24 Wang, Z., & Nur, A. (1989). Effects of CO2 flooding on wave velocities in rocks with hydrocarbons. SPE Reservoir Engineering, 4, 429–439.

      25 White, J. E., Mikhaylova, N. G., & Lyakhovistsky, F. M. (1975). Low‐frequency seismic waves in fluid‐saturated layered rocks. Izvestija Academy of Sciences, USSR. Physics of the Solid Earth, 11, 654–659.

      26 Xue, СКАЧАТЬ