AVO forwarding modeling in two-phase media: multiconstrained matrix mineral modulus inversion

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• 作者：Kai Lin (1)
  Zhen-Hua He (1)
  Xiao-Jun Xiong (1)
  Xi-Lei He (1)
  Jun-Xing Cao (1)
  Ya-Juan Xue (2)
  
  1. Key Lab of Earth Exploration & Information Techniques of Ministry of Education ; Chengdu University of Technology ; Chengdu ; 610059 ; China
  2. College of Communication Engineering ; Chengdu University of Information Technology ; Chengdu ; 610225 ; China
  
• 关键词：Matrix mineral bulk modulus ; two ; phase media ; AVO forward modeling
• 刊名：Applied Geophysics
• 出版年：2014
• 出版时间：December 2014
• 年：2014
• 卷：11
• 期：4
• 页码：395-404
• 全文大小：732 KB
• 参考文献：1. Berryman, J. G., 1980, Long-wavelength propagation in composite elastic media: Acoustical Society of America, 68, 1809鈥?831. CrossRef
  2. Biot, M. A., 1956, Theory of Propagation of Elastic Waves in a Fluid-Saturated Porous Solid. I. Low-Frequency Range: Journal of the Acoustical Society of America, 28(2), 168鈥?78. CrossRef
  3. Gassmann, F., 1951, Uber die elastizitat poroser medien: Vier Der Natur Gesellschaft, 96, 1鈥?3.
  4. Greertsma, J., and Smith, D. C., 1961, Some aspects of elastic wave propagation in fluid saturated porous solids: Geophysics, 33(2), 169鈥?81. CrossRef
  5. Keys, R. G., and Xu, S. Y., 2002, An approximation for the Xu-White velocity model: Geophysics, 67(5), 1406鈥?414. CrossRef
  6. Krief, M., Garat, J., Stellingwerff, J. et al., 1990, A petrohysical interpretation using the velocities of P and S waves (full-waveform sonic): The Log Analyst, 31(11), 355鈥?69.
  7. Lin, K., Xiong, X. J., Yang, X. et al., 2011,Self-adapting extraction of matrix mineral bulk modulus and verification of fluid substitution: Applied Geophysics, 8(2), 110鈥?16. CrossRef
  8. Mavko, G., and Mukerji, T., 1995,Seismic Pore space compressibility and Gassmann鈥檚 relation: Geophysics, 60, 1743鈥?749. CrossRef
  9. Mavko, G., Mukerji, T., and Dvorkin, J., 1998, The rock physics handbook: Tools for seismic analysis in porous media: Cambridge University Press, London, 307鈥?09.
  10. Mou, Y. G., 1996, Reservoir Geophysics: Petroleum Industry Press, Beijing.
  11. Nur, A. M., and Wang, Z., 1989, Seismic and acoustic velocities in reservoir rocks: Theoretical and model studies: SEG Geophysics Reprint Series, Vol.2, 1鈥?5.
  12. Plona, T. J., 1980, Observation of a second bulk compressional wave in a porous medium at ultrasonic frequencies: Applied Physics Letters, 36, 259鈥?61. CrossRef
  13. Qiao, W. X., Wang, N., and Yan, Z. P., 1992, Reflection and transmission of acoustic wave at a porous solid/porous solid interface: Chinese Journal Geophysics, 35(2), 242鈥?47.
  14. Russell, B. H., Hedlin, K., Hilterman, F. J., and Lines, L. R., 2003, Fluid-property discrimination with AVO: A biot-Gas ssmann perspective: Geophysics, 68(1), 29鈥?9. CrossRef
  15. Sa, L. M., 2003, Reservoir inversion hydrocarbon detection theory and its application: PhD thesis, Graduate University of Chinese Academy of Sciences, Beijing.
  16. Wang, S. X., 1990, Numerical solutions of the finite element method for the elastic wave problem and AVO problems: Petroleum University, Beijing.
  17. Yong, X. S., Ma, H. Z., and Gao, J. H., 2006, A Study of AVO Equation in dual-phase media and parameter simplification: Advances in Earth Science, 21(3), 242鈥?49.
  
• 刊物主题：Geophysics/Geodesy; Geotechnical Engineering & Applied Earth Sciences;
• 出版者：Springer Berlin Heidelberg
• ISSN：1993-0658

文摘

AVO forward modeling is based on two-phase medium theory and is considered an effective method for describing reservoir rocks and fluids. However, the method depends on the input matrix mineral bulk modulus and the rationality of the two-phase medium model. We used the matrix mineral bulk modulus inversion method and multiple constraints to obtain a two-phase medium model with physical meaning. The proposed method guarantees the reliability of the obtained AVO characteristicsin two-phase media. By the comparative analysis of different lithology of the core sample, the advantages and accuracy of the inversion method can be illustrated. Also, the inversion method can be applied in LH area, and the AVO characteristics can be obtained when the porosity, fluid saturation, and other important lithology parameters are changed. In particular, the reflection coefficient amplitude difference between the fast P wave and S wave as a function of porosity at the same incidence angle, and the difference in the incidence angle threshold can be used to decipher porosity.