Comparison of P- and S-waves velocities estimated from Biot-Gassmann and Kuster-Toksöz models with results obtained from acoustic wavetrains interpretation

• Autorzy: Bała M. , Cichy A.
• Języki publikacji: EN

Abstrakty

EN

Kuster-Toksöz and Biot-Gassmann models for estimating velocities of longitudinal and shear waves on the basis of well-logging data were analysed. P-wave and S-wave velocity models are crucial for interpretation of seismic data. Discussed models enable determination with quite good accuracy, in some cases higher than the acoustic full wavetrains interpretation. Because velocity strongly depends on lithology and saturation of pore space, the selection of parameters of rock matrix, hydrocarbons and formation waters has a strong effect on the quality of velocities estimation.

Słowa kluczowe

EN

compressional waves; shear waves; acoustic wavetrains; well logging

• Wydawca: Instytut Geofizyki PAN ; Springer
• Czasopismo: Acta Geophysica
• Rocznik: 2007
• Tom: Vol. 55, no. 2
• Strony: 222--230

Twórcy

autor

Bała M.

autor

Cichy A.

• Faculty of Geology, Geophysics and Environmental Protection, AGH University of Mining and Metallurgy, Al. Mickiewicza 30, 30-059 Kraków, Poland,

Bibliografia

• Bała, M., 1994, The effect of water saturation in layers on elastic parameters of rocks and reflection coefficients of waves, Acta Geophys. Pol. 42, 149-158.
• Bała, M, A. Cichy and J. Jarzyna, 2003, Modelling of velocity and attenuation of elastic compressional and shear waves in porous rocks with the use of well logging data, Research Project 8 T12B 046 20, Archives of Faculty of Geology of AGH University of Mining and Metallurgy (unpublished).
• Biot, M.A., 1956, Theory of propagation of elastic waves in a fluid saturated porous solid. Low frequency range, J. Acoustic Soc. Am. 28, 2, 168-191.
• Cheng, C.H., and M.N. Toksöz, 1979, Inversion of seismic velocities for pore aspect ratio spectrum of a rock, J. Geophys. Res. 84, 7533-7543.
• Goldberg, I., and B. Gurevich, 1998, A semi-empirical velocity-porosity-clay model for petrophysical interpretation of P- and S-velocities, Geophys. Prosp. 46, 3, 271-285.
• Kimball, Ch.V., and T.L. Marzetta, 1984, Semblance processing of borehole acoustic array data, Geophysics 49, 3, 274-281.
• Krief, M., J. Garat, J. Stellingwerff and J. Ventre, 1990, A petrophysical interpretation using the velocities of P and S waves (full-waveform sonic), The Log Analyst. 31, 8, 355-369.
• Kuster, G.T., and M.N. Toksöz, 1974, Velocity and attenuation of seismic waves in two-phase media. Part I, Theoretical Formulations, Geophysics 39, 5, 587-606.
• Lee, M.W., 2002, Biot-Gassmannn theory for velocities of gas hydrate-bearing sediments, Geophysics 67, 6, 1711-1719.
• Tao, G., and M.S. King, 1993, Porosity and pore structure from acoustic well logging data, Geophys. Prosp. 41, 435-451.
• Toksöz, M.N., C.H. Cheng and A. Timur, 1976, Velocities of seismic waves in porous rocks, Geophysics 41, 621-645.
• Xu, S., and R.E. White, 1995, A new velocity model for clay-sand mixtures, Geophys. Prosp. 43, 91-118.