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Keywords: Biot
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Proceedings Papers

Paper presented at the SPWLA 51st Annual Logging Symposium, June 19–23, 2010
Paper Number: SPWLA-2010-54080
... Abstract: We investigate the possibility to transform the elastic modulus to porosity by combining a Gassmann equation and Biot's theory. We have inverted the formulae to simultaneously use compressional and shear log data for porosity estimation. We apply this method to gas-filled Rotliegend...
Proceedings Papers

Paper presented at the SPWLA 46th Annual Logging Symposium, June 26–29, 2005
Paper Number: SPWLA-2005-S
... be determined. Krief (1987 approaches the same rock physics model differently. In addition to elastic moduli of solids and fluids, the model incorporates shear moduli of the solids and the Biot compressibility constants. Thus, both compressional and shear velocities are available from Krief, whereas only...
Proceedings Papers

Paper presented at the SPWLA 36th Annual Logging Symposium, June 26–29, 1995
Paper Number: SPWLA-1995-TTT
... avertical stress component ( a and two horizontal components (a, and a The total vertical stress component (g,> is equal to overburden P-u= (p Biot s theory relates the ratio of compressibility of rock matrix at zero porosity to the compressibility ofthe bulk volume with porosity. Density log data...
Proceedings Papers

Paper presented at the SPWLA 25th Annual Logging Symposium, June 10–13, 1984
Paper Number: SPWLA-1984-AAA
... ABSTRACT Biot's theory is used on well-consolidated rocks (rocks that obey Wyllie's time-average equation) to examine the hydrocarbon effect on compressional fast- and slow-wave velocities and shear-wave velocities at low and high frequencies. To our knowledge, this is the first time the slow...

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