Dry rock model prediction to be used in Biot-Gassmann-Domenico equations for computing acoustic properties of a carbonate rock

Conference · Sat Dec 31 04:00:00 EST 1994

OSTI ID:80297

Zizi, K ^[1]

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1. Elf Aquitaine, Pau (France)

This study is focused on an oil carbonate reservoir. Using assumed porosity and other lithologic information obtained from well logging and laboratory core measurements, the author predicts a relationship between P and S-wave velocities and porosity. Saturated bulk and shear moduli of the porous carbonate reservoir rock are estimated within the framework of the low frequency Biot`s theory (1956) leading to a formula identical with Gassmann`s (1951); effects of partial saturation in oil and water are given by Domenico`s (1977) relations. The Biot-Gassmann-Domenico relations have proved to be most helpful for computing the acoustic properties of oil saturated porous solids and for describing effects of fluid saturation. Although a dry model is absolutely necessary to complete the B-G-D equations (Strandenes, 1991), the Biot theory is of no use to describe or predict properties for the dry frame moduli. In this paper, he indicates how he has estimated and predicted a relationship between frame moduli and porosity leading to the dry model needed in the B-G-D framework.

• OSTI ID: 80297
• Report Number(s): CONF-941015--
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
03 NATURAL GAS
ACOUSTIC MEASUREMENTS
DATA ANALYSIS
MATHEMATICAL MODELS
PETROLEUM DEPOSITS
POROSITY
RESERVOIR ROCK
RESPONSE FUNCTIONS
SEISMIC SURVEYS
SEISMIC WAVES