Method for measuring the resonance of rock material

Measuring and testing – Vibration – Resonance – frequency – or amplitude study

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G01N 2900

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044098375

ABSTRACT:
A simple harmonic oscillator for use in measuring dynamic elastic constants of rock material samples includes a pair of masses vertically suspended from a support position by a pair of wires. At least one mass is driven by a permanent magnet with the driving coil positioned in the air gap to the magnet. The rock sample is horizontally positioned between the pair of masses such that the rock sample acts as a spring element connecting the masses, thereby forming the simple harmonic oscillator. Resonance measurements are determined for various pore fluid contents by introducing various ratios of gas/water/oil into the rock sample.

REFERENCES:
patent: 1414077 (1922-04-01), Fessenden
patent: 3187565 (1965-06-01), Kreiskorte et al.
patent: 3320796 (1976-05-01), Darby
patent: 3489161 (1970-01-01), Rexford
patent: 3589175 (1971-06-01), Bock et al.
patent: 4058007 (1977-11-01), Exner
patent: 4354381 (1982-10-01), Medlin et al.
"The Variation of the Elastic Constants of Rocks with Frequency", by Dr. J. McG. Bruckshaw and P. C. Mahanta; Petroleum, Jan. 1954.
"A Review of the Progress in the Measurement of Dynamic Elastic Properties", by K. W. Hillier.
"Elastic Behaviour of Rocks at Low Frequencies", by M. J. Usher Geophysical Prospecting X.
"Internal Friction in Shear and Shear Modulus of Solenhofen Limestone over a Frequency Range of 10.sup.7 Cycles per Second" by Louis Peselnick and W. F. Outerbridge; Journal of Geophysical Research, vol. 66, No. 2, Feb. 1961.
"Propagation of Elastic Waves in a Cylindrical Bore Containing a Fluid", by M. A. Biot; Journal of Applied Physics; vol. 23, No. 9, Sep. 1952.
"Permeability Profiles from Acoustic Logging", by J. J. Staal; Society of Petroleum Engineers of AIME.
"Effects of Pressure and Fluid Saturation on the Attenuation of Elastic Waves in Sands", by G. H. F. Gardner et al.; Journal of Petroleum Technology; Feb. 1964; pp. 189-198 Petroleum Transactions.
"The Attenuation Constant of Earth Materials" by W. T. Born, pp. 132-147.
"A New Approach to the Study of Elastic Propagation in Rocks" by F. F. Evision.

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