Communications – electrical: acoustic wave systems and devices – Seismic prospecting – Well logging
Patent
1994-03-30
1996-08-06
Jordan, Charles T.
Communications, electrical: acoustic wave systems and devices
Seismic prospecting
Well logging
367 86, 181104, G01V 100
Patent
active
055441270
ABSTRACT:
Borehole tools are provided with at least one transmitter which generates acoustic waves at a plurality of azimuthal locations about the borehole, and at least one receiver which receives and measures a characteristic (e.g., velocity) of the acoustic waves at related azimuthal locations. The direction of minimum velocity around the borehole is considered the direction of maximum uniaxial stress in the formation. From the velocity as a function of azimuth information, determinations of formation properties, and logs of the same can be made. The azimuthal direction of minimum velocity around the borehole predicts the propagation direction of artifically induced hydrofractures. The velocity variation around the borehole at a particular depth of the borehole is taken as an indication of susceptibility to failure, with higher velocity variations indicative of a more poorly consolidated formation or a formation with a large uniaxial stress. The curvature of the velocity versus stress curve in the formation is also indicated by how poorly a sine wave fits to the velocity data. Other parameters of the formation are obtained by fitting a best fit curve to the azimuth versus velocity data, where adjustable parameters of the best fit curve constitute the formation parameters.
REFERENCES:
patent: 3611278 (1971-10-01), Guinzy
patent: 3697937 (1972-10-01), Ingram
patent: 4415998 (1983-11-01), Blizard
patent: 4641520 (1987-02-01), Mao
patent: 4740928 (1988-04-01), Gutowski et al.
patent: 4774693 (1988-09-01), Winbow et al.
patent: 4775960 (1988-10-01), Staron et al.
patent: 4791618 (1988-12-01), Pruchnik
patent: 4791619 (1988-12-01), Liu
patent: 4819214 (1989-04-01), Gutowski et al.
patent: 4832148 (1989-05-01), Becker et al.
patent: 4845616 (1989-07-01), Phillips
patent: 4870627 (1989-09-01), Hsu et al.
patent: 5081611 (1992-01-01), Hornby
patent: 5168470 (1992-12-01), Dennis et al.
patent: 5198770 (1993-03-01), Decorps et al.
patent: 5208785 (1993-05-01), Brumley et al.
patent: 5398215 (1995-03-01), Sinha et al.
patent: 5450371 (1995-09-01), MacKay
"Numerical Evaluation of the Transient Acoustic Wave Form Due to a Point Source in a Fluid-Filled Borehole", Tsang and Rader, Geophysics 44, No. 10 pp. 1706-1720 (1979).
"Acoustic Multipole Sources in Fluid-Filled Boreholes", Kurkjian Chan Geophysics 51, No. 1, pp. 148-163 (1986).
"Interaction of Elastic Waves in a Isotropic Solid", Jones & Kobbet, Jour. Acoustic Soc. Am. 35, No. 1, pp. 5-10 (1963).
"Ultrasonic Study of Three-Phonon Interactions. I. Theory", Taylor & Rollins, Phys. Rev. 136, No. 3A, pp. 591-596 (1964).
Non-linear Phenomena in the Propagation of Elastic Waves in so Zarembo & Krasilnikon, Sev. Phys. Usp. 13, No. 6, pp. 778-797 (1971).
"Harmonic Generation of Longitudinal Elastic Waves", Thompson Tiersten, J. Acoust. Soc. Am 62, No. 1, pp. 33-37 (1977).
"Non-Linear Rayleigh Waves: Harmonic Generation, Parametric Amplification and Thermoniscous Damping", Lardner, J. Appl. Phys. 55 No. 9, pp. 3251-3260 (1984).
"Nonlinear Properties of Rayleigh and Staneley Waves in Solids", Shui & Solodov, J. Appl. Phys. 64 No. 11, pp. 6155-6165 (1988).
"Second-Order Elastic Deformation of Solids", Hughes & Keys Phys. Rev. 92, No. 5 pp. 1145-1149 (1953).
"Third Order Elastic Constants and the Velocity of Small Ampliture Elastic Waves in Homogemeously Stressed Media", Thurston & Brugger, Phys. Rev. 133, No. 6A, pp. 1604-1610 (1964).
"Sound Waves in Deformed Perfectly Elastic Matericts Acoustoela Effect", Toupin & Bernstein, J. Acoust. Soc. Am. 33, No. 2, pp. 210-225.
"Parameter of Nonlinearity in Fluids. II", Coppens et al, J. Acoust. Soc. Am. 38, pp. 797-804 (1965).
"Pressure & Temperature Dependence of the Acoustic Velocities of Polymethylmethacrylate", Asay et al, J. Appl. Phys. No. 4, pp. 1768-1783 (1969).
"Third Order Elastic Constants of Ge, MgO and Fused SiO.sub.2 ", Bogardus, J. Appl. Phys. 38, No. 8, pp. 2504-2513 (1965).
"Third-Order Elastic Moduli of Polycrystalline Metals From Ultrasonic Velocity Measurements", Smith et al, J. Acoust. Soc. Am. 40, No. 5, pp. 1002-1008 (1966).
"Ultrasonic Wave Velocities in Stressed Nickel Steel", Crecroft, Nature 195, pp. 1193-1194 (1962).
"Third Order Elastic Constants of Single-Crystal and Polycrystalline Columbium", Graham et al. J. Appl. Phys. 39, No. 7, pp. 3025-3033 (1968).
"Sound Velocity Measurements at High Pressures", Mongomery et al, Rev. Sci. Instr. 38, No. 8, pp. 1073-1076 (1967).
"Velocity of Seismic Waves in Porous Rocks", Toksoz et al, Geophysics 41, No. 4, pp. 621-645 (1976).
Linear & Nonlinear Waves, Whitham, John Wiley & Sons New York 1974.
"Parameter of Nonliearity in Fluids", Beyer, J. Acoust. Soc. Am. 32, No. pp. 719-721 (1960).
Thermodynamic Definition of Higher Order Elastic Constants", Brugger, Phys. Rev. 133, No. 6A, pp. 1611-1612 (1964).
"Finite Deformations of an Elastic Solid", Murnaghan, Chapman & Hall, NY 1951 pp. 89-95.
Ultrasonic Investigation of Mechanical Properties, Green, Academic Press, Ny 1973 pp. 73-145.
"Wave Velocities in Rocks as a Function of Changes in Overbearing Pressure and Pore Fluid Saturants", King, Geophysics 31 No. 1, pp. 50-73 (1966).
"Interaction of Plane Longitudinal & Transverse Elastic Waves", Sov. Phys. Acoust. 6, pp. 306-310 (1961).
Nonlinear Generation of Elastic Waves in Franite & Sandstone: Continuous Wave and Travel Time Observations, Johnson et al. J. Geophysics Res. B. 94, pp. 17729-17733 (1989).
Continuous Wave Phase Detection for Probing Nonlinear Elastic Wave Interactions in Rocks, Johnson et al. J. Acoust. Soc. Am 89, No. 2, pp. 598-603 (1991).
Nonlinear Generation of ELastic Waves in Chrystalline Rock", Johnson et al, J. Geophysics Res.B.92, pp. 3597-3602 (1987).
Physical Ultrasonics, Beyer et al, Academic Press, NY (1969) vol. 32 of Pure & Applied Physics.
Theory of Elasticity, Landau et al, Pegamon Press, Oxford 1986 3rd edition pp. 106-107.
Pressure Derivatives of the Sound Velocities of Polycrystalline Alumina, Schreiber et al, Jour. Amer. Ceram. Soc. 49 pp. 184-190 (1966).
"Effects of Stress on Velocity Anistrophy in Rocks with Cracks", by Nur, Jour. of Geophysical Research, vol.76, No. 8, pp. 2022-2034.
"The Effect of Oriented Cracks on Seismic Velocities", by Anderson, Jour. of Geophysical Research, vol. 79, No. 26 pp. 4011-4015.
"Changers in Seismic Velicity & Attenuation During Deformation of Granite", Lockner et al. Jour. of Geophysical Research, vol. 82, No. 33, Nov. 10, 1977 pp. 5374-5378.
.differential.Stresses Around a Deep Well" by Miles et al., Trans. AIME, 179, (1948) pp. 186-191.
"Corre lation of Longitudinal Velocity Variation with Rock Fabric", Thill et al. J. of Geophysical Research, vol. 74, No. 20, (1969) pp. 4897-4909.
"Stress-Induced Velocity Anisotropy in Rock: An Experimental Study" by Nur et al. J. of Geophysical Research, vol. 74, Dec. 1969, pp. 6667-6674.
Fundamentals of Rock Mechanics, by Jaeger & Cook, c:1969, Chapman and Hall, Ltd, Chapter 15, pp. 363-383.
Gordon David P.
Hyden Martin D.
Jordan Charles T.
Pojunas Leonard W.
Schlumberger Technology Corporation
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