Communications – electrical: acoustic wave systems and devices – Seismic prospecting – Well logging
Patent
1984-03-27
1986-06-10
Moskowitz, Nelson
Communications, electrical: acoustic wave systems and devices
Seismic prospecting
Well logging
367 26, 367 30, 364422, G01V 132, G01V 134, G01V 140
Patent
active
045946914
ABSTRACT:
Disclosed is sonic well logging which gives good results both in open and in cased boreholes. New use is made of the energy content output from a multireceiver tool to find a coherence measure for the received sonic energy and to find the peaks of that coherence measure at each depth level so as to produce a number of new logs of parameters of those peaks. Examples are a slowness/time coherence log for those peaks, as well as new logs related to the arrival times of the coherent energy associated with the peaks and the energy attenuation for those arrival times.
REFERENCES:
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patent: 4040001 (1977-08-01), Vivet et al.
patent: 4114721 (1978-09-01), Glenn, Jr.
patent: 4210966 (1980-07-01), Ingram
patent: 4393484 (1983-07-01), Buchanan et al.
patent: 4403313 (1983-09-01), Garotta
Stoffa et al., "Direct Mapping of Seismic . . . Decomposition", 3/81, pp. 255-267, Geophysics, vol. 43, #3, presented 11/79, at SEG mtg.
F. P. Kokesh et al., "A New Approach to Sonic Logging and Other Acoustic Measurements", Jour. Pet. Tech., vol. 17, No. 3, Mar. 1965.
M. P. Tixier et al., "Sonic Logging", Jour. Pet. Tech., vol. 11, No. 5, May, 1959.
Aron, J., Murray, J. and Seeman, B.: "Formation Compressional and Shear Interval-Transit-Time Logging by Means of Long Spacings and Digital Techniques," presented at the 53rd Annual Fall Technical Conference and Exhibition of the SPE, Oct. 1, 1978, Houston, Tex.
Stoffa, Paul L., et al.: "Direct Mapping of Seismic Data to the Domain of Intercept Time and Ray Parameter: A Plane Wave Decomposition," paper presented orally at 49th Annual Meeting of the Society of Exploration Geophysicists, Nov. 1979, New Orleans, La.
Kokesh, F. P. and Blizard, R. B.: "Geometrical Factors in Sonic Logging," Geophysics, vol. 24, No. 1, Feb. 1959.
Kokesh, F. P., Schwartz, R. J., Wall, W. B. and Morris, R. L.: "A New Approach to Sonic Logging and Other Acoustic Measurements," Jour. Pet. Tech., vol. 17, No. 3, Mar. 1965.
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Tixier, M. P., Alger, R. P. and Doh, C. A.: "Sonic Logging," presented at the 33rd Annual Fall Meeting of Society of Petroleum Engineers in Houston, Tex., Oct. 5-8, 1958, and published in Petroleum Transactions, AIME, vol. 216, pp. 106-114, 1959.
Tixier, M. P., Alger, R. P. and Tanguy, D. R.: "New Developments in Induction and Sonic Logging," Jour. Pet. Tech., vol. 12, No. 5, May 1960.
Morris, R. L., Grine, D. R. and Arkfeld, T. E.: "Using Compressional and Shear Acoustic Amplitudes for the Location of Fractures," Jour. Pet. Tech., vol. 16, No. 6, Jun. 1964.
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Willis, M. E. and Toksoz, N.: "Least Squares Velocity," Jan. 16, 1961 (this is believed to be a preprint of Automatic P & S Velocity Determination From Full Waveform Digital Acoustic Logs, Mass. Inst. of Tech., Cambridge, Mass., Jan. 16, 1981, an effort is being made to locate the printed paper).
Kimball Christopher V.
Marzetta Thomas L.
Moskowitz Nelson
Schlumberger Technology Corporation
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