Communications – electrical: acoustic wave systems and devices – Seismic prospecting – Well logging
Patent
1991-10-16
1993-11-23
Moskowitz, Nelson
Communications, electrical: acoustic wave systems and devices
Seismic prospecting
Well logging
367 32, 364422, G01V 140, G01V 114
Patent
active
052650677
ABSTRACT:
Methods and apparatus are described for simultaneously acquiring time-domain (e.g., compressional) and frequency-domain (e.g., monopole Stoneley and/or dipole shear) borehole logs which are separated by frequency filtering. Monopole (Stoneley) data and dipole (shear) data are acquired simultaneously using discrete-frequency sonic emission, preferably at distinct frequencies to avoid cross-mode interference. A preferred embodiment combines discrete-frequency dipole sonic emission at low frequency (up to 5 kHz) to log formation shear wave, high frequency (5 to 30 kHz) time-domain monopole emission with first-motion detection to log formation compressional wave, and discrete-frequency monopole emission at low frequency (below 5 kHz) to log borehole Stoneley wave. The measurements of compressional, shear and Stoneley can be transmitted uphole using a small telemetry bandwidth. Benefits include higher logging speed, acquisition of all three measurements in a single logging run, real-time acquisition and processing of the three measurements, and a reduced telemetry load which allows a tool making the three measurements to be combined with other logging tools.
REFERENCES:
patent: 3330375 (1967-07-01), White
patent: 3475722 (1969-10-01), White
patent: 3593255 (1971-07-01), White
patent: 3881168 (1975-04-01), Farr et al.
patent: 4131875 (1978-12-01), Ingram
patent: 4207961 (1980-06-01), Kitsunezaki
patent: 4383308 (1983-05-01), Caldwell
patent: 4383591 (1983-05-01), Ogura
patent: 4419748 (1983-12-01), Siegfried, II
patent: 4432077 (1984-02-01), Alhilali et al.
patent: 4516228 (1985-05-01), Zemanek
patent: 4562557 (1985-12-01), Parks et al.
patent: 4594662 (1986-01-01), Devaney
patent: 4606014 (1986-08-01), Winbow et al.
patent: 4649525 (1987-03-01), Angona et al.
patent: 4649526 (1987-03-01), Winbow et al.
patent: 4682308 (1987-07-01), Chung
patent: 4698792 (1987-10-01), Kurkjian et al.
patent: 4700803 (1987-10-01), Mallett et al.
patent: 4703460 (1987-10-01), Kurkjian et al.
patent: 4709362 (1987-11-01), Cole
patent: 4858198 (1989-08-01), Weissman
patent: 4875197 (1989-10-01), Rietsch
patent: 4932003 (1990-01-01), Winbow et al.
patent: 4985873 (1991-01-01), Eyl et al.
patent: 5077697 (1991-12-01), Chang
C. Morris et al., A New Sonic Array Tool for Full Waveform Logging, SPE Paper 13285, presented at the 59th Annual Technical Conference and Exhibit of the SPE, Houston, Tex., Sep. 16-19, 1984.
J. White, The Hula Log: A Proposed Acoustic Tool, paper presented at the SPWLA Meeting, 1967.
S. Cohick et al., Rare-earth iron "square-ring" dipole transducer, J. Acoust. Soc. Am. 72(2), pp. 313-315, Aug. 1982.
A. Harrison et al., Acquisition and Analysis of Sonic Waveforms from a Borehole Monopole and Dipole Source for the Determination of Compressional and Shear Speeds and Their Relation to Rock Mechanical Properties and Surface Seismic Data, SPE Paper 20557, presented at the 65th annual SPE meeting, New Orleans, La., Sep. 23-26, 1990.
J. Tittman, Geophysical Well Logging (Excerpted from Methods of Experimental Physics, vol. 24: Geophysics).
J. E. White, Underground Sound, pp. 139-191, Elsevier, 1983.
D. M. Williams, J. Zemanek, F. A. Angona, C. L. Dennis, and R. L. Caldwell, The Long Spaced Acoustic Logging Tool (Transactions of the SPWLA 25th Annual Logging Symposium, Paper T, 1984).
K. Ellefsen et al., Estimating Phase Velocity and Attenuation of Guided Waves from Acoustic Logging Data, paper presented at the 57th Annual International SEG Meeting, New Orleans, pp. 665-667 (Oct. 15-17, 1987).
K. Hsu, A. Brie, and R. Plumb, A New Method for Fracture Identification Using Sonic Array Tools (Paper presented at the 1985 Annual Technical Conference and Exhibition of the Society of Petroleum Engineers of AIME, Sep. 22-25, 1985, publication No. SPE 14397).
O. Y. Liu, Stoneley Wave-Derived .DELTA.t Shear Log (Paper presented at the SPWLA Twenty-Fifth Annual Logging Symposium, Jun. 10-13, 1984).
J. L. Stevens and S. M. Day, Shear Velocity Logging in Slow Formations Using the Stoneley Wave (Borehole Geophysics Abstract No. BHG7 of the Extended Abstracts of the Annual Meeting of the Society of Exploration Geophysicists, Sep. 1983).
D. Schmitt, Shear wave logging in elastic formations, J. Acoust. Soc. Am. 84 (6), Dec. 1988, pp. 2215-2229.
K. Ellefsen et al., Estimate phase velocity and attenuation of guided waves in acoustic logging data, Geophysics, vol. 54, No. 8 (Aug. 1989), pp. 1054-1059.
G. Winbow, A theoretical study of acoustic S-wave and P-wave velocity logging with conventional and dipole sources in soft formations, Geophysics, vol. 53, No. 10 (Oct. 1988), pp. 1334-1342.
B. P. Lathi, Signals, Systems and Communication (1965), p. 111, p. X, and the title page.
H. Leslie and F. Mons, Sonic Waveform Analysis: Applications, presented at the Society of Professional Well Log Analysts (SPWLA) Annual Logging Symposium, New Orleans, Louisana, Jun. 10-13, 1984.
C. Kitsunezaki, A New Method of Shear-wave Logging, 45 Geophysics 10, pp. 1489-1506 (Oct., 1980).
K. Tanaka, S. Inoue and K. Ogure, Development of a Suspension PS Logging System's Seismic Source for Hard Ground, presented at the 56th SEG Annual Meeting, Houston, Texas, Nov. 2-6, 1986.
J. Zemanek, F. Angona, D. Williams and R. Caldwell, Continuous Acoustic Shear Wave Logging, presented at the 35th SPWLA Logging Symposium, New Orleans, 1984.
W. Benzing, Experimentation in Downhole Shear Wave Velocity Measurements, presented at the SEG Annual Meetings, Las Vegas, Nevada, Sep. 11-15, 1983.
G. Nunn and W. Currie, Bender-Bar Transducers for Earth Acoustic Measurements, presentation at the Interwell Seismic Surveying Workshop, Los Alamos, New Mexico, Mar. 24-26, 1988.
A. Kurkjian and S. Chang, Acoustic Multipole Sources in Fluid-Filled Boreholes, 51 Geophysics 1 (Jan., 1986), pp. 148-163.
S. L. Marple, Jr., Digital Spectral Analysis, pp. 303-349, Prentice Hall, 1987.
Capon, Greenfield and Kolker, Multidimensional Maximum Likelihood Processing of a Large Aperture Seismic Array, 55 Proceedings of the IEEE 192-211 (1967).
L. Baker and G. Winbow, A Multipole P-wave Logging in Formations Altered by Drilling, 53 Geophysics (Sep., 1988), Appendix A, pp. 1207-1218.
R. Hamming, Numerical Methods for Scientists and Engineers, 2d Ed. (1973), pp. 68-70.
R. Wiggins, The General Linear Inverse Problem: Implications of Surface Wave and Free Oscillations for Earth Structure, 10 Review of Geophysics and Space Physics (1972), pp. 251-285.
Foodman Marc D.
Moskowitz Nelson
Pojunas Leonard W.
Riter Bruce D.
Schlumberger Technology Corporation
LandOfFree
Methods and apparatus for simultaneous compressional, shear and does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Methods and apparatus for simultaneous compressional, shear and , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Methods and apparatus for simultaneous compressional, shear and will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1855145