Communications – electrical: acoustic wave systems and devices – Seismic prospecting – Well logging
Patent
1983-05-31
1989-07-25
Steinberger, Brian S.
Communications, electrical: acoustic wave systems and devices
Seismic prospecting
Well logging
367 57, G01V 100
Patent
active
048520675
ABSTRACT:
Methods and apparatus are described utilizing low frequency tube waves in determining characteristics of formations traversed by a borehole. Data received from three spaced receiving transducers are utilized in formulating quantities representative of complex compressibility of formations as well as loss parameters attributed to formation characteristics. When these two factors are recorded as a function of depth, interpretation is made readily available as to the permeability and rigidity of subsurface earth formations. Data is also provided by way of the present invention to enable interpretation concerning the presence of fractures or cracks in the earth formations. The methods and apparatus may also be utilized to examine the condition of casing in a borehole.
REFERENCES:
patent: 3080010 (1963-03-01), Blizard
patent: 3434563 (1969-03-01), Zemanett
patent: 3483505 (1969-12-01), Adair et al.
patent: 3876971 (1975-04-01), Wuenschel
patent: 3991850 (1976-11-01), Escaron
patent: 4131875 (1978-12-01), Ingram
patent: 4134097 (1979-01-01), Cowles
patent: 4432077 (1984-02-01), Alhilali et al.
Huang and Hunter, Correlation of "Tubewave" Events with Open Fracture; Part A, Geological Survey Canada, Paper 81-1A, pp. 361-376, 1981.
Emmett Riggs, "Seismic Wavetypes in boreholes", Geophysics, vol. 20, No. 1., Jan. 1955, pp. 60-67.
Hardage, "Examination of Tube Wavenoise in Vert. Seismic Profiling", Geophysics, vol. 46, No. 6, Jun. 1981, pp. 892-903.
R. L. Morris, "Use of Compressional and Shear Acoustic Amplitude", paper #SPE-723, Soc. Petra Engin., Oct. 6-9, 1963, p. 1.
J. E. White, "Seismic Waves", McGraw-Hill, 1965, p. 2.
Bouchard John H.
Garrana Henry N.
Schlumberger Well Services
Steinberger Brian S.
LandOfFree
Low frequency sonic logging does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Low frequency sonic logging, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low frequency sonic logging will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2363945