Communications – electrical: acoustic wave systems and devices – Seismic prospecting – Well logging
Patent
1985-09-23
1987-02-24
Jordan, Charles T.
Communications, electrical: acoustic wave systems and devices
Seismic prospecting
Well logging
73155, E21B 4700, G01V 100
Patent
active
046462732
ABSTRACT:
A method and system for well logging provide indications of the characteristics of fluid flow behind pipe. An acoustic listening device is positioned within a pipe in proximity to suspected fluid flow behind the pipe. Acoustic energy resulting from the fluid flow is detected and separated into at least two frequency groups or ranges; the first comprising acoustic energy of relatively low frequency and the second comprising acoustic energy of relatively higher frequency. The relative distribution of acoustic energy between the two frequency groups provides an indicator of the nature of the fluid flow behind the pipe.
REFERENCES:
patent: 3784828 (1974-01-01), Hayes
patent: 4046220 (1977-09-01), Glenn, Jr.
patent: 4114721 (1978-09-01), Glenn, Jr.
patent: 4173718 (1979-11-01), Fertl
patent: 4217659 (1980-08-01), Glenn, Jr.
patent: 4312049 (1982-01-01), Masse et al.
patent: 4319346 (1982-03-01), MacDonald
patent: 4328567 (1982-05-01), Dodge
patent: 4363112 (1982-12-01), Widrow
Kermit Brown, The Technology of Artificial Lift Methods; vol. 1, Inflow Performance Multiphase Flow in Pipes, Penn Well Books, Tulsa, Oklahoma, (1977), p. 67.
Introduction to Sonar Logging, by F. O. Bohn-Dresser Dallas, Dresser Industries, Inc., Feb. 1979.
Carlson Norman R.
Johnston James M.
Dresser Industries Inc.
Jordan Charles T.
McCollum Patrick H.
Steinberger Brian S.
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