Communications – electrical: acoustic wave systems and devices – Seismic prospecting – Well logging
Patent
1995-05-17
2000-01-25
Lobo, Ian J.
Communications, electrical: acoustic wave systems and devices
Seismic prospecting
Well logging
181105, 367 31, G01V 140
Patent
active
060184965
ABSTRACT:
A method and apparatus for determining the hydraulic isolation of layers in an earth formation. The characteristics of various interfaces between the materials in the borehole are evaluated. An acoustic investigation is performed by directing an acoustic signal at a radial segment of the borehole. The signal passes through the casing and the fill material and produces a resulting signal which has travelled along a path encountering various interfaces in the borehole. This signal is processed to make hydraulic isolation determinations.
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D'Angelo Ralph M.
Stanke Fred E.
Batzer William B.
Gordon David P.
Jeffery Brigitte L.
Lobo Ian J.
Schlumberger Technology Corporation
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