Communications – electrical: acoustic wave systems and devices – Seismic prospecting – Well logging
Reexamination Certificate
2005-02-01
2005-02-01
Lobo, Ian J. (Department: 3662)
Communications, electrical: acoustic wave systems and devices
Seismic prospecting
Well logging
C181S105000, C367S025000
Reexamination Certificate
active
06850462
ABSTRACT:
A method and device are shown for detecting the characteristics of a cement annulus between a casing in a borehole and the surrounding earth formations in a slickline cement bond logging operation. An acoustic logging tool is utilized which produces a pure signal downhole. The received acoustically transmitted energy produces electrical signals indicative of both the amplitude of the received energy and variable density log data. Both the amplitude data and the variable density log data are captured in memory downhole by the use of a time amplitude matrix which stores a limited number of data points for producing a cement bond log at the well surface.
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Bloomfield Dwight A.
McDaniel Ronald E.
Small Tony M.
Gunter, Jr. Charles D.
Lobo Ian J.
Probe Technology Services, Inc.
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