Acoustics – Geophysical or subsurface exploration – Seismic source and detector
Reexamination Certificate
2005-09-13
2008-09-16
Donovan, Lincoln (Department: 2837)
Acoustics
Geophysical or subsurface exploration
Seismic source and detector
C181S108000, C181S121000, C181S112000, C367S025000, C367S033000, C367S911000
Reexamination Certificate
active
07424928
ABSTRACT:
A downhole receiver for gathering seismic and sonic data from inside a borehole includes a substantially tubular housing adapted for axial connection to a tool string, and one or more sensors. A damping element is provided to flexibly couple each sensor to the tubular housing. An actuator extends the one or more sensors substantially radially with respect to the tubular housing to clamp the sensors against the wall of the borehole. In selected embodiments, the sensors may be one or multiple component geophones, accelerometers, hydrophones, vibrometers, or the like.
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Cox Dale
Dahlgren Scott
Hall David R.
Hall, Jr. H. Tracy
Pixton David S.
Donovan Lincoln
Nelson Daniel P.
Phillips Forrest
Wilde Tyson J.
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