Electricity: measuring and testing – Particle precession resonance – Using well logging device
Reexamination Certificate
2008-09-02
2008-09-02
Arana, Louis M (Department: 2831)
Electricity: measuring and testing
Particle precession resonance
Using well logging device
C324S338000
Reexamination Certificate
active
11220440
ABSTRACT:
An induction logging tool having concentric transmitter and receiver antennas can be used to make measurements of earth formations at frequencies up to 500 MHz. The antennas may be mounted on the mandrel of a bottomhole assembly for MWD applications, or may be pad mounted for wireline applications. Litz winding is used in the coils to minimize eddy current losses. The antennas may be formed on a flexible circuit board.
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Bespalov Alexandre
Forgang Stanislav W.
Rabinovich Michael B.
Tabarovsky Leonty A.
Arana Louis M
Baker Hughes Incorporated
Madan Mossman & Sriram P.C.
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