Apparatus and methods for reducing borehole current effects

Details Apparatus and methods for reducing borehole current effects Apparatus and methods for reducing borehole current effects

2005-08-23

2005-08-23

LeDynh, Bot (Department: 2862)

Electricity: measuring and testing

Of geophysical surface or subsurface in situ

With radiant energy or nonconductive-type transmitter

C324S351000

Reexamination Certificate

active

06933726

ABSTRACT:
A well logging tool includes a conductive mandrel; an antenna array disposed around the conductive mandrel, wherein the antenna array comprises a plurality of antennas disposed on insulating supports and at least one contact spacer, the at least one contact spacer having at least one conductor channel having a contact assembly disposed therein; and a sleeve disposed over the antenna array, wherein the sleeve includes at least one electrode, the at least one electrode and the contact assembly adapted to provide a radially conductive path from an exterior of the well logging tool to the conductive mandrel.

REFERENCES:
patent: 4319191 (1982-03-01), Meador et al.
patent: 4651101 (1987-03-01), Barber et al.
patent: 4873488 (1989-10-01), Barber et al.
patent: 5041975 (1991-08-01), Minerbo et al.
patent: 5058077 (1991-10-01), Twist
patent: 5235285 (1993-08-01), Clark et al.
patent: 5359324 (1994-10-01), Clark et al.
patent: 5508616 (1996-04-01), Sato et al.
patent: 5757191 (1998-05-01), Gianzero
patent: 5781436 (1998-07-01), Forgang et al.
patent: 6044325 (2000-03-01), Chakravarthy et al.
patent: 6084052 (2000-07-01), Aufdermarsh et al.
patent: 6147496 (2000-11-01), Strack et al.
patent: 6541979 (2003-04-01), Omeragic
patent: 6573722 (2003-06-01), Rosthal et al.
patent: 6667620 (2003-12-01), Homan et al.
patent: 2 388 664 (2003-11-01), None

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