Electricity: measuring and testing – Of geophysical surface or subsurface in situ – With radiant energy or nonconductive-type transmitter
Reexamination Certificate
2005-08-09
2005-08-09
Patidar, Jay (Department: 2862)
Electricity: measuring and testing
Of geophysical surface or subsurface in situ
With radiant energy or nonconductive-type transmitter
C324S355000, C324S356000, C324S366000, C324S339000
Reexamination Certificate
active
06927578
ABSTRACT:
The invention provides an apparatus for making an electromagnetic measurement from within a subsurface borehole. The apparatus comprises an elongated support having electrically conductive segments and adapted for disposal within the borehole; an antenna adapted to transmit electromagnetic energy disposed on the support such that its axis is tilted or perpendicular with respect to the axis of the support; a sensor disposed on the support and adapted to detect a current flow along the support when the antenna is activated to transmit electromagnetic energy; and means to process the detected current flow to provide an indication of the measurement quality or the position of the support within the borehole.
REFERENCES:
patent: 3305771 (1967-02-01), Arps
patent: 3329889 (1967-07-01), Tanguy
patent: 3388325 (1968-06-01), Birdwell et al.
patent: 3760260 (1973-09-01), Schuster
patent: 4538109 (1985-08-01), Clark
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: 5260662 (1993-11-01), Rorden
patent: 5339037 (1994-08-01), Bonner et al.
patent: 5396175 (1995-03-01), Seeman
patent: 5426368 (1995-06-01), Benimeli et al.
patent: 6373254 (2002-04-01), Dion et al.
patent: 6541979 (2003-04-01), Omeragic
patent: 6573722 (2003-06-01), Rosthal et al.
patent: 2374937 (2002-10-01), None
patent: 2376076 (2002-12-01), None
Homan Dean M.
Omeragic Dzevat
Echols Brigitte L.
McEnaney Kevin P.
Patidar Jay
Schlumberger Technology Corporation
Segura Victor H.
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