Electricity: measuring and testing – Of geophysical surface or subsurface in situ – Using electrode arrays – circuits – structure – or supports
Reexamination Certificate
2007-07-03
2007-07-03
LeDynh, Bot (Department: 2862)
Electricity: measuring and testing
Of geophysical surface or subsurface in situ
Using electrode arrays, circuits, structure, or supports
C324S347000
Reexamination Certificate
active
10812369
ABSTRACT:
Sensor assemblies including transmitter and receiver antennas to respectively transmit or receive electromagnetic energy. The sensor assemblies are disposed in downhole tools adapted for subsurface disposal. The receiver is disposed at a distance less than six inches (15 cm) from the transmitter on the sensor body. The sensor transmitter or receiver includes an antenna with its axis tilted with respect to the axis of the downhole tool. A sensor includes a tri-axial system of antennas. Another sensor includes a cross-dipole antenna system.
REFERENCES:
patent: 3808520 (1974-04-01), Runge
patent: 3973181 (1976-08-01), Calvert
patent: 4383220 (1983-05-01), Baldwin
patent: 4697190 (1987-09-01), Oswald
patent: 4857852 (1989-08-01), Kleinberg et al.
patent: 5168234 (1992-12-01), Freedman
patent: 5235285 (1993-08-01), Clark et al.
patent: 6147496 (2000-11-01), Strack et al.
patent: 6163155 (2000-12-01), Bittar
patent: 6191588 (2001-02-01), Chen
patent: 6297639 (2001-10-01), Clark et al.
patent: 6476609 (2002-11-01), Bittar
patent: 6493632 (2002-12-01), Mollison et al.
patent: 6557794 (2003-05-01), Rosthal et al.
patent: 6566881 (2003-05-01), Omeragic et al.
patent: 6600321 (2003-07-01), Evans
patent: 6667620 (2003-12-01), Homan et al.
patent: 6690170 (2004-02-01), Homan et al.
patent: 6711502 (2004-03-01), Mollison et al.
patent: 6768299 (2004-07-01), Almaguer et al.
patent: 6788065 (2004-09-01), Homan et al.
patent: 6957708 (2005-10-01), Chemali et al.
patent: 6975120 (2005-12-01), Amini
patent: 2003/0055565 (2003-03-01), Omeragic
patent: 2003/0085707 (2003-05-01), Minerbo et al.
patent: 2003/0164706 (2003-09-01), Iwanicki et al.
Homan Dean M.
Omeragic Dzevat
Sebline Nicolas
Zhang Tianhua
LeDynh Bot
Liang Osha
McEnaney Kevin P.
Schlumberger Technology Center
White Bryan L.
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