Wells – Processes – With indicating – testing – measuring or locating
Reexamination Certificate
2007-12-04
2007-12-04
Bagnell, David (Department: 3672)
Wells
Processes
With indicating, testing, measuring or locating
C166S065100, C166S104000, C324S342000, C340S854800, C175S107000, C175S040000
Reexamination Certificate
active
11203057
ABSTRACT:
Apparatus and methods for establishing electrical communication between an instrument subsection disposed below a mud motor and an electronics sonde disposed above the mud motor in a drill string conveyed borehole logging system. Electrical communication is established via at least one conductor disposed within the mud motor and connecting the instrument sub section to a link disposed between the mud motor and the electronics sonde. The link can be embodied as a current coupling link, a magnetic coupling ling, an electromagnetic telemetry ling and a direct electrical contact link. Two way data transfer is established in all link embodiments. Power transfer is also established in all but the electromagnetic telemetry link.
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patent: 5160925 (1992-11-01), Dailey et al.
patent: 5725061 (1998-03-01), Van Steenwyk et al.
patent: 6392561 (2002-05-01), Davies et al.
patent: 6540032 (2003-04-01), Krueger
patent: 2004/046505 (2004-06-01), None
PCT Search Report received in International Application No. PCT/US06/33343 dated May 17, 2007.
Konschuh Christopher Walter
Larronde Michael Louis
Thompson Larry Wayne
Wisler Macmillan M.
Fuller Robert E.
Weatherford Canada Partnership
Wong Cabello Lutsch Rutherford & Brucculeri LLP
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