Apparatus for electromagnetically coupling power and data signals between well bore apparatus and the surface
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United States of America Patent
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-
Feb 21, 1989
Grant Date -
N/A
app pub date -
Jul 16, 1987
filing date -
Jul 16, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In the representative embodiment of the new and improved apparatus disclosed herein, a downhole tool adapted to be coupled in a pipe string and positioned in a well bore is provided with one or more electrical devices cooperatively arranged to receive power from surface power sources or to transmit and/or receive control or data signals from surface equipment. Unique inner and outer coil assemblies arranged on ferrite cores are arranged on the downhole tool and a suspension cable for electromagnetically coupling the electrical devices to the surface equipment so that power and/or data or control signals can be transmitted between the downhole and surface equipment.
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