Communications: electrical – Wellbore telemetering or control – In horizontal or inclined passage arrangement
Patent
1984-05-01
1989-04-11
Steinberger, Brian S.
Communications: electrical
Wellbore telemetering or control
In horizontal or inclined passage arrangement
340857, 324355, 324368, 324323, 166 651, 166 66, E21B 47022, G01V 100
Patent
active
048210358
ABSTRACT:
A tool with a switch is inserted and moved down the inside of tubular-shaped and electrically conductive casing in the well. Spaced apart contacts on the tool are connected between upper and lower electrically conductive casings located on opposite sides of a high impedance separation in the casing. The switch is operated for creating a changing electrical conductance between the upper and lower casings representative of data. The electrical conductance across the high impedance separation is interrogated with an alternating current signal to retrieve the data.
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Hanson Merle E.
Titchener Paul F.
Comdisco Resources, Inc.
Steinberger Brian S.
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