Wear resistant electrodes for downhole imaging
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United States of America Patent
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Jan 30, 2018
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app pub date -
Apr 29, 2015
filing date -
Apr 29, 2015
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Abstract
Devices and methods for well logging using a wear resistant electrode are provided. A downhole device may include a drill bit, a gauge pad mounted on the drill bit, and a first electrode mounted in the gauge pad. An insulating polycrystalline diamond (PCD) material may surround at least a portion of the first electrode. Additionally, the first electrode may include an electrically conductive wear resistant contact point that maintains constant contact with a wall of a wellbore. Additionally, the first electrode may measure an impedance of a geological formation during a drilling operation.
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