Induction logging sensor

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United States of America Patent

PATENT NO 9880307
SERIAL NO

14522411

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Apparatuses and methods are provided herein that may improve sensitivity to transient signals. For example, an electromagnetic sensor for downhole measurements that includes a plurality of sectors (e.g., four quadrants) is provided herein. Each quadrant may include a magnetic core formed of a material with a high initial magnetic permeability to improve sensitivity to transient signals. A sensor for continuous wave induction tools is also provided, and may include a magnetic core formed of a material with a high initial magnetic permeability. Forming each sector magnetic core of a material with a high mechanical reliability may allow the magnetic core of the corresponding sensor to be pliable and flexible and not brittle and prone to breaking. Furthermore, the corresponding sensor may have enhanced sensitivity, greater stability of sensitivity relative to temperature changes, and high mechanical reliability.

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Patent Owner(s)

  • BAKER HUGHES INCORPORATED

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Forgang, Stanislav W Houston, US 64 1109
Hook, Jonathan F Houston, US 4 23
Liu, Yi Houston, US 759 9343
Morris, Steven A Spring, US 13 109
Reiderman, Arcady Katy, US 108 1596

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