Nuclear magnetic resonance tool with movable magnets

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United States of America Patent

PATENT NO 8860413
SERIAL NO

13288508

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Abstract

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Methods and systems are provided that enable logging while drilling NMR measurements to be made with a tool having magnets with positions adjustable or movable relative to each other. Such movement can affect the depth of investigation of the NMR tool. A variety of moving assemblies can be used to effectuate the movement, which can be performed either at the surface or downhole. The tool also can include a magnetically permeable member to control the magnetic field gradient.

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Patent Owner(s)

  • SCHLUMBERGER TECHNOLOGY CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Depavia, Luis E Sugar Land, US 13 200
Hopper, Tim Shenton Park, AU 4 113
Oliver, David T Sugar Land, US 6 78
Song, Yi-Qiao Newton, US 82 852

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