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US Patent 7126332 Downhole high resolution NMR spectroscopy with polarization enhancement

Patent 7126332 was granted and assigned to Baker Hughes on October, 2006 by the United States Patent and Trademark Office.

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Current Assignee
Baker Hughes
Baker Hughes
Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
Patent Number
7126332
Date of Patent
October 24, 2006
Patent Application Number
10696995
Date Filed
October 30, 2003
Patent Citations Received
‌
US Patent 11913332 Method to prepare virtual assay using fourier transform infrared spectroscopy
0
‌
US Patent 11781988 Method to prepare virtual assay using fluorescence spectroscopy
Patent Primary Examiner
‌
Brij B. Shrivastav
Patent abstract

An apparatus and method is discussed for characterizing a fluid sample downhole of aliphatic hydrocarbon compounds, aromatic hydrocarbon compound, or connate mud filtrates containing carbon-13 isotopes using an enhanced nuclear magnetic resonance (NMR) signal on a measurement-while-drilling device. To enhance the carbon-13 NMR signal these nuclei are being hyperpolarized. Either the Overhauser Effect (OE) or the Nuclear Overhauser Effect or optical pumping and the Spin Polarization Induced Nuclear Overhauser Effect (SPINOE) can serve as a mechanism for hyperpolarization of the carbon-13 nuclei.

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