Nuclear magnetic resonance methods for extracting information about a fluid in a rock

This invention relates to investigations of rock samples, and more particularly relates to nuclear magnetic resonance (NMR) methods for determining characteristics of a fluid in a rock or earth formation. Nuclear magnetic resonance methods for extracting information about a fluid in a rock are descr...

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Main Authors Hurlimann, Martin D, Terneaud, Olivier J, Freed, Denise, Scheven, Ulrich, Venkataramanan, Lalitha
Format Patent
LanguageEnglish
Published 22.07.2003
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Abstract This invention relates to investigations of rock samples, and more particularly relates to nuclear magnetic resonance (NMR) methods for determining characteristics of a fluid in a rock or earth formation. Nuclear magnetic resonance methods for extracting information about a fluid in a rock are described. A system of nuclear spins in the fluid are prepared in a driven equilibrium, and a series of magnetic resonance signals generated from the fluid. The series of magnetic resonance signals is detected and analyzed to extract information about the fluid in the rock.
AbstractList This invention relates to investigations of rock samples, and more particularly relates to nuclear magnetic resonance (NMR) methods for determining characteristics of a fluid in a rock or earth formation. Nuclear magnetic resonance methods for extracting information about a fluid in a rock are described. A system of nuclear spins in the fluid are prepared in a driven equilibrium, and a series of magnetic resonance signals generated from the fluid. The series of magnetic resonance signals is detected and analyzed to extract information about the fluid in the rock.
Author Venkataramanan, Lalitha
Hurlimann, Martin D
Scheven, Ulrich
Freed, Denise
Terneaud, Olivier J
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References Prammer et al. (5936405) 19990800
Journal of the American Chemical Society, 91:27, (1969), pp. 7784-7785, E. D. Becker et al., "A New Method for Nuclear Magnetic Resonance Enhancement".
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Hurlimann et al. "Restricted Diffusion in Sedimentary Rocks. Determination of Surface-Area-to-Volume Ratio and Surface Relaxivity." Journal of Magnetic Resonance, Series A 111 (1994) pp. 169-178.
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Journal of Molecular Spectroscopy, 35, (1970), pp. 298-305, J. S. Waugh, "Sensitivity in Fourier Transform NMR Spectroscopy of Slowly Relaxing Systems".
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Journal of Magnetic Resonance, 17, (1975), pp. 301-313, H. T. Edzes, "An Analysis of the Use of Pulse Multiplets in the Single Scan Determination of Spin-Lattice Relaxation Rates".
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Title Nuclear magnetic resonance methods for extracting information about a fluid in a rock
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