Electricity: measuring and testing – Particle precession resonance – Using well logging device
Reexamination Certificate
2005-05-17
2005-05-17
Shrivastav, Brij B. (Department: 2859)
Electricity: measuring and testing
Particle precession resonance
Using well logging device
C324S300000
Reexamination Certificate
active
06894493
ABSTRACT:
The present invention relates to a method and apparatus for determining the presence of magnetic materials in a media, such as an earth formation. More specifically, the method of the present invention correlates a diffusion-relaxation calibration function representative of magnetic materials with a 2-D function developed using diffusion-editing to determine the presence and relative content of magnetic materials in a media.
REFERENCES:
patent: 3484680 (1969-12-01), Hurlbert
patent: 3657730 (1972-04-01), Robinson et al.
patent: 3775671 (1973-11-01), Brown
patent: 5023551 (1991-06-01), Kleinberg et al.
patent: 5055787 (1991-10-01), Kleinberg et al.
patent: 5055788 (1991-10-01), Kleinberg et al.
patent: 5153514 (1992-10-01), Griffin et al.
patent: 5796252 (1998-08-01), Kleinberg et al.
patent: 6462542 (2002-10-01), Venkataramanan et al.
patent: 6522136 (2003-02-01), Hurlimann et al.
patent: 6570382 (2003-05-01), Hurlimann et al.
patent: 925630 (1963-05-01), None
patent: 1002540 (1965-08-01), None
Bryar et al. Paramagnetic Effects of Iron(III) Species on Nuclear Magnetic Relaxation of Fluid Protons in Porous Media.Journal of Magnetic Resonance142 (2000), pp. 74-85.
Hurlimann, M. D. et al. “Quantitative Measurement of Two-Dimensional Distribution Functions of Diffusion and Relaxation in Grossly Inhomogeneous Fields”.J. Mag. Reson., vol. 157, pp. 31-42 (2002).
Hurlimann, M. D. et al. “Diffusion-Editing: New NMR Measurement of Saturation and Pore Geometry”,SPWLA, 43rd Annual Logging Symposium, Paper FFF, pp. 1-14 (Jun. 2002).
Hurlimann, M. D. et al. “The Diffusion-Spin Relaxation Time Distribution Function as an Experimental Probe to Characterize Fluid Mixtures in Porous Media”.J. Chem. Phys., vol. 117, No. 22, pp. 10223-10232 (Dec. 2002).
Hurlimann, M. D. et al. “Diffusion-Relaxation Distribution Functions of Sedimentary Rocks in Different Saturation States”.Elsevier, Magnetic Resonance Imaging, vol. 21, pp. 305-310 (2003).
Allen David F.
Hürlimann Martin D.
Massey Jermane Edward
Matteson Abigail
Batzer William B.
DeStefanis Jody Lynn
Gaudier Dale
Schlumberger Technology Corporation
Shrivastav Brij B.
LandOfFree
Method and apparatus for NMR measurement of magnetic materials does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for NMR measurement of magnetic materials, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for NMR measurement of magnetic materials will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3403777