Nuclear magnetic resonance pulse sequences for determining bound

Electricity: measuring and testing – Particle precession resonance – Using well logging device

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

324307, G01V 300

Patent

active

053898770

ABSTRACT:
An NMR pulse sequence for use in a borehole logging tool includes a series of CPMG pulses according to:

REFERENCES:
patent: 3453433 (1969-07-01), Alger et al.
patent: 3567935 (1971-03-01), Nagel
patent: 3567936 (1971-03-01), Tittman
patent: 3590228 (1971-06-01), Burke
patent: 3638484 (1972-02-01), Tixier
patent: 3896668 (1975-07-01), Anderson et al.
patent: 4310887 (1982-01-01), Suau
patent: 4686364 (1987-08-01), Herron
patent: 4728892 (1988-03-01), Vinegar et al.
patent: 4885540 (1989-12-01), Snoddy et al.
patent: 4933638 (1990-06-01), Kenyon et al.
patent: 5023551 (1991-06-01), Kleinberg et al.
patent: 5055787 (1991-10-01), Kleinberg et al.
patent: 5055788 (1991-10-01), Kleinberg et al.
L. Petrakis and E. Edelheit, "The utilization of nuclear magnetic resonance spectroscopy for petroleum, coal, oil shale, petrochemicals, and polymers. Phenomenology, paradigms of applications and instrumentation," Applied Spectroscopy Reviews, vol. 15 (1979), No. 2, pp. 196-260.
D. P. Gallegos et al., "A NMR Technique for the Analysis of Pore Structure: Application to Materials with Well-Defined Pore Structure," Journal of Colloid and Interface Science, vol. 119, No. 1, Sep. 1987, pp. 127-140 describes the use of NMR spin-lattice.
K. R. Brownstein and C. E. Tarr, "Importance of classical diffusion in NMR studies of water in biological cells," Phys. Rev. A, vol. 19, No. 6, pp. 2446-2453, 1979.
D. P. Gallegos and D. M. Smith, "A NMR Technique for the Analysis of Pore Structure: Determination of Continuous Pore Size Distributions," J. Coll. Inther. Sci., 122, pp. 143-153, 1988.
W. E. Kenyon, J. J. Howard, A. Sezginer, C. Straley, A. Matteson, K. Horkowitz, R. Ehrlich, "Pore-Size Distribution of NMR in Microporous Cherty Sandstones," Trans. SPWLA, Paper LL, 1989.
J. J. Howard, W. E. Kenyon, and C. Straley, "Proton Magnetic Resonance and Pore Size Variations in Reservoir Sandstones," 65th Annual SPE Meeting, paper 20600, New Orleans, La., Sep. 1990.
C. Straley, C. E. Morriss, W. E. Kenyon, and J. J. Howard, "NMR in Partially Saturated Rocks: Laboratory Insights on Free Fluid Index and Comparison with Borehole Logs," SPWLA 32nd Annual Logging Symposium, Jun. 16-19, 1991.
T. C. Farrar and E. D. Becker, Pulse and Fourier Transform NMR, p. 27, Academic Press, 1971.
R. J. S. Brown and B. W. Gamson, "Nuclear Magnetism Logging," AIME (1960) 219, pp. 201-219.
C. H. Neuman and R. J. S. Brown, "Applications of Nuclear Magnetism Logging to Formation Evaluation," J. of Pet. Tech., vol. 34, pp. 2853-2862, 1982.
R. N. Chandler, W. E. Kenyon and C. E. Morriss, "Reliable Nuclear Magnetism Logging: Effective Porosity and Residual Oil Saturation", SPWLA 28th Annual Logging Symposium, Jun. 29-Jul. 2, 1987 Transactions, vol. I, Manuscript C.
M. N. Miller et al., "Spin Echo Magnetic Resonance Logging: Porosity and Free Fluid Index Determination," SPE 20561, vol. .OMEGA., Proceedings of the 1990 Society of Petroleum Engineers Annual Technical Conference, Sep. 23-26, New Orleans, La., 1990.
G. R. Coates et al., "An Investigation of a New Magnetic Resonance Imaging Log," paper DD, vol. II, SPWLA 32nd Annual Logging Symposium Midland, Tex., Jun. 16-19, 1991.
G. R. Coates et al., "The Magnetic Resonance Imaging Log Characterized by Comparison With Petrophysical Properties and Laboratory Core Data," SPE 22723, vol. .OMEGA., Proceedings of the 1991 Society of Petroleum Engineers Annual Technical Conference, Oct. 6-9, Dallas, Tex., 1991.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Nuclear magnetic resonance pulse sequences for determining bound does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Nuclear magnetic resonance pulse sequences for determining bound, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Nuclear magnetic resonance pulse sequences for determining bound will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-290114

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.