Data processing: measuring – calibrating – or testing – Measurement system in a specific environment – Earth science
Reexamination Certificate
2006-04-11
2006-04-11
McElheny, Jr., Donald (Department: 2857)
Data processing: measuring, calibrating, or testing
Measurement system in a specific environment
Earth science
Reexamination Certificate
active
07027927
ABSTRACT:
A method and apparatus for determining formation slowness around a borehole are provided. The Fresnel volume concept is applied for traveltime tomography. The Fresnel volume represents a sonic wave propagation path about the borehole. The application of Fresnel volume to sonic data provides for a stable inversion and makes practical 3-D tomography. Inversion is accomplished by an iterative back-projection method.
REFERENCES:
patent: 5062086 (1991-10-01), Harlan et al.
patent: 5081611 (1992-01-01), Hornby
Watanabe , Toshiki, et al., “Seismic Traveltime Tomography Using Fresnel Volume Approach”, Expanded Abstracts of 69th SEG Annual Meeting, SPRO12.5, 1999, 4 pages.
Watanabe, Toshiki, et al., “Seismic Tomography By Use Of Fresnel Volumes”, Proceedings of the 4th SEGJ International Symposium—Fracture Imaging, pp. 123-128, 1998, (Abstract only)..
Toshiki Watanabe, Masamichi Fujimoto and Yuzuru Ashida, “Seismic tomography by use of Fresnel volumes”, Proc. of the 4th SEGJ Int'l Symp., pp. 123-128, Dec. 1998.
Vidale, J., “Finite-Difference Calculation of Travel Times”, Bulletin of the Seismological Soc. of America, vol. 76, No. 6 pp. 2062-2076, 1988.
Matsuoka, T., “Forward Modeling for Ray Tomography”, Proc. 1st SEGJ Int'l Symposium on Geotomography, pp. 148-156, 1990.
Kvasnicka, M., Cerveny, V., “Fresnel Volumes and Fresnel Zones in Complex Laterally Varying Structures”, Journal of Seismic Exploration 3, pp. 215-230, 1994.
Nurhandoko, B.E.B., Matsuoka, T., Watanabe, T. Ashida, Y., “Land seismic referaction tomography using homogeneous velocity as initial model”, SEG 1999 Expanded Abstracts, pp. 1481-1484, 1999.
Watanabe, T., Matsuoka, T., Ashida, Y., “Seismic traveltime tomography using Fresnel volume approach”, SEG 1999 Expanded Abstracts, pp. 1402-1405, 1999.
Cerveny, V., Soares, J.E.P., “Fresnel volume ray tracing”, Gelphysics, Bol. 57, No. 7, pp. 902-915, 1992.
Matsuoka, T., Ezaka, T., “Ray tracing using reciprocity”, Geophysics, vol. 57, No. 2, pp. 326-333, 1992.
Kimball, C.V., Marzetta, T.L., “Semblance processing of borehole acoustic array data”, Geophysics, vol. 49, No. 3, pp. 247-281, 1984.
P. M. Soupios, C. B. Papazchos, C. Juhlin, G.N. Tsokas, “Nonlinear 3-D traveltime inversion of crosshole data with an application in the area of the Middle Ural Mountains”, Gelphys. vol. 66, No. 2 pp. 627-636.
A.M. Popovici, J.A. Sethian, “3-D imaging using higher order fast marching traveltimes”, Gelphys. vol. 67, No. 2, pp. 604-609.
J.A. Sethian, A.M. Popovici, “3-D traveltime computation using the fast marching method”, Geophys. vol. 64, No. 2, pp. 516-523.
Banchet Nicholas
Cao Di
Endo Takeshi
Lee Jong-ha
Matsuoka Toshifumi
Echols Brigette
McElheny Jr. Donald
Ryberg John
Schlumberger Technology Corporation
Wang William L.
LandOfFree
Methods for determining formation and borehole parameters... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Methods for determining formation and borehole parameters..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Methods for determining formation and borehole parameters... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3547346