Method of imaging the permeability and fluid content structure w

Details Method of imaging the permeability and fluid content structure w Method of imaging the permeability and fluid content structure w

1998-06-30

2000-05-09

Oda, Christine

Communications, electrical: acoustic wave systems and devices

Seismic prospecting

Land-reflection type

367 39, 181102, G01V 140

Patent

active

060613009

ABSTRACT:
A non-destructive method of measuring physical characteristics of a medium, such as uncemented sediment, sandstone, or limestone. A pseudo-random code is generated and is used to generate a pseudo-random acoustic signal. This signal is transmitted into the medium to be measured through the use of a transducer, such as a piezoelectric element, and is received by a plurality of hydrophones. The received signal is then processed to obtain an image of its velocity and attenuation. A universal geoacoustic model of the medium for a given set of measured data is determined, and the model is solved to obtain a pair of permeability-porosity results for the medium. The one of this pair of permeability-porosity results which is correctly indicative of the physical characteristics of the medium is then determined.

REFERENCES:
patent: 4805725 (1989-02-01), Paulsson
patent: 5142500 (1992-08-01), Yamamoto et al.
patent: 5406530 (1995-04-01), Yamamoto
Anselmetti, F.S., Salis, G.A. von, Cunningham, K.J., and Eberli, G.P., "Acoustic properties of Neogene carbonate Neogene Carbonates and Siliciclastics from the subsurface of the Florida Keys: implications for seismic reflectivity," Marine Geology, vol. 144, (1997), p. 9-31.
Biot, M.A., "Theory of Propagation of Elastic Waves in a Fluid-Saturated Porous Solid. I. Low-Frequency Range," J. Acoust. Soc. Am., vol. 28, No. 2, Mar. 1956, p. 168-178.
Biot, M.A., "Theory of Propagation of Elastic Waves in a Fluid-Saturated Porous Solid. II. Higher-Frequency Range," J. Acoust. Soc. Am., vol. 28, No. 2, Mar. 1956, p. 179-191.
Bregman, N.D., Bailey, R.C., and Chapman, C.H., "Crosshole seismic tomography," Geophysics, vol. 54, No. 2, (Feb. 1989), p. 200-127, 11 Figs.
Bregman, N.D., Chapman, C.H., and Bailey, R.C., "Travel Time and Amplitude Analysis in Seismic Tomography," J. Geoph. Res., vol. 4, No. B6, Jun. 10, 1989, p. 7577-7587.
Dvorkin, J., and Nur, A., "Dynamic porelasticity: A unified model with the squirt and the Biot mechanism," Geophysics, vol. 58, No. 4, (Apr. 1993) p. 524-532, 6 Figs.
Jones, Terry D., "Pore fluids and frequency-dependent wave propagation in rocks," Geophysics, vol. 51, No. 10 (Oct. 1986) p. 1939-1953, 18 Figs., 2 Tables.
Yamamoto, T., "Acoustic Imaging of Permeability of Limestone Formations by Crosswell Tomography," Geo-Acoustics Laboratory, RSMAS, University of Miami, Miami, Florida, 33149, USA, p. 2 and 3 of 19.
Yamamoto, T., "Acoustic propagation in the ocean with a poro-elastic bottom," J. Acoust. Soc. Am., 73(5), May 1983, p. 1587-1596.
Yamamoto, T., "Acoustic scattering in the ocean from velocity and density fluctuations in the sediments," Geo-Acoustics Laboratory, RSMAS, University of Miami, Miami, Florida, 33149, USA, Abstract, p. 1-32, 1 Table, 12 Figs.
Yamamoto, T., "Imaging the permeability-porosity structure within the near-surface sediments of Tokyo by acoustic crosswell tomography," Geo-Acoustics Laboratory, RSMAS, Univesity of Miami, Miami, Florida, 33149, USA, p. 1-5.
Yamamoto, T., "A Poro-Elastic Model of Extreamly Permeable Limestone for Permeability Imagining," Geo-Acoustics Laboratory, Applied Marine Physics Division, RSMAS, University of Miami, Miami, Florida, 33149, USA, p. 1-18, 3 Tables, 6 Figs.
Yamamoto, T., Nye, T., and Kuru, M., "Imaging the permeability structure of a limestone aquifer by croswell acoustic tomography," Geophysics, vol. 60, No. 6 (Nov.-Dec. 1995), p. 1634-1645, 12 Figs., 1 Table.
Yamamoto, T., Nye, T., and Kuru, M., "Porosity, Permeability, Shear Strength: Cross-Well Tomography Below an Iron Foundry," Geo-Acoustics Laboratory, Applied Marine Physics Division, RSMAS, University of Miami, Florida, 33149, USA, p. 1-31, 8 Figs.
Yamamoto, T., and Sakakibara, J., "Crosswell tomography imaging of the permeability structure within a sandstone oil field," Geo-Acoustics Laboratory, Applied Marine Physics Division, RSMAS, University of Miami, Florida, 33149, USA, p. 5-9 of 19 (5 Figs.).
Yamamoto, T., Trevorrow, M., Badiey, M., and Turgut, A., "Determination of the seabed porosity and shear modulus proviles using a gravity wave inversion," Geophys J. Int. (1989) 98, p. 173-182.

Affiliated with

Also associated with

Rating

Method of imaging the permeability and fluid content structure w 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 of imaging the permeability and fluid content structure w, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of imaging the permeability and fluid content structure w will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1071705