Measuring and testing – Borehole or drilling – Formation logging
Patent
1997-12-12
2000-04-11
Fuller, Benjamin R.
Measuring and testing
Borehole or drilling
Formation logging
E21B 4900
Patent
active
060475951
ABSTRACT:
There is provided a method of accurately estimating the permeability of sedimentary rock formations from well logging data. The method involves a short relaxation time strategy with the identification of the key k-Lambda parameter S/V.sub.p, which is the surface-to-pore ratio. The inverse of T.sub.2 is related to this ratio by the surface relaxivity, .rho.2. The k-Lambda estimator is given by: ##EQU1## where: .DELTA.V.sub.1 represents the volume elements of the T.sub.2 distribution and the sum over i=1 to n represents some set of early to later volume elements; and V.sub.p is the total pore volume.
REFERENCES:
patent: 4420975 (1983-12-01), Nagel et al.
patent: 5156205 (1992-10-01), Prasad
Johnson, D.L., Koplik, J. and Schwartz, L.M., "New Pore-size Parameter Characterizing Transport in Porous Media", Physical Review Letters, (1986), 57, 2564-2567.
Carman, P.C., "Flow of Gases Through Porous Media", (1956), Academic Press-Inc., p. 12-33.
vanOlphen, H. and Fripiat, J.J., "Data Handbook for Clay Minerals and Other Non-metallic Minerals", Pergamon Press, p. 346.
Herron, M.M. "Permeability Estimation", The Search for Oil & Gas in Latin America & the Caribbean, Schlumberger Surenco C.A., Caracas (1995), 2, 44-45.
Bryant, I. et al, "Bachaquero Bloque IV: A Blessing in Disguise", The Search for Oil & Gas in Latin America & the Caribbean, Schlumberger Surenco C.A., Caracas (1995), 2, 33-61.
Herron, S.L. and Herron, M.M., "Quantitative Lithology: An Application for Open Cased Hole Spectroscopy", Transactions of the 37th Annual Logging Symposium, SPWLA, Paper E, p. 14.
Herron, S.L., Chiaramonte, J.M. and Herron, M.M., "Effect of Modifying Element Mineral Transforms on Geochemical Log Interpretation", Nuclear Geophysics (1994), 8(5), 411-432.
Wendlandt, R.F. and Bhuyan, K., "Estimation of Mineralogy and Lithology from Geochemical Log Measurements", American Association of Petroleum Geologists Bulletin, (1990), 74, 837-856.
D. Marion, A. Nur, and F. Alabert, "Modeling the Relationships Between Sonic Velocity, Porosity, Permeability, and Shaliness in Sand, Shale, and Shaley Sand", SPWLA Thirteenth Annual Logging Symposium, Jun. 11-14, 1989.
Sen, P.N., Straley, C., Kenyon, W.E. and Whittingham, M.S., "Surface-to-Volume Ratio, Charge Density, Nuclear Magnetic Relaxation and Permeability in Clay-Bearing Sandstones", Geophysics, (1990), 55, 61-69.
Nelson, P.H., "Permeability-porosity Relationships in Sedimentary Rocks", Log Analyst, (1994) 35, 38-62.
Braynt, S., Cade, C. and Mellor, D., "Permeability Prediction from Geologic Models", American Association of Petroleum Geologists Bulletin, (1993), 77, 1338-1350.
Kenyon, W.E., "Nuclear Magnetic Resonance as a Petrophysical Measurement", Nuclear Geophysics, (1992), 6, 153-171.
Bryant, I.D., Baygun, B., Herron, M.M., Mattson, A., Ramamoorthy, R., Stewart, L., Tariq, S.M., Coll, M.C., Cordova, P., Gamero de Villarroel, H., Hernandez, L., Jiminez, Z., Leon, K. and Rondon, L., "Integration of Old and New Measurements to Optimize Redevelopment of the Lower Lagunillas Reservoir of Bloque IV, Lake Maracaibo, Venezuela", paper SPE 36096 Apr. 23-26, 1996.
Doyen, P.M., "Permeability, Conductivity, and Pore Geometry of Sandstone", Journal of Geophysical Research, (1988), 93, 7729-7740.
Paterson, M.S., "The Equivalent Channel Model for Permeability and Resistivity in Fluid Saturated Rock-a Reappraisal", Mechanics of Materials, (1983), 2, 345-351.
Bourbie, T. and Zinszner, B., "Hydraulic and Acoustic Properties as a Function of Porosity in Founfainebleau Sandstone", Journal of Geophysical Research, (1985), 90, 11524-11532.
Katz, A.J. and Thompson, A.H., "Quantitative Prediction of Permeability in Porous Rock", Physical Review B,(1986),34, 8179-8181.
Herron Michael M.
Straley Christian
Batzer William B.
Fuller Benjamin R.
Levy Mark
Schlumberger Technology Corporation
Thompson Jewel V.
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