Method of imaging the permeability and fluid content...

Details Method of imaging the permeability and fluid content... Method of imaging the permeability and fluid content...

G - Physics

01

V

G01V 1/30 (2006.01) G01N 15/08 (2006.01) G01N 29/00 (2006.01) G01V 1/42 (2006.01)

Patent

CA 2273783

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.

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