Non-destructive method of measuring physical characteristics of

Details Non-destructive method of measuring physical characteristics of Non-destructive method of measuring physical characteristics of

1990-11-08

1992-08-25

Steinberger, Brian S.

Communications, electrical: acoustic wave systems and devices

Seismic prospecting

Land-reflection type

367912, 181112, G01V 100

Patent

active

051425009

ABSTRACT:
A non-destructive method of measuring physical characteristics of sediments to obtain a cross-sectional distribution of porosity and permeability values and variations, and of shear modulus and shear strength. A pair of boreholes have borehole entries spaced apart from each other at a predetermined distance, and a plurality of hydrophones are spaced at predetermined known positions. A source of seismic energy is placed into another borehole and activated to transmit seismic wave energy from the source to the hydrophones. Seismic wave characteristics are measured in a multiplicity of paths extending from the source to the hydrophones, using cross-bore hole tomography.

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"Synthetic seismograms for marine sediments and determination of porosity and permeability", A. Turgut and T. Yamamoto, Geophysics, vol. 53, No. 8 (Aug. 1988), pp. 1056-1067.

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