Method and apparatus for shear wave logging

Details Method and apparatus for shear wave logging Method and apparatus for shear wave logging

1980-07-14

1983-01-18

Moskowitz, Nelson

Communications, electrical: acoustic wave systems and devices

Seismic prospecting

Well logging

367 48, 367 75, 367911, 181108, G01V 140

Patent

active

043695060

ABSTRACT:
Apparatus for shear wave logging of a fluid-filled borehole which consist of an elongated housing defining an air cavity and containing first and second spaced geophone housing each having an orthogonal pair of horizontal motion detectors secured therein for detection of horizontal shear waves along said borehole as generated from a seismic source in a frequency range having wavelengths that are long relative to the length of housing.

REFERENCES:
patent: 2191119 (1940-02-01), Schlumberger
patent: 2241874 (1941-05-01), Zuschlag
patent: 2265768 (1941-12-01), Athy et al.
patent: 2784796 (1957-03-01), Overton
patent: 2943694 (1960-07-01), Goodman
patent: 3330375 (1967-07-01), White
patent: 4143736 (1979-03-01), Fair
Koarsberg, "Elastic Wave Velocity . . . by Phase-Delay Methods", 12/75, pp. 955-960, Geophysics, vol. 40, #6.

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