Communications – electrical: acoustic wave systems and devices – Seismic prospecting – Well logging
Patent
1986-12-17
1988-10-04
Moskowitz, Nelson
Communications, electrical: acoustic wave systems and devices
Seismic prospecting
Well logging
367 27, 73574, 73581, G01V 140, G01V 130, G01N 2900
Patent
active
047759607
ABSTRACT:
A method for measuring vibrational stresses and velocities of waves propagated within formations surrounding a wellbore essentially consists in simultaneously measuring the vibrational stress and vibrational velocity produced by propagation of the vibration within the medium, then in establishing a ratio of magnitudes relating to the vibrational stress and velocity in respect of one and the same measuring point. The method and device provided by the invention also find applications in the separation of different types of secondary waves generated during propagation of a primary wave in a medium.
REFERENCES:
patent: 2200476 (1940-05-01), Mounce
patent: 3028749 (1962-04-01), Welkowitz
patent: 3132509 (1964-05-01), Hagashi
patent: 3883841 (1975-05-01), Norel et al.
patent: 4128011 (1978-12-01), Savage
patent: 4446541 (1984-05-01), Cowles
patent: 4449208 (1984-05-01), Moeckel et al.
patent: 4641520 (1987-02-01), Mao
Arens Georges
Gros Pierre
Panziera Jean P.
Staron Philippe
Moskowitz Nelson
Societe Nationale Elf Aquitaine (Production)
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