Apparatus for generating P waves and S waves

Details Apparatus for generating P waves and S waves Apparatus for generating P waves and S waves

1980-12-12

1983-05-17

Moskowitz, Nelson

Acoustics

Geophysical or subsurface exploration

Well logging

181120, 367 75, 367912, G01V 140, G01V 114

Patent

active

043835910

ABSTRACT:
An apparatus for generating P waves and S waves in a ground formation for a geological survey and the like. The apparatus has a percussive device which is driven to abruptly increase water pressure within a bore hole of the ground formation.

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patent: 3741333 (1973-06-01), Moniz et al.
patent: 4042063 (1977-08-01), Waters
patent: 4118994 (1978-10-01), Layotte et al.
patent: 4207961 (1980-06-01), Kitsunezaki
patent: 4222455 (1980-09-01), Lerwill
Kitsunezaki, "A New Method for Shear--Wave Logging", 10/31/78, pp. 1489-1506, 48th Anniv. Int. SEG Meeting, S.F., Calif.
Schwarz et al., "A Technique . . . Marine Foundations", 5/8/74, O.T.C., vol. 1, pp. 755-762, OTC 2014.
Carabelli, "L'Impiegor del . . . Fondaziane", 1968, pp. 91-101, Ballet. Geog. Teor. Ed. Appl., vol. X, #38.

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