Acoustic isolator for a borehole logging tool

Details Acoustic isolator for a borehole logging tool Acoustic isolator for a borehole logging tool

1992-11-04

1993-07-20

Lobo, Ian J.

Acoustics

Geophysical or subsurface exploration

Well logging

367 25, G01V 140

Patent

active

052295532

ABSTRACT:
An acoustic isolator for use with a logging-tool assembly for generating both flexural wavefields and compressional wavefields in the sidewall formations encountered by a borehole. The acoustic isolator is sub-flexible and is composed of a plurality of individual vertebrate links. The links are made up of a plurality of spools laid out end-to-end in tandem. The spools have upset end portions. The upset end portions of each pair of adjacent spools are externally gripped by a split shells having internal recesses that fit over the upset end portions of the spools.

REFERENCES:
patent: 3288245 (1966-11-01), Anderson
patent: 4446539 (1984-05-01), von Bose
patent: 4516228 (1985-05-01), Zemanek, Jr.
patent: 4872526 (1989-10-01), Wignall et al.
Sales Brochure "Multiple Array Acoustilog" [MAC], Atlas Wireline Services.

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