Method of coupling a seismic detector module to the wall of a bo

Details Method of coupling a seismic detector module to the wall of a bo Method of coupling a seismic detector module to the wall of a bo

1990-02-20

1991-01-29

Steinberger, Brian S.

Acoustics

Geophysical or subsurface exploration

Well logging

367911, 181401, G01V 100, G01V 140

Patent

active

049879693

ABSTRACT:
A sonde for aquiring seismic signals in a borehole, the sonde comprising: a detector module (30) enclosing at least one seismic sensor (G); an elongate body (21) having a lateral cavity (22) suitable for receiving the detector module (30); a resilient suspension (40, 50) connecting said module to said body; and an anchor member (12, 13) disposed on the opposite side of said body to the side in which said cavity is disposed. The sonde is characterized by the fact that the resilient suspension exerts a force on said module suitable for displacing it out from the cavity and for pressing it against the wall of the borehole so as to couple it to said wall, together with means (41, 43, 51, 53, 60) which are provided to retract the module into said cavity against the force exerted by the resilient suspension.

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