Method of coupling a seimic detector module to the wall of a bor

Details Method of coupling a seimic detector module to the wall of a bor Method of coupling a seimic detector module to the wall of a bor

1990-12-21

1993-04-06

Steinberger, Brian S.

Acoustics

Geophysical or subsurface exploration

Well logging

367911, 181401, G01V 100, G01V 140

Patent

active

052005810

ABSTRACT:
A sonde for acquiring 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 resislient 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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