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A method of coupling a seismic detector module to the wall of a borehole, and a sonde for implementing the method
A method of coupling a seismic detector module to the wall of a borehole, and a sonde for implementing the method
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机译:一种将地震探测器模块耦合至井眼壁的方法以及实现该方法的探空仪
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摘要
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 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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