Patent ID: 7187620

Claim:
A borehole seismic sensing apparatus comprising: a conveyance system tool having a sensor section and having a weak point in the conveyance below said sensor section, the tool being configured to break away below said sensor section at the weak point in the conveyance during retraction if said tool is stuck below the weak point; a shuttle attached to said conveyance along said sensor section for placing in a borehole to sense seismic signals said shuffle having a seismic sensor package therein, said sensor package having a magnet clamp operable to selectively magnetically clamp the shuttle to an adjacent structure for acoustically coupling the shuffle and the adjacent structure together; and said sensor package in said shuttle being suspended by an acoustic isolator system disposed between said shuttle and said sensor package and operable to isolate said sensor package from propagations through the shuffle and conveyance, wherein said acoustic isolator comprises a fine wire suspension and a suspension spring.