The present invention provides an apparatus and method for sensing
subsurface data. One embodiment of the invention comprises a shuttle
attached to a conveyance where the conveyance and shuttle are adapted to
be spooled downhole into a borehole for sensing seismic data. The shuttle
contains a sensor package that is preferably acoustically isolated in the
shuttle. The sensor package includes a sensor array and a magnet clamp. A
sensor section can contain several shuttles, each shuttle containing at
least one sensor. In one embodiment, the sensor can be a fiber optic
sensor. The magnet clamp is operable to controllably clamp and
acoustically couple together the sensor package, the shuttle, and the
adjacent structure which is typically the borehole casing. The magnet
clamp is likewise operable to unclamp and uncouple the shuttle from the
adjacent structure so as to be retracted uphole for subsequent use.