Feasibility of using distributed acoustic sensors in surface seismic application, The
In this thesis, an imaging technique that utilizes sparsely sampled, multi-component geophone data and a dense surface distributed acoustic sensor (DAS) acquisition is proposed. The PoroTomo survey at Brady's Natural Lab consisted of 238 multi-component geophones that are spaced anywhere from 60 meters to 150 meters apart. This proves to be a difficult migration problem with such sparse spacing. Fortunately, the PoroTomo survey also included 9 km of surface DAS fiber placed in a variety of orientations. DAS, however, can only record particle motion in the direction that it is oriented. After a ...
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