METHODS AND SYSTEMS FOR MONITORING A TARGET USING REFRACTION DATA ACQUIRED WITH BURIED SOURCES AND BURIED SENSORS

摘要

Methods and systems for monitoring a target volume are characterized by having sources and detectors buried under the weathering layer and comparing data corresponding to refracted waves acquired during different surveys to infer changes in the target volume, wherein locations of sources and detectors are the same for the different surveys.

主权项

1. A method for monitoring a target volume, the method comprising:
deploying one or more seismic sources and one or more seismic detectors under the weathering layer so that seismic waves emitted by the one or more seismic sources propagate through the target volume before reaching the one or more seismic detectors; obtaining a first refracted dataset during a first survey using the one or more seismic detectors and the one or more seismic sources; obtaining a second refracted dataset during a second survey using the one or more seismic detectors and the one or more seismic sources; and comparing the first refracted dataset with the second refracted dataset to estimate changes inside the target volume between the first survey and the second survey, wherein locations of the one or more seismic sources and of the one or more seismic detectors are the same for the first survey and for the second survey.