Patent ID: 11971514
Assignee: SERCEL
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A method for monitoring the subsoil of the earth under a target zone, the method comprising:
recording for a period of time, with a pair of sensors, which are located on opposite sides of the target zone, seismic waves coming from an identified and mobile source of seismic noise, wherein the period of time is defined by a first moment in time, when a first point of contact between the source and the earth is on a straight line passing through a barycenter of the pair of sensors, and a second moment in time, when a last point of contact between the source and the earth is on the straight line;
reconstructing a seismogram of the target zone by interferometry based on said recorded seismic waves and the period of time; and
generating an image of the subsoil under the target zone using the seismogram for detecting an underground anomaly.